Browse specialties
Chiropractors
Dentists
Dermatologists
Ear, Nose & Throat Doctors
Endocrinologists
Eye Doctors
OBGYNs
Ophthalmologists
Optometrists
Orthopedic Surgeons
Podiatrists
Primary Care Doctors
Psychiatrists
Psychologists
Therapist-Counselors
See all specialties A-Z
Zocdoc
HomeAbout usPressCareersHelp
Contact
service@zocdoc.com855-962-3621
Discover
The Paper Gown: Stories for and about patientsThe Script: Insights for doctorsCommunity StandardsData and privacyVerified reviewsTech BlogNew
Are you a top doctor or health service?
Try Zo, your AI Phone AssistantList your practice on ZocdocLearn about Zocdoc for Health SystemsBecome an EHR partner
Insurance Carriers
Top Specialties
Welcome to Zocdoc!
Book local doctors who take your insurance
Sign up
For providers
Grow your practice
For patients
Browse doctors
Browse practices
Browse hospitals
Browse insurances
Browse locations
Browse conditions
Browse procedures
Browse treatments
Zocdoc
HomeAbout usPressCareersHelp
Contact
service@zocdoc.com855-962-3621
Discover
The Paper Gown: Stories for and about patientsThe Script: Insights for doctorsCommunity StandardsData and privacyVerified reviewsTech BlogNew
Are you a top doctor or health service?
Try Zo, your AI Phone AssistantList your practice on ZocdocLearn about Zocdoc for Health SystemsBecome an EHR partner
Insurance Carriers
Top Specialties
HelpList your practice on Zocdoc
Sign up

Find an in-network doctor from over 10,000 insurance plans

Add your insurance to see in-network doctors
insurance link for 300
insurance link for 307
insurance link for 323
insurance link for 356
insurance link for 324
See all (1,000+)
290 verified UnitedHealthcare Gastroenterologists in College Park, MD
Zocdoc verifies all providers before they can appear in Zocdoc search results. Every provider that appears in search is open to new patients.
In-network providersInsurance logo
Availability last updated 10/02/2026
Availability last updated 10/02/2026

Dr. Kirsti Campbell, MD

Gastroenterologist
4.87
·47 reviews
All around great professional experience. I’m glad I chose this doctor and this clinic. - Sep 24, 2026 by Clifford C.Click to read more
14 mi · 4660 Kenmore Ave, Ste 810, Alexandria, VA 22304
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Kirsti Campbell is a gastroenterologist who sees patients in Falls Church, Fairfax, and Alexandria, VA. She offers in-office consultations at Gastro Virginia. She works with individuals seeking evaluation and care for digestive health concerns, from new symptoms to ongoing gastrointestinal condi...Click to read more
Next available: Thu, Oct 8

Dr. Alexander Mamunes, MD

Gastroenterologist
4.92
·216 reviews
Very fast, listens wells, and the staff was friendly and willing to give steps and explanation. by APClick to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Alexander Mamunes is a reliable and accomplished internist. Catering to the people of Columbia and Timonium, MD, he works at the Gastro Center of MD, treating various complex chronic disorders in adults. As a part of his educational training, Dr. Mamunes acquired his medical degree from the Un...Click to read more
Next available: Tue, Oct 6

Dr. Joshua Rosenbloom, DO

Gastroenterologist
4.82
·315 reviews
Dr Rosenblum Has an excellent ability to communicate and is very professional. - Nov 12, 2025 by Richard T.Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in acid reflux + 4 more ·
Read bio
Dr. Josh Rosenbloom is a Board-Certified physician who specializes in both Gastroenterology and hepatology. Dr. Rosenbloom received his medical degree from Des Moines University and completed his internal medicine residency and Gastroenterology fellowship at St. John Providence health system through...Click to read more
Next available: Tue, Oct 6

Dr. Urooj Ahmed, MD

Gastroenterologist
4.39
·38 reviews
Dr Ahmed was very attentive, patient and knowledgeable. He listened to my symptoms and concerns, before checking me and giving his expert opinion. When I shared with him I had lab appointment afterwards, he made me aware lab office was in-house, which was very convenient. I would recommend him to an...Click to read more
14.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Expertise in upper gi endoscopy + 5 more ·
Read bio
Dr. Urooj Ahmed is a dedicated gastroenterologist practicing at the Gastro Center of MD, serving the communities of Columbia and Annapolis, MD. With extensive training and experience, Dr. Ahmed diagnoses and manages various gastrointestinal conditions to improve his patients' quality of life. Dr. A...Click to read more
Next available: Mon, Oct 5

