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Gastroenterology in Washington, Washington DC

Data updated monthly · Last refresh September 2026

87 Gastroenterology providers practice in Washington, and 51% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Gastroenterology providers in Washington

Listed alphabetically. 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. Michael Gold, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 877-2848
Dr. Michael Phillips, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 785-0666
Dr. Michael Schwartz, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 296-3449
Dr. Michele Fischer, MD
Washington, DC · $66 in drug and device payments (2025) · Telehealth · (202) 877-7000
Dr. Mitesh Patel, M.D.
Washington, DC · $19 in drug and device payments (2025) · (202) 877-0160
Dr. Mohamed Sultan, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 994-4870
Dr. Momodu Jack, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 865-7981
Dr. Nadim Haddad
Washington, DC · No drug or device payments recorded (2025) · (202) 444-8541
Dr. Nalini Sharma, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 346-3481
Dr. Nikiya Asamoah-clark, M.D.
Washington, DC · $807 in drug and device payments (2025) · Telehealth · (202) 877-7108
Dr. Nouf Turki
Washington, DC · No drug or device payments recorded (2025) · (202) 715-4000
Dr. Paul Chang, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 741-3333
Dr. Philip Assatourians, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 223-2283
Dr. Raymond Janowski
Washington, DC · $71 in drug and device payments (2025) · (202) 741-2160
Dr. Roshan Bashir, M.D.
Washington, DC · $145 in drug and device payments (2025) · (202) 829-5192
Dr. Sabeen Medvedev, M.D, M.S
Washington, DC · No drug or device payments recorded (2025) · (202) 444-3632
Dr. Sadye Curry, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 865-1925
Dr. Samuel Harrington, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 966-3376
Dr. Samuel Kallus, M.D.
Washington, DC · $1,833 in drug and device payments (2025) · Telehealth · (202) 444-8168
Dr. Samuel Schueler, M.D.
Washington, DC · $1,556 in drug and device payments (2025) · (202) 741-2160
Dr. Shandiz Shahbazi
Washington, DC · No drug or device payments recorded (2025) · Telehealth · (202) 444-8168
Dr. Shervin Shafa, M.D.
Washington, DC · $2,886 in drug and device payments (2025) · Telehealth · (202) 444-1039
Dr. Shivan Gosine, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 346-3000
Dr. Stanley Benjamin
Washington, DC · No drug or device payments recorded (2025) · (202) 444-8541
Dr. Stanley Pietrak, M.D.
Washington, DC · $78 in drug and device payments (2025) · Telehealth · (202) 444-8541
Dr. Steven Zeddun, MD
Washington, DC · $233 in drug and device payments (2025) · Telehealth · (202) 741-2160
Dr. Stuart Horwitz, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 832-2880
Dr. Sumona Bhattacharya
Washington, DC · $1,964 in drug and device payments (2025) · Telehealth · (202) 741-2160
Dr. Susan Laessig, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 829-0170
Dr. Susan Lazerow, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 745-8151
Dr. Tahmoures Dehesh, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 526-2800
Dr. Thomas Loughney, MD
Washington, DC · No drug or device payments recorded (2025) · Telehealth · (202) 966-3376
Dr. Timothy Koch, M.D.
Washington, DC · $25 in drug and device payments (2025) · (202) 877-7788
Dr. Victor Scott, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 865-7470
Dr. Walid Chalhoub, M.D.
Washington, DC · $750 in drug and device payments (2025) · Telehealth · (202) 444-8541
Dr. William Park, MD
Washington, DC · $191 in drug and device payments (2025) · Telehealth · (202) 416-2000
Dr. Zana Marks, MD
Washington, DC · No drug or device payments recorded (2025) · (301) 574-6655

Conditions Gastroenterology providers in Washington, Washington DC 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 Washington, Washington DC?

There are 87 Gastroenterology providers with active NPI records practicing in Washington, according to federal NPPES data refreshed monthly.

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

44 of 87 (51%) 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 Washington treat?

Gastroenterology providers in Washington 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 records 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.

All specialties in Washington Gastroenterology across Washington DC

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.