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Gastroenterologists in Maryland

Data updated monthly · Last refresh October 2026

503 Gastroenterology providers practice in Maryland, including 200 (40%) offering telehealth. The largest concentration is in Baltimore. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

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Gastroenterology by city in Maryland

Choose a city to see providers there.

Gastroenterology in Baltimore132 providers
Gastroenterology in Rockville38 providers
Gastroenterology in Bethesda35 providers
Gastroenterology in Columbia24 providers
Gastroenterology in Annapolis24 providers
Gastroenterology in Frederick23 providers
Gastroenterology in Silver Spring21 providers
Gastroenterology in Chevy Chase17 providers
Gastroenterology in Laurel14 providers
Gastroenterology in Lutherville11 providers
Gastroenterology in Hagerstown11 providers
Gastroenterology in Towson10 providers
Gastroenterology in Catonsville10 providers
Gastroenterology in Glen Burnie7 providers
Gastroenterology in Waldorf7 providers
Gastroenterology in Greenbelt6 providers
Gastroenterology in Clinton6 providers
Gastroenterology in Oxon Hill6 providers
Gastroenterology in Prince Frederick6 providers
Gastroenterology in Abingdon6 providers
Gastroenterology in Easton6 providers
Gastroenterology in Berlin5 providers
Gastroenterology in Olney5 providers
Gastroenterology in Bowie5 providers

Gastroenterology providers in Maryland

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Biju Alex, M.D.
Columbia, MD · $3,489 in drug and device payments (2025) · (410) 992-9797
Dr. Eduardo Castillo Del Castillo, M.D.
Columbia, MD · $2,377 in drug and device payments (2025) · Telehealth · (844) 814-5742
Dr. Ekta Gupta, M.D.
Columbia, MD · $767 in drug and device payments (2025) · Telehealth · (443) 546-1512
Dr. Grishma Joy, M.D.
Columbia, MD · $506 in drug and device payments (2025) · Telehealth · (410) 992-9797
Dr. Jeffery Van Den Broek, D.O.
Columbia, MD · $236 in drug and device payments (2025) · (410) 992-9797
Dr. Jennie Zhang, D.O
Columbia, MD · $814 in drug and device payments (2025) · Telehealth · (410) 290-6677
Dr. Khurram Hanif, M.D.
Columbia, MD · No drug or device payments recorded (2025) · (410) 884-1234
Dr. Lawrence Sorkin, M.D.
Columbia, MD · No drug or device payments recorded (2025) · (410) 730-4314
Dr. Monica Passi, M.D.
Columbia, MD · $698 in drug and device payments (2025) · Telehealth · (410) 290-6677
Dr. Monica Patel, MD, MBA
Columbia, MD · No drug or device payments recorded (2025) · (410) 290-6677
Dr. Neha Rajpal, MD
Columbia, MD · No drug or device payments recorded (2025) · (410) 290-6677
Dr. Pia Prakash, M.D.
Columbia, MD · $2,771 in drug and device payments (2025) · Telehealth · (410) 290-6677
Dr. Preston Kim, M.D.
Columbia, MD · $3,906 in drug and device payments (2025) · Telehealth · (410) 992-9797
Dr. Richard Andorsky, M.D.
Columbia, MD · $102 in drug and device payments (2025) · (410) 992-9797
Dr. Robert Byrne, M.D.
Columbia, MD · $365 in drug and device payments (2025) · Telehealth · (410) 290-6677
Dr. Rudrajit Rai, MD
Columbia, MD · $11,859 in drug and device payments (2025) · Telehealth · (410) 290-6677
Dr. Rushi Talati, MD, MBA
Columbia, MD · $255 in drug and device payments (2025) · Telehealth · (410) 290-6677
Dr. Russell Schub, D.O.
Columbia, MD · $236 in drug and device payments (2025) · (410) 730-1000
Dr. Shaffer Mok, M.D.
Columbia, MD · $9,480 in drug and device payments (2025) · Telehealth · (410) 290-6677
Dr. Vijay Narayen, M.D.
Columbia, MD · No drug or device payments recorded (2025) · (410) 992-9797
Dr. Zahid Butt, MD
Columbia, MD · No drug or device payments recorded (2025) · (410) 992-9797
Dr. Amit Sachdev, M.D.
Cumberland, MD · $44 in drug and device payments (2025) · (240) 964-8515
Dr. Nii Lamptey-mills, M.D
Cumberland, MD · $102 in drug and device payments (2025) · (240) 964-8717
Dr. Somashekhar Bellary, MD
Cumberland, MD · No drug or device payments recorded (2025) · (301) 724-9100
Dr. Syed Bilal Pasha
Cumberland, MD · $123 in drug and device payments (2025) · (573) 882-8586
Dr. George Galifianakis, M.D.
Delmar, MD · No drug or device payments recorded (2025) · (410) 896-3693
Dr. Kota Chandrasekhara, M.D.
Delmar, MD · No drug or device payments recorded (2025) · (410) 896-3693
Dr. Manish Singla, MD
Delmar, MD · $1,969 in drug and device payments (2025) · Telehealth · (410) 896-3693
Dr. Steven Turnamian, M.D.
Delmar, MD · No drug or device payments recorded (2025) · (410) 896-3693
Dr. Hai-ou Jin, MD
Easton, MD · $66 in drug and device payments (2025) · (410) 822-6005
Dr. Hamza Abdulla, M.D.
Easton, MD · $162 in drug and device payments (2025) · Telehealth · (410) 822-6005
Dr. Matthew Troshinsky, MD
Easton, MD · No drug or device payments recorded (2025) · (410) 822-6005
Dr. Michael Fisher, MD, FACG
Easton, MD · No drug or device payments recorded (2025) · (410) 822-6005
Dr. Michael Moran, MD
Easton, MD · $502 in drug and device payments (2025) · (410) 221-1185
Dr. Volkan Taskin, MD
Easton, MD · $499 in drug and device payments (2025) · Telehealth · (410) 822-6005
Dr. Claire Zhang, M.D.
Elkton, MD · $1,051 in drug and device payments (2025) · (410) 398-8888
Dr. Roger Wu, MD
Elkton, MD · $1,764 in drug and device payments (2025) · Telehealth · (410) 398-8888
Dr. Christopher Lee, M.D.
Fort Meade, MD · No drug or device payments recorded (2025) · (301) 677-8138
Dr. Thomas Gage, MD
Fort Washington, MD · No drug or device payments recorded (2025) · (301) 292-6239
Dr. Ali Husain, MD
Frederick, MD · $1,438 in drug and device payments (2025) · (301) 695-6800
Dr. Andrew Mowery, DO
Frederick, MD · $1,944 in drug and device payments (2025) · (301) 695-6800
Dr. Arash Zarrin, DO
Frederick, MD · $748 in drug and device payments (2025) · Telehealth · (301) 624-5566
Dr. Carmen Hernandez, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (301) 695-6800
Dr. Daniel Daniels, M.D.
Frederick, MD · $1,514 in drug and device payments (2025) · (240) 575-2526
Dr. Dawei Yang, MD
Frederick, MD · $8,288 in drug and device payments (2025) · (301) 695-6800
Dr. Erin Krstanovic, CRNP- ADULT
Frederick, MD · $1,951 in drug and device payments (2025) · (301) 663-9440
Dr. Gordon Liss, MD
Frederick, MD · $655 in drug and device payments (2025) · Telehealth · (301) 695-6800
Dr. Hemant Chatrath, M.D.
Frederick, MD · No drug or device payments recorded (2025) · (240) 215-6310
Dr. Jessica Rosenberg
Frederick, MD · $1,470 in drug and device payments (2025) · (013) 695-6800
Dr. Leonard Kane, M.D.
Frederick, MD · $2,112 in drug and device payments (2025) · (301) 663-9440

