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254 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 06/29/2026
Availability last updated 06/29/2026

Chante' Whitaker, PA

Physician Assistant (Virtual)
5.00
·3 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
Largo, MD
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · 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

Dr. Jennie Zhang, DO

Gastroenterologist
4.61
·31 reviews
Dr. Zhang was pleasant to speak with and thorough in her professionalism. I feel comfort being in her care. - May 12, 2026 by Katherine H.Click to read more
14 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
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

Dr. Rudrajit Rai, MD, FACG

Gastroenterologist
4.62
·13 reviews
very professional and thorough. listened and asked questions by Hermione C.Click 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

Dr. Robert Byrne, MD

Gastroenterologist
4.65
·65 reviews
Great Doctor Who listens to his patients and explains things quite succinctly. - Oct 14, 2025 by Richard G.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

Dr. Han Ton-That, MD

Gastroenterologist
4.75
·289 reviews
I was able to get in for an appointment within two days. The doctor was awesome, and he addressed all of my concerns. - Apr 3, 2021 by Natalie M.Click to read more
14 mi · 6305 Castle Place, Ste 1-A, Falls Church, VA 22044
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience · Excellent wait time · Expertise in chronic indigestion without clear cause + 2 more ·
Read bio
Han Ton-That is an attentive and precise gastroenterologist serving his patients in Falls Church, VA. Dr. Ton-That is certified by the American Board of Gastroenterology, and he is a member of the American Society for Gastrointestinal Endoscopy and the American Gastroenterological Association. Dr....Click to read more

Dr. Rudrajit Rai, MD, FACG

Gastroenterologist
4.62
·13 reviews
very professional and thorough. listened and asked questions by Hermione C.Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
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

Dr. Monica Passi, MD

Gastroenterologist
4.83
·96 reviews
The overall trip was a good experience. The dr listen to me and developed a treatment plan - Apr 23, 2026 by Johnnie W.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

Dr. Alexander Mamunes, MD

Gastroenterologist
4.92
·204 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

Dr. Joshua Rosenbloom, DO

Gastroenterologist
4.83
·303 reviews
All of my needs were addressed with nurturing and educating - Feb 3, 2023 by Dax A.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 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

Dr. Monica Passi, MD

Gastroenterologist
4.83
·96 reviews
The overall trip was a good experience. The dr listen to me and developed a treatment plan - Apr 23, 2026 by Johnnie W.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

Dr. Rushi Talati, MD

Gastroenterologist
4.94
·86 reviews
Dr.Talati is a great doctor! He's terrific, you won't be disappointed! by NSClick 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

Dr. Farzin Rashti, MD

Gastroenterologist
4.92
·533 reviews
Great experience very friendly, knowledgeable staff. Would definitely recommend to anyone looking for a G.I. doctor. - May 16, 2023 by Gary N.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

Dr. Dabo Xu, MD

Gastroenterologist
4.81
·422 reviews
Dr Xu is excellent and very informative. He is extremely thorough and makes clear decisions on next steps. - Jun 30, 2023 by Michael O.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 timeExpertise in upper gi endoscopy + 4 more

Dr. Eduardo Castillo, MD

Gastroenterologist
4.87
·227 reviews
Great staff. Excellent conversation about my symptoms and steps to diagnose. Felt very comfortable. Would recommend. - Jun 13, 2024 by Robert M.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 · 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

Dr. Pia Prakash, MD

Gastroenterologist
4.82
·297 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 · 7130 Minstrel Way, Ste 215, 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

Dr. Dhruv Lowe, MD

Gastroenterologist
4.88
·417 reviews
Dr. Lowe made me feel heard and validated. This is priceless when you’re autistic like me. - Aug 27, 2025 by Stephanie B.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 timeExpertise in upper gi endoscopy + 2 more

