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

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250 verified Wellpoint (formerly Amerigroup) Gastroenterologists in Rockville, 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 11/02/2026
Availability last updated 11/02/2026

Dr. Elizabeth Obi, DNP, CRNP

Family Nurse Practitioner (Virtual)
4.15
·894 reviews
Dr. Obi was informative, friendly and thorough. Her office staff was helpful and welcoming. - Dec 30, 2023 by Kali W.Click to read more
Silver Spring, MD
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Offers video visits ·
Read bio
Dr. Elizabeth Obi, DNP, has acquired more than 20 years of professional experience. She earned her Doctor of Nursing Practice from Chamberlain University and completed her Family Nursing education at Mountain State University. At Washington Medical Clinic LLC, we care for children, adults, and the e...Click to read more
Next available: Wed, Nov 11

Dr. Rushi Talati, MD

Gastroenterologist
4.92
·104 reviews
Dr. Talati is smart, kind, empathetic, an excellent listener, and gives terrific advice. We love thim in our family! by RJClick to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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: Fri, Nov 6

Dr. Farzin Rashti, MD

Gastroenterologist
4.90
·553 reviews
Dr. Rashti is very easy going and knowledable, and wonderful staff! by BTClick to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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: Mon, Nov 9

Dr. Eduardo Castillo, MD

Gastroenterologist
4.88
·242 reviews
Very quick, little wait time, overall good experience - Feb 2, 2022 by James G.Click to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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: Mon, Nov 9

Dr. Thi Khuc, MD

Gastroenterologist
4.90
·232 reviews
The doctor was great very informative very through very easy to talk to. - Oct 28, 2023 by Regina O.Click to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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: Tue, Nov 10

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
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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: Tue, Nov 10

Dr. Joshua Rosenbloom, DO

Gastroenterologist
4.82
·319 reviews
Dr Rosenbloom is very kind. He listens and makes very reasonable suggestions. - Jun 27, 2025 by Jennifer E.Click to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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, Nov 10

Dr. Alexander Mamunes, MD

Gastroenterologist
4.92
·218 reviews
Dr Mamunes was great, very thorough, kind, and receptive to my suggestions/thoughts - Jul 15, 2025 by Camille C.Click to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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: Wed, Nov 11

Dr. Dhruv Lowe, MD

Gastroenterologist
4.87
·435 reviews
Highly recommend Dr. Lowe! Consummate professional, good listener, kind, and expert knowledge. - Jul 22, 2024 by Seth R.Click to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more
Next available: Fri, Nov 13

Dr. Thi Khuc, MD

Gastroenterologist
4.90
·232 reviews
The doctor was great very informative very through very easy to talk to. - Oct 28, 2023 by Regina O.Click to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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, Nov 12

Dr. Shaffer Mok, MD

Gastroenterologist
4.83
·46 reviews
Great first visit. Very personable and seemed truly interested in helping! - Jun 8, 2026 by Howard S.Click to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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: Fri, Nov 13

Dr. Rushi Talati, MD

Gastroenterologist
4.92
·104 reviews
Dr. Talati is smart, kind, empathetic, an excellent listener, and gives terrific advice. We love thim in our family! by RJClick to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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, Nov 18

Dr. Monica Passi, MD

Gastroenterologist
4.83
·118 reviews
Very friendly and inviting staff! I would highly recommend to those who get more nervous around doctor's visits because they make sure you're doing well. Also, Dr. Passi was very sweet and understanding. Really great communicator and helped me understand what treatments I may need. Overall, great ex...Click to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
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, Nov 19

Dr. Dabo Xu, MD

Gastroenterologist
4.82
·432 reviews
Appointment is very professional and doctor and staff are all very nice and friendly. Clear communication and diagnosis. - Jan 31, 2023 by Yi L.Click to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 4 more
Next available: Tue, Nov 24

Melissa Nickols, PA

Physician Assistant (Gastroenterology)
4.95
·19 reviews
I would definitely recommend my PA MELISSA To a friend. She was very thorough and extremely helpful and nice! - Mar 20, 2026 by Gloria G.Click to read more
15 mi · 6502 Kenilworth Ave, Ste 100, Riverdale, MD 20737
In-network · Wellpoint (formerly Amerigroup)
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: Mon, Nov 9

Hannah Clevenger, NP

Nurse Practitioner (Gastroenterology)
4.98
·41 reviews
My nurse practitioner was a very good listener and the medical assistant also took my vitals before I saw the NP. - Sep 21, 2026 by lizabeth S.Click to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait time
Next available: Fri, Nov 6

Dr. Shaffer Mok, MD

Gastroenterologist
4.83
·46 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 · Wellpoint (formerly Amerigroup)
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, Nov 4

