HealthcareDiscovery.AI / Doctors / Maryland / Gastroenterology

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.

503providers
200telehealth
Baltimoretop city

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. Marcia Canto, M.D.
Baltimore, MD · $465 in drug and device payments (2025) · Telehealth · (410) 955-4166
Dr. Margaret Keane, MBBS, MSC
Baltimore, MD · $33,641 in drug and device payments (2025) · Telehealth · (410) 502-3699
Dr. Mark Diamond, MD
Baltimore, MD · $762 in drug and device payments (2025) · Telehealth · (410) 574-5877
Dr. Mark Donowitz, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · (410) 955-4166
Dr. Mark Lazarev, M.D.
Baltimore, MD · $2,545 in drug and device payments (2025) · Telehealth · (410) 614-6708
Dr. Mary Harris, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · (410) 955-4166
Dr. Matilda Hagan, MD
Baltimore, MD · $17,670 in drug and device payments (2025) · Telehealth · (410) 332-9356
Dr. Megan Murphy, MD
Baltimore, MD · $646 in drug and device payments (2025) · Telehealth · (410) 502-2037
Dr. Megan Willard, MD
Baltimore, MD · $195 in drug and device payments (2025) · (410) 328-5780
Dr. Mesbah Dowla, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · (410) 248-9112
Dr. Mian Khalid, MD
Baltimore, MD · $55 in drug and device payments (2025) · Telehealth · (410) 955-5000
Dr. Michael Asike, M.D.
Baltimore, MD · $1,584 in drug and device payments (2025) · Telehealth · (443) 849-3400
Dr. Michael Blume, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · (443) 759-5483
Dr. Michael Goggins, M.D.
Baltimore, MD · $19 in drug and device payments (2025) · Telehealth · (410) 955-4166
Dr. Michael Siuta, M.D.
Baltimore, MD · $1,906 in drug and device payments (2025) · (410) 602-7782
Dr. Michelle Ma, MD
Baltimore, MD · $744 in drug and device payments (2025) · Telehealth · (410) 955-2636
Dr. Mohammad Inayatullah
Baltimore, MD · $29 in drug and device payments (2025) · (410) 727-5447
Dr. Mohammed El-dallal, M.D.
Baltimore, MD · $630 in drug and device payments (2025) · (410) 328-5780
Dr. Mouen Khashab, MD
Baltimore, MD · $65,386 in drug and device payments (2025) · (443) 287-1960
Dr. Nathalie Urrunaga, MD
Baltimore, MD · $548 in drug and device payments (2025) · (410) 328-5780
Dr. Nauroz Syed, M.D.
Baltimore, MD · $896 in drug and device payments (2025) · Telehealth · (410) 332-9694
Dr. Neha Jakhete, MD
Baltimore, MD · $7,861 in drug and device payments (2025) · Telehealth · (410) 328-5780
Dr. Neil Goldberg, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · (410) 296-4210
Dr. Nicholas Belitsos, MD
Baltimore, MD · No drug or device payments recorded (2025) · (443) 442-2300
Dr. Olaya Brewer Gutierrez, MD
Baltimore, MD · $22,866 in drug and device payments (2025) · Telehealth · (410) 502-3699
Dr. Osman Ali, MD
Baltimore, MD · $8,704 in drug and device payments (2025) · Telehealth · (410) 225-8790
Dr. Paul Thuluvath, M.D.
Baltimore, MD · $28,988 in drug and device payments (2025) · Telehealth · (410) 955-4166
Dr. Peter Darwin, MD
Baltimore, MD · $59 in drug and device payments (2025) · (410) 328-8729
Dr. Po-hung Chen, M.D.
Baltimore, MD · $166 in drug and device payments (2025) · Telehealth · (410) 614-0950
Dr. Ralph Updike, MD
Baltimore, MD · No drug or device payments recorded (2025) · (410) 646-4404
Dr. Raymond Cross, MD
Baltimore, MD · $101,768 in drug and device payments (2025) · Telehealth · (410) 328-5793
Dr. Raymond Kim, MD
Baltimore, MD · $20,958 in drug and device payments (2025) · (410) 328-5780
Dr. Richard Desi
Baltimore, MD · $1,547 in drug and device payments (2025) · Telehealth · (410) 332-9356
Dr. Robert Bulat, MD
Baltimore, MD · $417 in drug and device payments (2025) · Telehealth · (410) 550-7030
Dr. Robert Mathieson, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · (410) 243-4460
Dr. Ronald Ginsberg, MD
Baltimore, MD · No drug or device payments recorded (2025) · (410) 484-4840
Dr. Ruhail Kohli, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · Telehealth · (410) 955-9697
Dr. Saleh Alqahtani, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · (410) 955-3779
Dr. Sandra Quezada, MD
Baltimore, MD · $14,589 in drug and device payments (2025) · (410) 706-3387
Dr. Saowanee Ngamruengphong, MD
Baltimore, MD · $367 in drug and device payments (2025) · Telehealth · (410) 550-1793
Dr. Sara Yacyshyn, MD
Baltimore, MD · $128 in drug and device payments (2025) · Telehealth · (410) 332-9356
Dr. Sergey Kantsevoy, M.D., PH.D.
Baltimore, MD · $113,166 in drug and device payments (2025) · Telehealth · (410) 955-4166
Dr. Sonia Gosain, MD
Baltimore, MD · No drug or device payments recorded (2025) · Telehealth · (410) 328-5720
Dr. Stephen Meltzer, M.D.
Baltimore, MD · $18 in drug and device payments (2025) · (410) 502-6072
Dr. Steven Epstein, MD
Baltimore, MD · $637 in drug and device payments (2025) · (410) 602-7782
Dr. Subramanian Srinivas, M.D.
Baltimore, MD · No drug or device payments recorded (2025) · (410) 464-5600
Dr. Sumita Verma, M.D.
Baltimore, MD · $24 in drug and device payments (2025) · (410) 955-4166
Dr. Sun Jung Oh
Baltimore, MD · No drug or device payments recorded (2025) · Telehealth · (104) 955-2635
Dr. Todd Heller, M.D.
Baltimore, MD · $1,323 in drug and device payments (2025) · (410) 602-7782
Dr. Tsion Abdi, MD
Baltimore, MD · $242 in drug and device payments (2025) · Telehealth · (410) 550-7030

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.

Related reading on HealthcareDiscovery.AI

Gastroenterology in all 50 states Search all 503 in the directory Ask Zach for help choosing

Related

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.