Dr. Bridgette Provost, MD

Internist
5.00
·3 reviews
8.5 mi · 7137 Arlington Rd, Bethesda, MD 20814
In-network · UnitedHealthcare
Accepting new patients · 16 years of experience · Highly recommended · Excellent wait time ·
Read bio
Dr. Bridgette C. Provost is a highly accomplished physician with a diverse background in multiple medical specialties, focusing on integrative medicine and holistic care. She is dedicated to providing comprehensive health care and addressing health disparities. Driven by a passion for improving heal...Click to read more

Carlos Olivares, RN, APRN

Family Nurse Practitioner
4.67
·15 reviews
8.5 mi · 7137 Arlington Rd, Bethesda, MD 20814
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
Carlos Olivares, NP, earned his Bachelors of Science in Nursing from Kaplan University in 2012 and then went on to complete his Master's of Science in Nursing from Bowie State University in 2015. His experience as a family nurse practitioner includes emergency and urgent care as well as family healt...Click to read more

Dr. Rushi Talati, MD

Gastroenterologist
4.94
·86 reviews
Dr.Talati is a great doctor! He's terrific, you won't be disappointed! by NSClick to read more
16 mi · 15255 Shady Grove Rd, Suite 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

Dr. Monica Passi, MD

Gastroenterologist
4.83
·96 reviews
The overall trip was a good experience. The dr listen to me and developed a treatment plan - Apr 23, 2026 by Johnnie W.Click to read more
16 mi · 15255 Shady Grove Rd, Suite 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

Dr. Robert Byrne, MD

Gastroenterologist
4.65
·65 reviews
Great Doctor Who listens to his patients and explains things quite succinctly. - Oct 14, 2025 by Richard G.Click to read more
16 mi · 15255 Shady Grove Rd, Suite 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

Dr. Dhruv Lowe, MD

Gastroenterologist
4.88
·417 reviews
Dr. Lowe made me feel heard and validated. This is priceless when you’re autistic like me. - Aug 27, 2025 by Stephanie B.Click to read more
16 mi · 15255 Shady Grove Rd, Suite 304, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more

Dr. Jennie Zhang, DO

Gastroenterologist
4.61
·31 reviews
Dr. Zhang was pleasant to speak with and thorough in her professionalism. I feel comfort being in her care. - May 12, 2026 by Katherine H.Click to read more
16 mi · 15255 Shady Grove Rd, Suite 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

Dr. Rushi Talati, MD

Gastroenterologist
4.94
·86 reviews
Dr.Talati is a great doctor! He's terrific, you won't be disappointed! by NSClick to read more
19 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
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

Dr. Jennie Zhang, DO

Gastroenterologist
4.61
·31 reviews
Dr. Zhang was pleasant to speak with and thorough in her professionalism. I feel comfort being in her care. - May 12, 2026 by Katherine H.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

Dr. Khalid Alkimawi, MD, FACP

Gastroenterologist
4.58
·43 reviews
He listened to my concerns and gave multiple options on how to move forwardClick to read more
19 mi · 2557 Chain Bridge Rd, Vienna, VA 22181
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Excellent wait time · Expertise in upper gi endoscopy + 1 more ·
Read bio
**DISCLAIMER: After scheduling, you will receive intake forms via your patient portal or email. Prompt completion and submission of these documents is required. This step is essential for our clinical team to complete the necessary preparations for your appointment and to ensure your visit begins on...Click to read more

Dr. Khalid Alkimawi, MD, FACP

Gastroenterologist
4.58
·43 reviews
He listened to my concerns and gave multiple options on how to move forwardClick to read more
19 mi · 2557 Chain Bridge Rd, Vienna, VA 22181
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Excellent wait time · Expertise in upper gi endoscopy + 1 more ·
Read bio
**DISCLAIMER: After scheduling, you will receive intake forms via your patient portal or email. Prompt completion and submission of these documents is required. This step is essential for our clinical team to complete the necessary preparations for your appointment and to ensure your visit begins on...Click to read more