Dr. Shaffer Mok, MD

Gastroenterologist
4.83
·46 reviews
Great first visit. Very personable and seemed truly interested in helping! - Jun 8, 2026 by Howard S.Click to read more
37 mi · 1212 York Rd, Ste B201, Lutherville Timonium, MD 21093
In-network · Wellpoint (formerly Amerigroup)
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, Nov 5

Dr. Joshua Rosenbloom, DO

Gastroenterologist
4.82
·319 reviews
Dr Rosenbloom is very kind. He listens and makes very reasonable suggestions. - Jun 27, 2025 by Jennifer E.Click to read more
37 mi · 1212 York Rd, Ste B201, Lutherville Timonium, MD 21093
In-network · Wellpoint (formerly Amerigroup)
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: Thu, Nov 5

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
35.5 mi · 1419 Frst Dr, Annapolis, MD 21403
In-network · Wellpoint (formerly Amerigroup)
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: Wed, Nov 25

Dr. Alexander Mamunes, MD

Gastroenterologist
4.92
·218 reviews
Dr Mamunes was great, very thorough, kind, and receptive to my suggestions/thoughts - Jul 15, 2025 by Camille C.Click to read more
37 mi · 1212 York Rd, Ste B201, Lutherville Timonium, MD 21093
In-network · Wellpoint (formerly Amerigroup)
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: Thu, Nov 12

Dr. Alexander Mamunes, MD

Gastroenterologist
4.92
·218 reviews
Dr Mamunes was great, very thorough, kind, and receptive to my suggestions/thoughts - Jul 15, 2025 by Camille C.Click to read more
42 mi · 4940 Campbell Blvd, Ste 140, Nottingham, MD 21236
In-network · Wellpoint (formerly Amerigroup)
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, Nov 24

Dana Collins, NP

Nurse Practitioner
4.91
·292 reviews
Nurse Practitioner Dana was relatable caring and knowledgeable. I’m very glad I established care with her. - Jul 31, 2023 by Phethia J.Click to read more
38.5 mi · 50 Scott Adam Rd, Ste 102, Cockeysville, MD 21030
In-network · Wellpoint (formerly Amerigroup)
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
In addition to my practice at Resilience Healthcare, I teach nursing students at Bowie State University. I have spent the last 20 years providing urgent care and ER services at Providence Hospital Washington DC, Laurel Regional Hospital, MD, and the Washington Hospital Center. I have also worked ov...Click to read more
Next available: Thu, Nov 12

Dr. Dhruv Lowe, MD

Gastroenterologist
4.87
·435 reviews
Highly recommend Dr. Lowe! Consummate professional, good listener, kind, and expert knowledge. - Jul 22, 2024 by Seth R.Click to read more
2.5 mi · 15225 Shady Grove Rd,, Ste 304, Rockville, MD 20850
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more

Dr. Rushi Talati, MD

Gastroenterologist
4.92
·104 reviews
Dr. Talati is smart, kind, empathetic, an excellent listener, and gives terrific advice. We love thim in our family! by RJClick to read more
5.5 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · Wellpoint (formerly Amerigroup)
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. Dabo Xu, MD

Gastroenterologist
4.82
·432 reviews
Appointment is very professional and doctor and staff are all very nice and friendly. Clear communication and diagnosis. - Jan 31, 2023 by Yi L.Click to read more
5.5 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 4 more

Dr. Jennie Zhang, DO

Gastroenterologist
4.70
·40 reviews
Great staff. The doctor was very communicative and listened to all my concerns. - Jan 27, 2026 by Carlos A.Click to read more
5.5 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · Wellpoint (formerly Amerigroup)
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. Dhruv Lowe, MD

Gastroenterologist
4.87
·435 reviews
Highly recommend Dr. Lowe! Consummate professional, good listener, kind, and expert knowledge. - Jul 22, 2024 by Seth R.Click to read more
5.5 mi · 5622 Shields Dr, Bethesda, MD 20817
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more

Dr. Raymond Richhart, MD

Gastroenterologist
5.00
·35 reviews
was really very quick from checkin to get seen by the provider. The provider is thorough and made the entire encounter comfortable by ZRClick to read more
5.5 mi · 5622 Shields Dr, Bethesda, MD 20817
In-network · Wellpoint (formerly Amerigroup)
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

Dr. Pia Prakash, MD

Gastroenterologist
4.81
·308 reviews
Great office, nice doctor, good listener, very empathetic, good bed side manner. - Apr 9, 2025 by Kaaushik P.Click to read more
5.5 mi · 5622 Shields Dr, Bethesda, MD 20817
In-network · Wellpoint (formerly Amerigroup)
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. Neha Rajpal, MD

Gastroenterologist
4.95
·39 reviews
Professional, easy to make appt and quick check-in by SWClick to read more
5.5 mi · 5622 Shields Dr, Bethesda, MD 20817
In-network · Wellpoint (formerly Amerigroup)
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