Dr. Farzin Rashti, MD

Gastroenterologist
4.90
·551 reviews
Some of the best bedside manner I have seen from a doctor. Could not recommend someone more. - Oct 26, 2022 by Luke C.Click to read more
14 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients · 18 years of experience · Highly recommended · Expertise in colonoscopy + 3 more ·
Read bio
Farzin Rashti, M.D., FACP is Board Certified in Gastroenterology & Hepatology and Internal Medicine and is dedicated to offering his patients superior personalized care in a respectful and supportive environment. Dr. Rashti works toward developing a partnership with his patients and forms a unique c...Click to read more
Next available: Thu, Oct 8

Dr. Dhruv Lowe, MD

Gastroenterologist
4.88
·434 reviews
Dr. Lowe was great! He found a solution quickly. His office is nice and staff is welcoming!Click to read more
14 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more
Next available: Thu, Oct 8

Dr. Rashika Sood, MD

Internist
4.42
·1484 reviews
Dr. Sood is very kind and genuinely interested in her patients. - Feb 16, 2021Click to read more
10 mi · 7610 Pennsylvania Ave, #300, Forestville, MD 20747
In-network · UnitedHealthcare
Accepting new patients · Expertise in high cholesterol + 2 more ·
Read bio
**(WE ONLY ACCEPT PATIENTS 21 YEARS OLD AND ABOVE.) As a native of Bowie, MD, Dr. Rashika Sood, serves her community as an Internal Medicine specialist and Primary Care Physician. Dr. Sood earned her Bachelor of Medicine, Bachelor of Surgery degree from Dayanand Medical College. She then complet...Click to read more
Next available: today

Dr. Eduardo Castillo, MD

Gastroenterologist
4.88
·240 reviews
Dr. Castillo was extremely nice, patient and responsive to questions. - Jul 15, 2026 by Talitha S.Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 2 more ·
Read bio
Serving the communities of Olney and Columbia, MD, Dr. Eduardo Castillo is an attending physician at Gastro Center of Maryland. An accomplished gastroenterologist, he looks forward to providing his patients with the proper tools and advice they need to improve or maintain their overall health. Dr...Click to read more
Next available: Wed, Oct 7

Dr. Farzin Rashti, MD

Gastroenterologist
4.90
·551 reviews
Some of the best bedside manner I have seen from a doctor. Could not recommend someone more. - Oct 26, 2022 by Luke C.Click to read more
14.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · 18 years of experience · Highly recommended · Expertise in colonoscopy + 3 more ·
Read bio
Farzin Rashti, M.D., FACP is Board Certified in Gastroenterology & Hepatology and Internal Medicine and is dedicated to offering his patients superior personalized care in a respectful and supportive environment. Dr. Rashti works toward developing a partnership with his patients and forms a unique c...Click to read more
Next available: Tue, Oct 6

Dr. Monica Passi, MD

Gastroenterologist
4.86
·111 reviews
Great experience the doctor was very knowledgeable and friendly. - Oct 7, 2025 by Vecoya B.Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in acute gastrointestinal bleeding + 5 more ·
Read bio
Dr. Monica Passi is a distinguished gastroenterologist. She practices at the Gastro Center of MD and sees patients in Riverdale and Annapolis, MD.  Dr. Passi completed her medical degree from George Washington University and her internship in internal medicine at North Shore University Hospital. Sh...Click to read more
Next available: Thu, Oct 8

Dr. Shaffer Mok, MD

Gastroenterologist
4.93
·42 reviews
Great first visit. Very personable and seemed truly interested in helping! - Jun 8, 2026 by Howard S.Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 2 more ·
Read bio
Dr. Shaffer Mok is a skilled gastroenterologist. He practices at Gastro Center of MD in Owings Mills, Nottingham, and Lutherville Timonium, MD. With a patient-centered approach, Dr. Mok takes the time to understand each individual's symptoms, concerns, and lifestyle, fostering a trusting and collab...Click to read more
Next available: Thu, Oct 8

Dr. Pia Prakash, MD

Gastroenterologist
4.81
·304 reviews
Blew up phone with texts. Repeatedly for the same thing that had been completed on line. Stick with pen and paper - Jan 30, 2025Click to read more
14 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in colonoscopy + 3 more ·
Read bio
Dr. Pia Prakash completed her medical training in Washington, D.C. She received her Bachelor in Arts and Sciences from The George Washington University with a major in Psychology. She then attended the George Washington University School of Medicine where she received her medical degree and complete...Click to read more
Next available: Mon, Oct 12