Conditions Gastroenterology providers in Maryland commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Gastroenterology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Gastroenterology providers are in Maryland?

There are 503 Gastroenterology providers with active NPI records practicing in Maryland, according to federal NPPES data refreshed monthly.

Do Gastroenterology providers in Maryland offer telehealth?

Yes. 200 of the 503 Gastroenterology providers in Maryland (about 40%) report offering telehealth services in CMS data.

Which cities in Maryland have the most Gastroenterology providers?

Baltimore (132), Rockville (38), Bethesda (35) have the highest concentration of Gastroenterology providers in Maryland.

How many Gastroenterology providers in Maryland received drug or device company payments?

325 of 503 Gastroenterology providers in Maryland (65%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Gastroenterology providers in Maryland treat?

Gastroenterology providers commonly treat acid reflux, IBS, Crohn disease, ulcerative colitis, celiac disease and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Gastroenterologists in Maryland work in independent practices or large health systems?

Among 305 Gastroenterologists in Maryland enrolled in Medicare, 14% bill through a solo or small practice with fewer than 10 clinicians, 20% through a mid-size group of 10 to 99, and 66% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Gastroenterologists in Maryland work at?

According to CMS facility affiliation records, the Maryland hospitals where the most Gastroenterologists hold privileges are Johns Hopkins Hospital, the in Baltimore; Johns Hopkins Bayview Medical Center in Baltimore; Adventist Healthcare Shady Grove Medical Center in Rockville.

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Gastroenterology in Maryland? Get featured.