Dr. Dabo Xu, MD

Gastroenterologist
4.82
·432 reviews
Appointment is very professional and doctor and staff are all very nice and friendly. Clear communication and diagnosis. - Jan 31, 2023 by Yi L.Click to read more
7 mi · 10301 Georgia Ave, Ste 208, Silver Spring, MD 20902
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 4 more

Dr. Rushi Talati, MD

Gastroenterologist
4.92
·104 reviews
Dr. Talati is smart, kind, empathetic, an excellent listener, and gives terrific advice. We love thim in our family! by RJClick to read more
7 mi · 10301 Georgia Ave, Ste 208, Silver Spring, MD 20902
In-network · Wellpoint (formerly Amerigroup)
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. Dhruv Lowe, MD

Gastroenterologist
4.87
·435 reviews
Highly recommend Dr. Lowe! Consummate professional, good listener, kind, and expert knowledge. - Jul 22, 2024 by Seth R.Click to read more
7 mi · 10301 Georgia Ave, Ste 208, Silver Spring, MD 20902
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more

Dr. Robert Byrne, MD

Gastroenterologist
4.66
·71 reviews
Great doctor, he listened to my issues & explained everything! I would definitely recommend him to my friends & family! - May 15, 2026 by Regina D.Click to read more
7 mi · 10301 Georgia Ave, Ste 208, Silver Spring, MD 20902
In-network · Wellpoint (formerly Amerigroup)
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

Melissa Nickols, PA

Physician Assistant (Gastroenterology)
4.95
·19 reviews
I would definitely recommend my PA MELISSA To a friend. She was very thorough and extremely helpful and nice! - Mar 20, 2026 by Gloria G.Click to read more
5.5 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · Wellpoint (formerly Amerigroup)
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

Xinna Yi, APRN, RN, NP

Nurse Practitioner (Gastroenterology)
5.00
·3 reviews
5.5 mi · 501 N Frederick Ave, Ste 204, Gaithersburg, MD 20877
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait time ·
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

Melissa Nickols, PA

Physician Assistant (Gastroenterology)
4.95
·19 reviews
I would definitely recommend my PA MELISSA To a friend. She was very thorough and extremely helpful and nice! - Mar 20, 2026 by Gloria G.Click to read more
5.5 mi · 5622 Shields Dr, Bethesda, MD 20817
In-network · Wellpoint (formerly Amerigroup)
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

Emily Ohland, PA-C

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

Monica Lovins, NP

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

Xinna Yi, APRN, RN, NP

Nurse Practitioner (Gastroenterology)
5.00
·3 reviews
7 mi · 3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait time ·
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

Dr. Rudrajit Rai, MD, FACG

Gastroenterologist
4.67
·15 reviews
very professional and thorough. listened and asked questions by Hermione C.Click to read more
15 mi · 6502 Kenilworth Ave, Ste 100, Riverdale, MD 20737
In-network · Wellpoint (formerly Amerigroup)
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. Janaki Kuruppu, MD

Internist (Virtual)
3.75
·12 reviews
I immediately called family and friends about my experience. The doctor and staff were welcoming and friendly. The doctor made the experience both personable and professional making me feel completely relaxed and comfortable. - Jun 12, 2026 by Harold C.Click to read more
Silver Spring, MD
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · 25+ years of experience · Offers video visits ·
Read bio
Dr. Janaki Kuruppu is a dedicated and well-trained internist and primary care doctor. She currently offers consultations at Kelly Collaborative Medicine in Silver Spring, MD. She also offers virtual consultations. Dr. Kuruppu is dedicated to improving the overall well-being of all her patients. She...Click to read more

Kennedy Lewis, PA, PA-C

Physician Assistant (Virtual)
5.00
·3 reviews
Silver Spring, MD
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Kennedy Lewis is a Physician Assistant (PA-C) from Greensboro, NC. Kennedy specializes in Primary Preventative Care, Pediatrics, and Dermatology. She completed her PA training at Case Western Reserve University: School of Medicine, where she gained valuable experience at the Cleveland Clinic and eng...Click to read more

Kennedy Lewis, PA, PA-C

Physician Assistant
5.00
·3 reviews
9 mi · 10801 Lockwood Dr, Ste 160, Silver Spring, MD 20901
In-network · Wellpoint (formerly Amerigroup)
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
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Kennedy Lewis is a Physician Assistant (PA-C) from Greensboro, NC. Kennedy specializes in Primary Preventative Care, Pediatrics, and Dermatology. She completed her PA training at Case Western Reserve University: School of Medicine, where she gained valuable experience at the Cleveland Clinic and eng...Click to read more