Amelia Abban, NP

Nurse Practitioner
4.79
·876 reviews
Dr. Abban was super friendly and respectful. She was very efficient and made me feel comfortable. by Mikayla S.Click to read more
9 mi · 14502 Greenview Dr, Suite 545, Laurel, MD 20708
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Amelia Abban is a Board-Certified Family Nurse Practitioner with extensive experience in medical practice. She earned her master’s degree from Walden University and completed clinical training at Washington Medical Clinic. She has been providing quality and compassionate care to acute and non-acute ...Click to read more
Next available: Mon, Oct 5

Dr. Eduardo Castillo, MD

Gastroenterologist
4.88
·240 reviews
Dr. Castillo was extremely nice, patient and responsive to questions. - Jul 15, 2026 by Talitha S.Click to read more
14 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 2 more ·
Read bio
Serving the communities of Olney and Columbia, MD, Dr. Eduardo Castillo is an attending physician at Gastro Center of Maryland. An accomplished gastroenterologist, he looks forward to providing his patients with the proper tools and advice they need to improve or maintain their overall health. Dr...Click to read more
Next available: Tue, Oct 13

Dr. Urooj Ahmed, MD

Gastroenterologist
4.39
·38 reviews
Dr Ahmed was very attentive, patient and knowledgeable. He listened to my symptoms and concerns, before checking me and giving his expert opinion. When I shared with him I had lab appointment afterwards, he made me aware lab office was in-house, which was very convenient. I would recommend him to an...Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Expertise in upper gi endoscopy + 5 more ·
Read bio
Dr. Urooj Ahmed is a dedicated gastroenterologist practicing at the Gastro Center of MD, serving the communities of Columbia and Annapolis, MD. With extensive training and experience, Dr. Ahmed diagnoses and manages various gastrointestinal conditions to improve his patients' quality of life. Dr. A...Click to read more
Next available: Fri, Oct 9

Dr. Dhruv Lowe, MD

Gastroenterologist
4.88
·434 reviews
Dr. Lowe was great! He found a solution quickly. His office is nice and staff is welcoming!Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more
Next available: Fri, Oct 9

Kenderlate Arthus, FNP-C

Family Nurse Practitioner
4.89
·56 reviews
Very informative and educational about interim treatments and next steps - Feb 3, 2025 by Renee K.Click to read more
8.5 mi · 9101 Cherry Ln Suite 111, Laurel, MD 20708
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Ms. Kenderlate Arthus is an experienced and compassionate family nurse practitioner. She practices at Angel Eye Medical Primary Care Clinic in Laurel, MD, and also provides virtual consultations. Ms. Arthus earned her bachelor's degree from Coppin State University and completed her master's degree ...Click to read more
Next available: Tue, Oct 6

Jamee Searchwell, PA-C

Physician Assistant
6.5 mi · 315 H St NE, Ste A, Washington, DC 20002
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Jamee Searchwell is a skilled Physician Assistant at CloseKnit.Click to read more
Next available: Sun, Nov 8

Dr. Rudrajit Rai, MD, FACG

Gastroenterologist
4.67
·15 reviews
I enjoyed my visit. Dr. Rai is very patient, informative, caring and helpful. I love my doctor. by DRClick to read more
14 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Excellent wait time · Expertise in gastroenteritis + 9 more ·
Read bio
Dr. Rai is the Medical Director of Gastro Center of Maryland and Cascades Endoscopy Center. He is a Board-Certified Gastroenterologist and Hepatologist with over 20 years of experience. Dr. Rai completed his Bachelor of Medicine, Bachelor of Surgery at the All India Institute of Medical Sciences,...Click to read more
Next available: Tue, Oct 20

Dr. Dabo Xu, MD

Gastroenterologist
4.82
·431 reviews
Dr. Xu was great. Explained everything clearly. He was also compassionate and it felt like he cared about my well-being. by Jennifer C.Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 4 more
Next available: Tue, Oct 13

Dr. Monica Passi, MD

Gastroenterologist
4.86
·111 reviews
Great experience the doctor was very knowledgeable and friendly. - Oct 7, 2025 by Vecoya B.Click to read more
16 mi · 15225 Shady Grove Rd,, Ste 304, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in acute gastrointestinal bleeding + 5 more ·
Read bio
Dr. Monica Passi is a distinguished gastroenterologist. She practices at the Gastro Center of MD and sees patients in Riverdale and Annapolis, MD.  Dr. Passi completed her medical degree from George Washington University and her internship in internal medicine at North Shore University Hospital. Sh...Click to read more
Next available: Mon, Oct 5