Xinna Yi, APRN, RN, NP

Nurse Practitioner (Gastroenterology)
5.00
·1 review
14 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Xinna Yi is a board-certified Family Nurse Practitioner with a Master of Science in Nursing from Wilkes University, which she completed in 2023. She brings a wealth of experience from her work in a family practice clinic and her previous role as a registered nurse specializing in cardiology. Before ...Click to read more

Monica Lovins, NP

Nurse Practitioner (Gastroenterology)
4.78
·18 reviews
14 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time

Emily Ohland, PA-C

Physician Assistant (Gastroenterology)
4.56
·9 reviews
14 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · UnitedHealthcare
Accepting new patients

Hannah Clevenger, NP

Nurse Practitioner (Gastroenterology)
5.00
·29 reviews
Dr. Clevenger is wonderful and a great listener, helped me with problems i've been having for over a decade! - May 5, 2026Click to read more
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended

Monica Lovins, NP

Nurse Practitioner (Gastroenterology)
4.78
·18 reviews
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time

Emily Ohland, PA-C

Physician Assistant (Gastroenterology)
4.56
·9 reviews
14.5 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients

Emily Ohland, PA-C

Physician Assistant (Gastroenterology)
4.56
·9 reviews
14.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients

Monica Lovins, NP

Nurse Practitioner (Gastroenterology)
4.78
·18 reviews
14.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time

Melissa Nickols, PA

Physician Assistant (Gastroenterology)
4.86
·7 reviews
It was easy to find a doctor and fast as i need it. by Ervin A.Click to read more
16 mi · 15255 Shady Grove Rd, Suite 304, Rockville, MD 20850
In-network · UnitedHealthcare
Accepting new patients · 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

Dr. Thi Khuc, MD

Gastroenterologist
4.89
·226 reviews
Dr Khuc was absolutely wonderful! She explained everything clearly, offered guidance and support. Great Office. - Mar 26, 2025 by Daniel D.Click to read more
23 mi · 1419 Forest Dr, Annapolis, MD 21403
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

Dr. Monica Passi, MD

Gastroenterologist
4.83
·96 reviews
The overall trip was a good experience. The dr listen to me and developed a treatment plan - Apr 23, 2026 by Johnnie W.Click to read more
23 mi · 1419 Forest Dr, Annapolis, MD 21403
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

Dr. Farzin Rashti, MD

Gastroenterologist
4.92
·533 reviews
Great experience very friendly, knowledgeable staff. Would definitely recommend to anyone looking for a G.I. doctor. - May 16, 2023 by Gary N.Click to read more
23 mi · 1419 Forest Dr, Annapolis, MD 21403
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

Dr. Rudrajit Rai, MD, FACG

Gastroenterologist
4.62
·13 reviews
very professional and thorough. listened and asked questions by Hermione C.Click to read more
23 mi · 1419 Forest Dr, Annapolis, MD 21403
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

Dr. Urooj Ahmed, MD

Gastroenterologist
4.37
·35 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
23 mi · 1419 Forest Dr, Annapolis, MD 21403
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

Dr. Dhruv Lowe, MD

Gastroenterologist
4.88
·417 reviews
Dr. Lowe made me feel heard and validated. This is priceless when you’re autistic like me. - Aug 27, 2025 by Stephanie B.Click to read more
23 mi · 1419 Forest Dr, Annapolis, MD 21403
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more

Dr. Eduardo Castillo, MD

Gastroenterologist
4.87
·227 reviews
Great staff. Excellent conversation about my symptoms and steps to diagnose. Felt very comfortable. Would recommend. - Jun 13, 2024 by Robert M.Click to read more
23 mi · 1419 Forest Dr, Annapolis, MD 21403
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

