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217 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.
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Availability last updated 07/18/2026
Availability last updated 07/18/2026
Gastroenterologist
4.92
·537 reviews
Friendly staff, kind nurses and doctors, and the best phlebotomist.Click 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, Jul 27
Gastroenterologist
4.81
·425 reviews
Dr. Xu was amazing. He listened and took time to explain everything. It was truly a wonderful experience - May 25, 2023 by Gabrielle T.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, Jul 28
Gastroenterologist
4.94
·90 reviews
Fantastic! Great doctor not a pill pusher and showed me sincere concern. - Jun 20, 2026 by Thomas M.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. 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, Jul 29
Gastroenterologist
4.81
·298 reviews
I really enjoyed my experience. I feel like the doctor took the time to listen and provide me with optionsClick 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 ·
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, Jul 29
Gastroenterologist
4.89
·227 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: Mon, Aug 3
Gastroenterologist
4.94
·90 reviews
Fantastic! Great doctor not a pill pusher and showed me sincere concern. - Jun 20, 2026 by Thomas M.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. 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, Aug 5
Gastroenterologist
4.89
·227 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, Aug 11
Gastroenterologist
4.64
·14 reviews
I enjoyed my visit. Dr. Rai is very patient, informative, caring and helpful. I love my doctor. by DRClick 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 ·
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: Thu, Aug 13
Family Nurse Practitioner
18.5 mi · 9650 Santiago Rd, Ste 7, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients ·
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
Next available: Mon, Jul 20
Nurse Practitioner (Gastroenterology)
5.00
·31 reviews
The place was easy to find. Staff was friendly and welcoming. The office was clean and organized. I loved the dr I saw! She listened, answered all of my questions, and set me up with next steps. - May 2, 2026 by Richelle D.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, Jul 24
Gastroenterologist
4.90
·30 reviews
Knows what he is talking about. Funny and charming. Easy going by GPClick 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: Mon, Jul 20
Gastroenterologist
4.90
·30 reviews
Knows what he is talking about. Funny and charming. Easy going by GPClick 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: Tue, Jul 21
Gastroenterologist
4.92
·208 reviews
He was excellent! He listens and really explains things(Awesome!) by PWClick 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, Jul 23
Gastroenterologist
4.38
·37 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, Aug 12
Gastroenterologist
4.89
·227 reviews
The doctor was great very informative very through very easy to talk to. - Oct 28, 2023 by Regina O.Click to read more
35.5 mi · 1419 Frst Dr, Annapolis, MD 21403
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: Fri, Aug 14
Gastroenterologist
4.83
·304 reviews
The team was personable and knowledgeable and it was a pleasure to deal with them through the entire process. - May 5, 2021 by Jackson 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 · 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: Mon, Jul 27
Gastroenterologist
4.92
·208 reviews
He was excellent! He listens and really explains things(Awesome!) by PWClick 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: Wed, Jul 29
Nurse Practitioner
4.91
·279 reviews
Would highly recommend Dana. She truly listens and gave great explanations.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: Mon, Aug 24
Gastroenterologist
4.94
·90 reviews
Fantastic! Great doctor not a pill pusher and showed me sincere concern. - Jun 20, 2026 by Thomas M.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
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
Gastroenterologist
4.81
·298 reviews
I really enjoyed my experience. I feel like the doctor took the time to listen and provide me with optionsClick 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
Gastroenterologist
4.64
·67 reviews
Dr. Byrne was very nice and did a good job communicating with me - Feb 4, 2026 by Matthew K.Click to read more
5.5 mi · 5622 Shields Dr, Bethesda, MD 20817
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
Gastroenterologist
4.88
·422 reviews
Great bed side manners. Dr. Lowe listened to all my questions and concerns without rushing me. - Dec 8, 2023 by Mariela T.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
Gastroenterologist
4.81
·425 reviews
Dr. Xu was amazing. He listened and took time to explain everything. It was truly a wonderful experience - May 25, 2023 by Gabrielle T.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
Gastroenterologist
4.88
·422 reviews
Great bed side manners. Dr. Lowe listened to all my questions and concerns without rushing me. - Dec 8, 2023 by Mariela T.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
Gastroenterologist
4.64
·33 reviews
Great staff. The doctor was very communicative and listened to all my concerns. - Jan 27, 2026 by Carlos A.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. 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
Nurse Practitioner (Gastroenterology)
5.00
·2 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
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
Nurse Practitioner (Gastroenterology)
5.00
·2 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
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
Gastroenterologist
4.64
·14 reviews
I enjoyed my visit. Dr. Rai is very patient, informative, caring and helpful. I love my doctor. by DRClick 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
Internist
4.85
·1156 reviews