Dr. Robert Byrne, MD

Gastroenterologist
4.65
·68 reviews
Amazing dr he's is very clear on his explanation of tings - Jan 22, 2026 by William M.Click to read more
14 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Robert Byrne is an experienced gastroenterologist who practices at the Gastro Center of MD. He offers services to people in Riverdale and Gaithersburg, MD. Dr. Byrne is committed to providing exceptional, patient-centered care for digestive and liver disorders. He listens to each patient and cr...Click to read more
Next available: Wed, Oct 21

Dr. Rushi Talati, MD

Gastroenterologist
4.92
·100 reviews
Great! Dr. Talati & staff were super helpful and thorough throughout my visit. Very polite, friendly environment. by OHClick to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Rushi Talati is an experienced gastroenterologist at Gastro Center of MD in Riverdale, Gaithersburg, and Olney, MD. He also offers services to people with digestive conditions that affect their quality of life. Dr. Talati understands patients' conditions and prepares individualized treatment pl...Click to read more
Next available: Wed, Oct 14

Dr. Thi Khuc, MD

Gastroenterologist
4.90
·230 reviews
Highly recommend Dr. Khuc. She was very knowledgeable and answered all of my questions.Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Thi Khuc is a skilled gastroenterologist currently practicing at the Gastro Center of MD in Columbia and Annapolis (MD). She is also certified by the American Board of Internal Medicine. After earning her medical degree from the University of Virginia, Dr. Khuc completed her internal medicine ...Click to read more
Next available: Thu, Oct 15

Dr. Charles Obioha, MD

Gastroenterologist
4.33
·449 reviews
Everything went well, the reception was good but the waiting was very long. - Mar 9, 2025 by HENRY M.Click to read more
15 mi · 9000 Woody Terrace, Clinton, MD 20735
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Expertise in gastroenteritis + 2 more ·
Read bio
When booking an appointment please make sure to indicate your insurance, provider, plan, and ID number available to enter. Thank you! Please note there are charges associated with cancellations made after 24 hours of initial booking. Please ensure that you are ready to be seen before confirmation of...Click to read more
Next available: Mon, Oct 12

Dr. Pia Prakash, MD

Gastroenterologist
4.81
·304 reviews
Blew up phone with texts. Repeatedly for the same thing that had been completed on line. Stick with pen and paper - Jan 30, 2025Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in colonoscopy + 3 more ·
Read bio
Dr. Pia Prakash completed her medical training in Washington, D.C. She received her Bachelor in Arts and Sciences from The George Washington University with a major in Psychology. She then attended the George Washington University School of Medicine where she received her medical degree and complete...Click to read more
Next available: Wed, Oct 21

Dr. Rushi Talati, MD

Gastroenterologist
4.92
·100 reviews
Great! Dr. Talati & staff were super helpful and thorough throughout my visit. Very polite, friendly environment. by OHClick to read more
16 mi · 15225 Shady Grove Rd,, Ste 304, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Rushi Talati is an experienced gastroenterologist at Gastro Center of MD in Riverdale, Gaithersburg, and Olney, MD. He also offers services to people with digestive conditions that affect their quality of life. Dr. Talati understands patients' conditions and prepares individualized treatment pl...Click to read more
Next available: Tue, Oct 6

Dr. Rushi Talati, MD

Gastroenterologist
4.92
·100 reviews
Great! Dr. Talati & staff were super helpful and thorough throughout my visit. Very polite, friendly environment. by OHClick to read more
14.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Rushi Talati is an experienced gastroenterologist at Gastro Center of MD in Riverdale, Gaithersburg, and Olney, MD. He also offers services to people with digestive conditions that affect their quality of life. Dr. Talati understands patients' conditions and prepares individualized treatment pl...Click to read more
Next available: Wed, Oct 21

Shumuel Ofosu-Koranteng, PA-C

Physician Assistant
8 mi · 811 2nd St SE, Ste 100, Washington,, DC 20003
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Shumuel Ofosu-Koranteng is a skilled Physician Assistant at CloseKnit.Click to read more
Next available: Sat, Oct 24

Dr. Neha Rajpal, MD

Gastroenterologist
5.00
·8 reviews
The entire office staff were amazing. Dr. Rajpal Listen to all my concerns & answered all my questions. I'm glad to see that, like me; she wants to get to the salutation to my problems. That something that could really put a mind to ease. by NGClick to read more
16 mi · 15225 Shady Grove Rd,, Ste 304, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Neha Rajpal is a gastroenterologist who sees patients in person at Gastro Centers of America in Silver Spring, Rockville, and Riverdale, MD. She provides care for individuals seeking evaluation and treatment of digestive health concerns. Dr. Rajpal completed her medical degree at Georgetown Uni...Click to read more
Next available: Thu, Oct 8