Diviya Muruganandam, PA-C

Physician Assistant
4.31
·29 reviews
Great staff! Provider listened to my concerns and went above and beyond to ensure we explored multiple possibilities regarding my health. - Mar 14, 2023Click to read more
16.5 mi · 2070 Chain Bridge Rd, Ste 150, Vienna, VA 22182
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Diviya Muruganandam, PA-C, is a board-certified physician assistant at Virginia Family Medicine’s Tysons and Fairfax locations. She earned her Master’s in Physician Assistant Studies from Wingate University in North Carolina, graduating with high distinction (Pi Alpha, The National Honors Society of...Click to read more

Xinna Yi, APRN, RN, NP

Nurse Practitioner (Gastroenterology)
5.00
·1 review
19 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Xinna Yi is a board-certified Family Nurse Practitioner with a Master of Science in Nursing from Wilkes University, which she completed in 2023. She brings a wealth of experience from her work in a family practice clinic and her previous role as a registered nurse specializing in cardiology. Before ...Click to read more

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

Diviya Muruganandam, PA-C

Physician Assistant
4.31
·29 reviews
Great staff! Provider listened to my concerns and went above and beyond to ensure we explored multiple possibilities regarding my health. - Mar 14, 2023Click to read more
19.5 mi · 9401 Lee Hwy, Ste 400, Fairfax, VA 22031
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
Diviya Muruganandam, PA-C, is a board-certified physician assistant at Virginia Family Medicine’s Tysons and Fairfax locations. She earned her Master’s in Physician Assistant Studies from Wingate University in North Carolina, graduating with high distinction (Pi Alpha, The National Honors Society of...Click to read more

Monica Lovins, NP

Nurse Practitioner (Gastroenterology)
4.78
·18 reviews
23 mi · 1419 Forest Dr, Annapolis, MD 21403
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time

Emily Ohland, PA-C

Physician Assistant (Gastroenterology)
4.56
·9 reviews
23 mi · 1419 Forest Dr, Annapolis, MD 21403
In-network · UnitedHealthcare
Accepting new patients

Dr. Alexander Mamunes, MD

Gastroenterologist
4.92
·204 reviews
Very fast, listens wells, and the staff was friendly and willing to give steps and explanation. by APClick 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 ·
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

Dr. Rashika Sood, MD

Internist
4.45
·1410 reviews
Dr Rashika is amazing and had a lot of compassion for her patients. Best doctor I've had. - Aug 28, 2018 by Wadzanai K.Click to read more
24 mi · 1521 S Edgewood Street, Suite K, Baltimore, MD 21227
In-network · UnitedHealthcare
Accepting new patients · Expertise in high cholesterol + 2 more ·
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**(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

Courtney Ngo, NP

Nurse Practitioner (Gastroenterology)
4.92
·71 reviews
The office was very nice—clean, comfortable, and welcoming. The doctor was also very nice and extremely informative. I felt well cared for and appreciated the time taken to explain everything clearly. - Nov 26, 2025 by AYLA M.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 ·
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*$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

Maria Layao, NP

Nurse Practitioner (Gastroenterology)
4.94
·64 reviews
Definitely would go back, great office and great staff. - Jan 19, 2026 by Petrolla K.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 ·
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*$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

Wendy Roberts, APRN

Adult Nurse Practitioner
25.5 mi · 21631 Ridgetop Cir, Ste 155, Sterling, VA 20166
In-network · UnitedHealthcare
Accepting new patients ·
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Wendy is a certified and licensed Adult Nurse Practitioner with over 15 years of clinical experience. She holds a Bachelor's degree in Nursing from Georgetown University and a Master's in Nursing from The Catholic University of America. Wendy brings a holistic approach to wellness with a strong back...Click to read more

Francisca Nwaigwe, NP

Nurse Practitioner
27.5 mi · 218 E Lexington St, Ste 200, Baltimore, MD 21202
In-network · UnitedHealthcare
Also offers video visitsAccepting new patients
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

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Frequently asked questions

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

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

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

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

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

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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?

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

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