Dr. Monica Passi, MD

Gastroenterologist
4.83
·118 reviews
Very friendly and inviting staff! I would highly recommend to those who get more nervous around doctor's visits because they make sure you're doing well. Also, Dr. Passi was very sweet and understanding. Really great communicator and helped me understand what treatments I may need. Overall, great ex...Click to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Expertise in acute gastrointestinal bleeding + 5 more ·
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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. Pia Prakash, MD

Gastroenterologist
4.81
·308 reviews
Great office, nice doctor, good listener, very empathetic, good bed side manner. - Apr 9, 2025 by Kaaushik P.Click to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Expertise in colonoscopy + 3 more ·
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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. Alexander Mamunes, MD

Gastroenterologist
4.92
·218 reviews
Dr Mamunes was great, very thorough, kind, and receptive to my suggestions/thoughts - Jul 15, 2025 by Camille C.Click to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait time ·
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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. Dhruv Lowe, MD

Gastroenterologist
4.87
·435 reviews
Highly recommend Dr. Lowe! Consummate professional, good listener, kind, and expert knowledge. - Jul 22, 2024 by Seth R.Click to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more

Dr. Shaffer Mok, MD

Gastroenterologist
4.83
·46 reviews
Great first visit. Very personable and seemed truly interested in helping! - Jun 8, 2026 by Howard S.Click to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 2 more ·
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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

Dr. Dabo Xu, MD

Gastroenterologist
4.82
·432 reviews
Appointment is very professional and doctor and staff are all very nice and friendly. Clear communication and diagnosis. - Jan 31, 2023 by Yi L.Click to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 4 more

Dr. Eduardo Castillo, MD

Gastroenterologist
4.88
·242 reviews
Very quick, little wait time, overall good experience - Feb 2, 2022 by James G.Click to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 2 more ·
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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. Farzin Rashti, MD

Gastroenterologist
4.90
·553 reviews
Dr. Rashti is very easy going and knowledable, and wonderful staff! by BTClick to read more
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · 18 years of experience · Highly recommended · Expertise in colonoscopy + 3 more ·
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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. Pia Prakash, MD

Gastroenterologist
4.81
·308 reviews
Great office, nice doctor, good listener, very empathetic, good bed side manner. - Apr 9, 2025 by Kaaushik P.Click to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Expertise in colonoscopy + 3 more ·
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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. Rudrajit Rai, MD, FACG

Gastroenterologist
4.67
·15 reviews
very professional and thorough. listened and asked questions by Hermione C.Click to read more
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · 25+ years of experience · Excellent wait time · Expertise in gastroenteritis + 9 more ·
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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
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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
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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 Rockville who takes Wellpoint (formerly Amerigroup) insurance?

On average, patients who use Zocdoc can search for a Gastroenterologist in Rockville who takes Wellpoint (formerly Amerigroup) 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 Rockville who accept Wellpoint (formerly Amerigroup) insurance and make an appointment online.

How can I find a Gastroenterologist in Rockville who takes Wellpoint (formerly Amerigroup)?

Zocdoc lets you search specifically for a Gastroenterologist in Rockville who takes Wellpoint (formerly Amerigroup). 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 Wellpoint (formerly Amerigroup) Gastroenterologist in Rockville?

Zocdoc is a free online service that helps patients find Wellpoint (formerly Amerigroup) Gastroenterologists in Rockville and book appointments instantly. You can search for Wellpoint (formerly Amerigroup) Gastroenterologists in Rockville 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 Rockville who takes Wellpoint (formerly Amerigroup) insurance?

When you search for Wellpoint (formerly Amerigroup) Gastroenterologists in Rockville on Zocdoc, you can filter your results by gender, in addition to other criteria. That way, you’ll only see Wellpoint (formerly Amerigroup) Gastroenterologists in Rockville who match your preferences.

How can I find a Wellpoint (formerly Amerigroup) Gastroenterologist in Rockville who sees patients after hours?

On Zocdoc, you can search specifically for Wellpoint (formerly Amerigroup) Gastroenterologists in Rockville with availability after 5 p.m.

How can I find a top-rated Wellpoint (formerly Amerigroup) Gastroenterologist in Rockville?

You can use Zocdoc to find Wellpoint (formerly Amerigroup) Gastroenterologists in Rockville 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 Rockville?

Gastroenterologists in Rockville 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 Wellpoint (formerly Amerigroup)?

Most insurers provide coverage for video visits at the same cost as in-person visits. You can search on Zocdoc specifically for Gastroenterologists in Rockville who accept Wellpoint (formerly Amerigroup) 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 Wellpoint (formerly Amerigroup) Gastroenterologist in Rockville 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 Wellpoint (formerly Amerigroup) Gastroenterologist in Rockville who sees patients during the weekend?

Zocdoc let's you see real-time availability for Wellpoint (formerly Amerigroup) Gastroenterologists in Rockville. Many Wellpoint (formerly Amerigroup) Gastroenterologists offer appointments on Saturdays and Sundays.

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