Chante' Whitaker, PA

Physician Assistant
5.00
·10 reviews
The team was very professional and friendly. I would recommend this team to a friend. I enjoyed the team listening and not rushing the appointment. I would go back and hopefully have a great experience as I did this first time.Click to read more
7.5 mi · 9500 Medical Center Dr, #105, Largo, MD 20774
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
I am a dedicated board-certified Physician Assistant specializing in primary care medicine at TRiiBE Medical LLC in Upper Marlboro, Maryland. With a strong commitment to providing quality healthcare for all individuals, I actively address health disparities within my local community. I earned my Bac...Click to read more
Next available: Mon, Nov 9

Dr. Thi Khuc, MD

Gastroenterologist
4.90
·230 reviews
Highly recommend Dr. Khuc. She was very knowledgeable and answered all of my questions.Click to read more
14.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Thi Khuc is a skilled gastroenterologist currently practicing at the Gastro Center of MD in Columbia and Annapolis (MD). She is also certified by the American Board of Internal Medicine. After earning her medical degree from the University of Virginia, Dr. Khuc completed her internal medicine ...Click to read more
Next available: Mon, Oct 26

Dr. Jennie Zhang, DO

Gastroenterologist
4.68
·38 reviews
Dr Jennie is wonderful. A great listener and wrote down all of her directions for me. Best doctor I have! - Feb 10, 2026 by David W.Click to read more
16 mi · 15225 Shady Grove Rd,, Ste 304, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Jennie Zhang is a distinguished gastroenterologist. She practices at the Gastro Center of MD, serving patients in Silver Spring, Riverdale, and Olney, MD. Dr. Zhang completed her medical degree at the West Virginia School of Osteopathic Medicine and her residency in internal medicine at the Uni...Click to read more
Next available: Fri, Oct 9

Dr. Robert Byrne, MD

Gastroenterologist
4.65
·68 reviews
Amazing dr he's is very clear on his explanation of tings - Jan 22, 2026 by William M.Click to read more
16 mi · 15225 Shady Grove Rd,, Ste 304, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Robert Byrne is an experienced gastroenterologist who practices at the Gastro Center of MD. He offers services to people in Riverdale and Gaithersburg, MD. Dr. Byrne is committed to providing exceptional, patient-centered care for digestive and liver disorders. He listens to each patient and cr...Click to read more
Next available: Thu, Oct 8

Dr. Monica Passi, MD

Gastroenterologist
4.86
·111 reviews
Great experience the doctor was very knowledgeable and friendly. - Oct 7, 2025 by Vecoya B.Click to read more
14.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in acute gastrointestinal bleeding + 5 more ·
Read bio
Dr. Monica Passi is a distinguished gastroenterologist. She practices at the Gastro Center of MD and sees patients in Riverdale and Annapolis, MD.  Dr. Passi completed her medical degree from George Washington University and her internship in internal medicine at North Shore University Hospital. Sh...Click to read more
Next available: Wed, Oct 28

Dr. Raymond Richhart, MD

Gastroenterologist
5.00
·8 reviews
Dr. Richhart was wonderful! Very kind and took time to listen to me and explain reasons for symptoms, the treatment plan and more. Everyone at the office was also extremely kind!Click to read more
16 mi · 15225 Shady Grove Rd,, Ste 304, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Raymond Richhart is a gastroenterologist who sees patients at Gastro Centers of America in Silver Spring, Rockville, and Riverdale, MD. He provides care for individuals seeking evaluation and support for digestive health concerns. Dr. Richhart earned his medical degree from the University of Vi...Click to read more
Next available: Thu, Oct 15

Amelia Terenzio, APRN

Adult Nurse Practitioner
12 mi · 5275 Langston Blvd, Ste 302, Arlington, VA 22207
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Doctorally-prepared Adult Nurse Practitioner and nurse educator with 30+ years of progressive experience in primary care, specialty practice, staff development, and academic instruction. Board-certified with active multi-state licensure; proven record precepting NP/DNP students, building clinical ed...Click to read more
Next available: Wed, Oct 7

Melissa Nickols, PA

Physician Assistant (Gastroenterology)
4.94
·16 reviews
Excellent at making me feel comfortable and understanding next steps!! - Apr 22, 2026 by Sally N.Click to read more
16 mi · 15225 Shady Grove Rd,, Ste 304, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Ms. Melissa Nickols is an experienced physician assistant who specializes in gastroenterology. She is based out of Maryland and offers in-person services at Gastro Center of MD in Silver Spring, Riverdale, and Gaithersburg. As part of her formal education, Ms. Nickols acquired a master's degree in ...Click to read more
Next available: today

