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
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Gastroenterology by city in Maryland
Choose a city to see providers there.
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. Richard Gelfand, M.D.Bethesda, MD · $243 in drug and device payments (2025) ·
(301) 493-5210 Dr. Roy Wong, M.D.Bethesda, MD · No drug or device payments recorded (2025) ·
(301) 400-0539 Dr. Ryan Kozloski, MDBethesda, MD · No drug or device payments recorded (2025) ·
(301) 295-4000 Dr. Samuel Muench, M.D.Bethesda, MD · $25,772 in drug and device payments (2025) · Telehealth ·
(718) 920-4321 Dr. Seth Dukes, M.D,Bethesda, MD · $1,357 in drug and device payments (2025) ·
(301) 295-4000 Dr. Theo Heller, MDBethesda, MD · No drug or device payments recorded (2025) ·
(301) 896-3517 Dr. Zachary Johnston, MDBethesda, MD · No drug or device payments recorded (2025) ·
(717) 823-1216 Dr. Asghar Shaigany, MDBladensburg, MD · $18 in drug and device payments (2025) ·
(301) 864-3888 Dr. David Siegel, M.D.Bowie, MD · $49 in drug and device payments (2025) · Telehealth ·
(301) 262-8188 Dr. Gurinder Singh, M.D.Bowie, MD · No drug or device payments recorded (2025) ·
(301) 262-8602 Dr. Napoleon Marcelo, M.D.Bowie, MD · No drug or device payments recorded (2025) ·
(301) 262-8602 Dr. Ritu Sachdev, M.D.Bowie, MD · $474 in drug and device payments (2025) · Telehealth ·
(301) 262-8188 Dr. Sanjiv Sood, M.D.Bowie, MD · $1,255 in drug and device payments (2025) · Telehealth ·
(301) 249-8440 Dr. Allen Banegura, M.D.Catonsville, MD · $416 in drug and device payments (2025) · Telehealth ·
(410) 247-7500 Dr. Ghita Moussaide, M.D.Catonsville, MD · $29 in drug and device payments (2025) ·
(410) 247-7500 Dr. Hossein Tavassolie, M.D.Catonsville, MD · No drug or device payments recorded (2025) ·
(410) 247-7500 Dr. Justin Rosemore, D.O.Catonsville, MD · No drug or device payments recorded (2025) ·
(443) 801-7151 Dr. Louis Salas, M.D.Catonsville, MD · $148 in drug and device payments (2025) · Telehealth ·
(410) 247-7500 Dr. Missale Solomon, M.D.Catonsville, MD · $858 in drug and device payments (2025) · Telehealth ·
(410) 247-7500 Dr. Muhammad Afzal, M.D.Catonsville, MD · No drug or device payments recorded (2025) ·
(410) 247-7500 Dr. Natarajan Ravendhran, M.D.Catonsville, MD · $29,361 in drug and device payments (2025) · Telehealth ·
(410) 247-7500 Dr. Neeraj Sardana, M.D.Catonsville, MD · $1,065 in drug and device payments (2025) · Telehealth ·
(410) 247-7500 Dr. Thomas Abernathy, M.D.Catonsville, MD · $1,481 in drug and device payments (2025) · Telehealth ·
(410) 247-7500 Dr. Amy Shah, MDChevy Chase, MD · $112 in drug and device payments (2025) · Telehealth ·
(240) 737-0085 Dr. Erica Cohen, M.D.Chevy Chase, MD · $152,382 in drug and device payments (2025) · Telehealth ·
(240) 737-0085 Dr. Jamshid Katebi Kashi, MDChevy Chase, MD · No drug or device payments recorded (2025) ·
(703) 462-3148 Dr. Jonathan Koff, M.D.Chevy Chase, MD · $2,629 in drug and device payments (2025) · Telehealth ·
(301) 718-0600 Dr. Kathryn Kirk, MDChevy Chase, MD · $1,254 in drug and device payments (2025) · Telehealth ·
(301) 654-2521 Dr. Kevin Collier, M.D.Chevy Chase, MD · $2,947 in drug and device payments (2025) · Telehealth ·
(301) 654-2521 Dr. Lawrence Widerlite, M.D.Chevy Chase, MD · No drug or device payments recorded (2025) ·
(240) 737-0085 Dr. Lester Marion, MDChevy Chase, MD · No drug or device payments recorded (2025) ·
(301) 656-3555 Dr. Louis Korman, M.D.Chevy Chase, MD · $265 in drug and device payments (2025) ·
(301) 654-2521 Dr. Matthew Chandler, M.D.Chevy Chase, MD · $2,704 in drug and device payments (2025) · Telehealth ·
(240) 737-0085 Dr. Michael Keegan, M.D.Chevy Chase, MD · No drug or device payments recorded (2025) ·
(301) 654-2521 Dr. Mohammed Ali, MDChevy Chase, MD · $446 in drug and device payments (2025) · Telehealth ·
(240) 737-0085 Dr. Ramin Farboudmanesch, MDChevy Chase, MD · $927 in drug and device payments (2025) · Telehealth ·
(202) 450-6081 Dr. Ramsey Daher, M.D.Chevy Chase, MD · $1,983 in drug and device payments (2025) · Telehealth ·
(240) 737-0085 Dr. Robert Hardi, M.D.Chevy Chase, MD · $38 in drug and device payments (2025) ·
(301) 654-2521 Dr. Robynne Chutkan, M.D.Chevy Chase, MD · No drug or device payments recorded (2025) ·
(301) 215-7700 Dr. Zachary Borman, M.D.Chevy Chase, MD · $201,960 in drug and device payments (2025) · Telehealth ·
(240) 737-5500 Dr. Lubna Khan, MDClarksville, MD · No drug or device payments recorded (2025) ·
(410) 531-5466 Dr. Alireza Meighani, M.DClinton, MD · $574 in drug and device payments (2025) · Telehealth ·
(301) 877-4599 Dr. Camille Boustani, MDClinton, MD · No drug or device payments recorded (2025) · Telehealth ·
(301) 868-8000 Dr. Chandrakant Bhatia, M.D.Clinton, MD · No drug or device payments recorded (2025) ·
(301) 868-2106 Dr. James Chesley, MDClinton, MD · No drug or device payments recorded (2025) ·
(301) 868-9510 Dr. Mark Real, M.D.Clinton, MD · No drug or device payments recorded (2025) · Telehealth ·
(301) 877-4599 Dr. Robert Schenck, M.D.Clinton, MD · No drug or device payments recorded (2025) · Telehealth ·
(301) 877-5840 Dr. Adinarayana Divakaruni, M.D.Columbia, MD · No drug or device payments recorded (2025) ·
(410) 992-9797 Dr. Alexander MamunesColumbia, MD · $2,084 in drug and device payments (2025) · Telehealth ·
(615) 322-0128 Dr. April Tignor, M.D.Columbia, MD · $1,709 in drug and device payments (2025) · Telehealth ·
(410) 290-6677 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.
- Acid reflux
- IBS
- Crohn disease
- Ulcerative colitis
- Celiac disease
- Colon cancer screening
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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