She is the best Nice Listen && the best part understanding my situation - Jan 29, 2021 by Lamar G.Click to read more
9 mi · 10801 Lockwood Dr, Ste 160, Silver Spring, MD 20901
In-network · Wellpoint (formerly Amerigroup)
Also offers video visits · Accepting new patients · 19 years of experience · Highly recommended · Excellent wait time · Expertise in insomnia + 9 more ·
Read bio
Dr. Kathryn Kelly is a board-certified Internal Medicine Physician who has worked in the Washington, DC, area for five years after completing her National Health Service Corp obligation in Albany, Georgia. Dr. Kelly received her undergraduate degrees from Howard University with a Bachelor of Scie...Click to read more
Internist (Virtual)
3.50
·10 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
Gastroenterologist
4.81
·298 reviews
I really enjoyed my experience. I feel like the doctor took the time to listen and provide me with optionsClick 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 ·
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
Gastroenterologist
4.88
·422 reviews
Great bed side manners. Dr. Lowe listened to all my questions and concerns without rushing me. - Dec 8, 2023 by Mariela T.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
Gastroenterologist
4.92
·208 reviews
He was excellent! He listens and really explains things(Awesome!) by PWClick 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. 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
Gastroenterologist
4.87
·231 reviews
Todas las personas que trabaja ahí son muy profesionales y muy amables te explican todo muy bien. Un excelente servicio!!! by Carlos 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 ·
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
Gastroenterologist
4.92
·537 reviews
Friendly staff, kind nurses and doctors, and the best phlebotomist.Click 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 ·
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
Gastroenterologist
4.81
·425 reviews
Dr. Xu was amazing. He listened and took time to explain everything. It was truly a wonderful experience - May 25, 2023 by Gabrielle T.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
Gastroenterologist
4.84
·99 reviews
Dr Passi is great! Professional; warm; knowledgeable; and action based! Highly recommended! - Jan 15, 2026 by Monique N A.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 ·
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
Gastroenterologist
4.84
·99 reviews
Dr Passi is great! Professional; warm; knowledgeable; and action based! Highly recommended! - Jan 15, 2026 by Monique N A.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
Gastroenterologist
4.92
·208 reviews
He was excellent! He listens and really explains things(Awesome!) by PWClick 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
Physician Assistant (Gastroenterology)
4.88
·8 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 · 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
Nurse Practitioner (Gastroenterology)
5.00
·2 reviews
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
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
Nurse Practitioner (Gastroenterology)
4.78
·18 reviews
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait time
Physician Assistant (Gastroenterology)
4.56
·9 reviews
17.5 mi · 7130 Minstrel Way, Ste 215, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients
Nurse Practitioner (Gastroenterology)
4.78
·18 reviews
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait time
Nurse Practitioner (Gastroenterology)
5.00
·31 reviews
The place was easy to find. Staff was friendly and welcoming. The office was clean and organized. I loved the dr I saw! She listened, answered all of my questions, and set me up with next steps. - May 2, 2026 by Richelle D.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
Physician Assistant (Gastroenterology)
4.56
·9 reviews
18 mi · 7120 Minstrel Way, Ste 100, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients
Family Nurse Practitioner
18.5 mi · 9650 Santiago Rd, Ste 7, Columbia, MD 21045
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients ·
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
Gastroenterologist
4.92
·208 reviews
He was excellent! He listens and really explains things(Awesome!) by PWClick 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 ·
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
Gastroenterologist
4.64
·14 reviews
I enjoyed my visit. Dr. Rai is very patient, informative, caring and helpful. I love my doctor. by DRClick to read more
35.5 mi · 1419 Frst Dr, Annapolis, MD 21403
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
Gastroenterologist
4.92
·537 reviews
Friendly staff, kind nurses and doctors, and the best phlebotomist.Click to read more
35.5 mi · 1419 Frst Dr, Annapolis, MD 21403
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
Gastroenterologist
4.87
·231 reviews
Todas las personas que trabaja ahí son muy profesionales y muy amables te explican todo muy bien. Un excelente servicio!!! by Carlos G.Click to read more
35.5 mi · 1419 Frst Dr, Annapolis, MD 21403
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
Gastroenterologist
4.88
·422 reviews
Great bed side manners. Dr. Lowe listened to all my questions and concerns without rushing me. - Dec 8, 2023 by Mariela T.Click to read more
35.5 mi · 1419 Frst Dr, Annapolis, MD 21403
In-network · Wellpoint (formerly Amerigroup)
Accepting new patients · Highly recommended · Excellent wait timeExpertise in upper gi endoscopy + 2 more
Gastroenterologist
4.84
·99 reviews
Dr Passi is great! Professional; warm; knowledgeable; and action based! Highly recommended! - Jan 15, 2026 by Monique N A.Click to read more
35.5 mi · 1419 Frst Dr, Annapolis, MD 21403
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
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
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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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