Christina Sasselli, NP

Nurse Practitioner
5.00
·2 reviews
16.5 mi · 10110 Molecular Dr, Ste 209, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Christina Sasselli, CRNP, is a board-certified Family Nurse Practitioner committed to delivering compassionate, holistic, and patient-centered care. She earned her Master of Science in Nursing (MSN) from Duquesne University in Pittsburgh and her Bachelor of Science in Nursing (BSN) from Chamberlain ...Click to read more
Next available: today

Dr. Robert Byrne, MD

Gastroenterologist
4.65
·68 reviews
Amazing dr he's is very clear on his explanation of tings - Jan 22, 2026 by William M.Click to read more
19 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Robert Byrne is an experienced gastroenterologist who practices at the Gastro Center of MD. He offers services to people in Riverdale and Gaithersburg, MD. Dr. Byrne is committed to providing exceptional, patient-centered care for digestive and liver disorders. He listens to each patient and cr...Click to read more
Next available: Thu, Oct 15

Milivoj Vojteh, PA-C

Physician Assistant
17.5 mi · 8205 Snowden River Pkwy, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Licensed PA-C, graduated from Lake Erie College for my master's in physician assistant studies. Certified by NCCPA. 2 years of experience in acute care medicine treating immediate injury but also follow up chronic care. Able to treat a wide range of illnesses for all age groups. Passionate about ove...Click to read more
Next available: today

Dr. Dhruv Lowe, MD

Gastroenterologist
4.88
·434 reviews
Dr. Lowe was great! He found a solution quickly. His office is nice and staff is welcoming!Click to read more
19 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more
Next available: Mon, Oct 19

Dr. Jennie Zhang, DO

Gastroenterologist
4.68
·38 reviews
Dr Jennie is wonderful. A great listener and wrote down all of her directions for me. Best doctor I have! - Feb 10, 2026 by David W.Click to read more
19 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Dr. Jennie Zhang is a distinguished gastroenterologist. She practices at the Gastro Center of MD, serving patients in Silver Spring, Riverdale, and Olney, MD. Dr. Zhang completed her medical degree at the West Virginia School of Osteopathic Medicine and her residency in internal medicine at the Uni...Click to read more
Next available: Wed, Oct 28

Deidre Ann Fisher, FNP

Family Nurse Practitioner
5.00
·7 reviews
I had such a great experience with Deidre Fisher! She is an incredible listener and makes you feel genuinely heard and comfortable throughout the entire appointment. She never makes you feel rushed and takes the time to explain everything thoroughly, making sure you understand what’s going on. I als...Click to read more
16.5 mi · 10110 Molecular Dr, Ste 209, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Deidre Fisher, MSN, APRN, FNP-C, is a Family Nurse Practitioner with a 30-year career dedicated to patient care. Her journey in nursing began after graduating with a Bachelor of Science in Nursing from the University of Delaware, where she also participated in ARMY ROTC. Following her education, Dei...Click to read more
Next available: today

Hannah Clevenger, NP

Nurse Practitioner (Gastroenterology)
4.98
·41 reviews
The office and staff was very nice. We got straight into action for needed testing so I’m thankful! - Aug 24, 2026 by Claudette R.Click to read more
14.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time
Next available: Fri, Oct 9

Dr. Kirsti Campbell, MD

Gastroenterologist
4.87
·47 reviews
All around great professional experience. I’m glad I chose this doctor and this clinic. - Sep 24, 2026 by Clifford C.Click to read more
24 mi · 12011 US 50, Ste 506, Fairfax, VA 22033
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Kirsti Campbell is a gastroenterologist who sees patients in Falls Church, Fairfax, and Alexandria, VA. She offers in-office consultations at Gastro Virginia. She works with individuals seeking evaluation and care for digestive health concerns, from new symptoms to ongoing gastrointestinal condi...Click to read more
Next available: Wed, Oct 7

James Amara, NP, APRN

Family Nurse Practitioner (Virtual)
Gaithersburg, MD
In-network · UnitedHealthcare
Accepting new patients · Offers video visits ·
Read bio
James Amara, FNP-BC is a board-certified Family Nurse Practitioner providing modern, patient-centered telehealth care. His practice focuses on primary care, kidney health, blood pressure management, and weight loss, helping patients manage both acute concerns and chronic conditions effectively. Wit...Click to read more
Next available: tomorrow

Dr. Avni Jain, MD

Family Physician
4.74
·31 reviews
16.5 mi · 10110 Molecular Dr, Ste 209, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · 24 years of experience · Highly recommended · Excellent wait time · Expertise in underactive thyroid + 4 more ·
Read bio
Avni Jain, MD, FAAFP is board-certified in family medicine and obesity medicine. She is a dedicated and compassionate physician with a passion for helping individuals and families achieve their optimal health and well-being. As a board-certified Family and Obesity Medicine specialist, she brings a u...Click to read more
Next available: Mon, Nov 2

Dr. Bonnie Franckowiak, DNP, FNP-BC

Family Nurse Practitioner
5.00
·1 review
16.5 mi · 9650 Santiago Rd, Ste 7, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Thank you for booking with us. NOTE: There is a $75 no-show and late-cancellation fee in place. Bonnie A. Franckowiak, DNP, FNP-BC, is a board-certified Family Nurse Practitioner and accomplished nursing educator with over three decades of clinical and academic experience. She earned her Doctor of ...Click to read more

Juliana Samar, PA-C

Physician Assistant
5.00
·1 review
24.5 mi · 3903 Fair Rdg Dr, Ste 218, Fairfax, VA 22033
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Juliana Samar, PA-C, DMSc, is a highly trained physician assistant at Prima Medicine with a strong foundation in primary care, dermatology, preventive medicine, and patient-centered chronic disease management. She earned her Doctorate in Medical Science from Shenandoah University and completed advan...Click to read more
Next available: today

Dr. Lance Lasner, MD

Gastroenterologist
4.79
·39 reviews
Dr. Lasner was very personable and listened intently to my concerns. He was forthright and advocated for me to get a screening for my symptoms. I haven't had my screening yet, but overall I was hopeful that I was going to be able to get some additional diagnostics after a description of my symptoms ...Click to read more
29 mi · 5651 Stone Rd, Centreville,, VA 20120
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Highly recommended · Expertise in colonoscopy + 2 more ·
Read bio
Dr. Lance Lasner is one of a select few doctors to receive the Vitals® Patients’ Choice and the Vitals Compassionate Doctor awards for five consecutive years. He brings over 25 years of experience to his role as a gastroenterologist at Northern Virginia Gastroenterology, P.C. Dr. Lasner earned hi...Click to read more
Next available: Mon, Oct 5

Dr. Shaffer Mok, MD

Gastroenterologist
4.93
·42 reviews
Great first visit. Very personable and seemed truly interested in helping! - Jun 8, 2026 by Howard S.Click to read more
30.5 mi · 21 Crossroads Dr, Ste 205, Owings Mills, MD 21117
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 2 more ·
Read bio
Dr. Shaffer Mok is a skilled gastroenterologist. He practices at Gastro Center of MD in Owings Mills, Nottingham, and Lutherville Timonium, MD. With a patient-centered approach, Dr. Mok takes the time to understand each individual's symptoms, concerns, and lifestyle, fostering a trusting and collab...Click to read more
Next available: Wed, Oct 7

Courtney Ngo, NP

Nurse Practitioner (Gastroenterology)
4.93
·103 reviews
I highly recommend Courtney! She was warm, a great listener, and very thorough. I’ve had so many rushed experiences with doctors who just want to hand me a new prescription and send me on my way, but Courtney was willing to be a detective to help me investigate the root causes of issues I’ve been st...Click to read more
25.5 mi · 46169 Westlake Dr, Ste 200, Sterling, VA 20165
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
*$75 cancellation fee if cancelled within 48 hours of the appointment* Courtney Ngo, MSN, FNP-C, is a board-certified family nurse practitioner committed to providing patient-centered, quality care. She earned her bachelor's degree from Virginia Tech and completed her master's in nursing at The Geo...Click to read more
Next available: Mon, Oct 5

Maria Layao, NP

Nurse Practitioner (Gastroenterology)
4.94
·82 reviews
I was seen on time and the provider was attentive and helpful.Click to read more
25.5 mi · 46169 Westlake Dr, Ste 200, Sterling, VA 20165
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
*$75 cancellation fee if cancelled within 48 hours of the appointment* Maria Layao FNP-BC is a dedicated and compassionate nurse practitioner who cares for patients with Crohn’s disease, ulcerative colitis, infectious colitis, GERD, Barrett’s esophagus, viral hepatitis, liver disease, and many othe...Click to read more
Next available: Wed, Oct 7

Dr. Alexander Mamunes, MD

Gastroenterologist
4.92
·216 reviews
Very fast, listens wells, and the staff was friendly and willing to give steps and explanation. by APClick to read more
34.5 mi · 1212 York Rd, Ste B201, Lutherville Timonium, MD 21093
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Alexander Mamunes is a reliable and accomplished internist. Catering to the people of Columbia and Timonium, MD, he works at the Gastro Center of MD, treating various complex chronic disorders in adults. As a part of his educational training, Dr. Mamunes acquired his medical degree from the Un...Click to read more
Next available: today
Calendar Check
1-3 days

Average time it takes to be seen by a provider

Doctor
100k

Verified providers with a 4.8 average rating

Primary Care Physician
15+ years

In the business of finding quality care for patients

Patients trust Zocdoc
wish I would have found this dentist sooner highly recommend. Thanks Zocdoc
Stefan M
Easy same day appointment and was able to pick up my prescription within an hour of finishing my visit. Highly recommend
Jordan M
10/10!!!! I woke up on Sunday with severe wisdom tooth pain. I was able to make an early appointment Monday morning...So so happy with my experience!
Lauren K
National Public Radio
New York Times
Yahoo
Self.com
Verge
Wall Street Journal
Frequently asked questions

How can I make a same-day appointment with a Gastroenterologist in College Park who takes UnitedHealthcare insurance?

On average, patients who use Zocdoc can search for a Gastroenterologist in College Park who takes UnitedHealthcare insurance, book an appointment, and see the Gastroenterologist within 24 hours. Same-day appointments are often available, you can search for real-time availability of Gastroenterologists in College Park who accept UnitedHealthcare insurance and make an appointment online.

How can I find a Gastroenterologist in College Park who takes UnitedHealthcare?

Zocdoc lets you search specifically for a Gastroenterologist in College Park who takes UnitedHealthcare. Just choose your carrier and plan from the drop-down menu at the top of the page. If you’re not sure which plan you have, you can use Zocdoc’s insurance checker to find out.

How can I book an appointment online with a UnitedHealthcare Gastroenterologist in College Park?

Zocdoc is a free online service that helps patients find UnitedHealthcare Gastroenterologists in College Park and book appointments instantly. You can search for UnitedHealthcare Gastroenterologists in College Park by symptom or visit reason. Based on that information, you’ll see a list of providers who meet your search criteria, along with their available appointment slots.

How can I find a female Gastroenterologist in College Park who takes UnitedHealthcare insurance?

When you search for UnitedHealthcare Gastroenterologists in College Park on Zocdoc, you can filter your results by gender, in addition to other criteria. That way, you’ll only see UnitedHealthcare Gastroenterologists in College Park who match your preferences.

How can I find a UnitedHealthcare Gastroenterologist in College Park who sees patients after hours?

On Zocdoc, you can search specifically for UnitedHealthcare Gastroenterologists in College Park with availability after 5 p.m.

How can I find a top-rated UnitedHealthcare Gastroenterologist in College Park?

You can use Zocdoc to find UnitedHealthcare Gastroenterologists in College Park who are highly rated by other patients. These ratings are based on verified reviews submitted by real patients. Every time a patient completes an appointment booked on Zocdoc, they’re invited to review their experience. Each review must comply with Zocdoc’s guidelines.

How can I find a video visit with a Gastroenterologist online in College Park?

Gastroenterologists in College Park on Zocdoc who see patients through online video visits will have a purple video icon on their profiles. You can also filter your search results to show only Gastroenterologists who offer video visits.

Are video visits with a Gastroenterologist online covered by UnitedHealthcare?

Most insurers provide coverage for video visits at the same cost as in-person visits. You can search on Zocdoc specifically for Gastroenterologists in College Park who accept UnitedHealthcare for video visits by selecting your carrier and plan from the drop-down menu at the top of the page. We recommend you check with your insurance carrier directly to confirm your coverage and out of pocket costs for video visits.

How can I find a UnitedHealthcare Gastroenterologist in College Park who sees patients in the morning or evening?

Zocdoc lets you search specifically for a Gastroenterologist who has appointments available before 10:00 am, or after 5:00 pm. Just choose the special hours filter at the top of our search page.

How can I find a UnitedHealthcare Gastroenterologist in College Park who sees patients during the weekend?

Zocdoc let's you see real-time availability for UnitedHealthcare Gastroenterologists in College Park. Many UnitedHealthcare Gastroenterologists offer appointments on Saturdays and Sundays.

Find doctors

        Zocdoc›Gastroenterologists›Baltimore, MD›College Park, MD›UnitedHealthcare