Gastroenterologists in New York
Data updated monthly · Last refresh October 2026
1,805 Gastroenterology providers practice in New York, including 726 (40%) offering telehealth. The largest concentration is in New York. 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.
1,805providers
726telehealth
New Yorktop city
Gastroenterology by city in New York
Choose a city to see providers there.
Where Gastroenterologists in New York practice
From CMS Medicare enrollment records covering 1,297 of the 1,805 providers listed here (72%). Providers who do not bill Medicare are not included in these figures.
18%solo or small practice (under 10 clinicians)
17%mid-size group (10 to 99)
65%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Gastroenterologists | All clinicians in group | Main city |
| New York University | 120 | 5,925 | New York |
| North Shore-Lij Medical PC | 75 | 6,374 | Manhasset |
| Gastrointestinal Care of Long Island PLLC | 73 | 175 | Massapequa |
| Icahn School of Medicine at Mount Sinai | 69 | 2,809 | New York |
| Trustees of Columbia University in the City of New York | 42 | 2,262 | New York |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Gastroenterologists affiliated |
| NYU Langone Hospitals | New York | Nonprofit | 5 of 5 | 148 |
| North Shore University Hospital | Manhasset | Nonprofit | 5 of 5 | 120 |
| New York-Presbyterian Hospital | New York | Nonprofit | 5 of 5 | 107 |
| Mount Sinai Hospital | New York | Nonprofit | 4 of 5 | 58 |
| Long Island Jewish Medical Center | New Hyde Park | Nonprofit | 4 of 5 | 56 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Gastroenterology providers in New York
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. Alan Samuels, M.D.Albany, NY · No drug or device payments recorded (2025) ·
(518) 438-4483 Dr. Ariana Tagliaferri, MDAlbany, NY · No drug or device payments recorded (2025) ·
(518) 533-5000 Dr. Bora Gumustop, M.D.Albany, NY · $21,439 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Carla Fernando-gilday, M.D. Dr. Cassidy Alexandre, M.D.Albany, NY · $1,978 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Catherine Bartholomew, M.D.Albany, NY · No drug or device payments recorded (2025) ·
(518) 262-5276 Dr. Christopher Ashley, M.D.Albany, NY · No drug or device payments recorded (2025) ·
(518) 626-5000 Dr. Clyde Collins, M.D.Albany, NY · $188 in drug and device payments (2025) · Telehealth ·
(518) 626-5000 Dr. Domenico Viterbo, MDAlbany, NY · $69 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Elise Malecki, M.D., PH.D. Dr. Henry Pohl, M.D.Albany, NY · No drug or device payments recorded (2025) ·
(518) 262-5276 Dr. James Betzhold, M.D.Albany, NY · No drug or device payments recorded (2025) ·
(518) 262-8831 Dr. James PuleoAlbany, NY · $639 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Jennifer Northrop, M.D. Dr. John Buhac, MDAlbany, NY · $20 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Joseph Choma, MDAlbany, NY · $20 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Joseph Polito, M.D.Albany, NY · $4,209 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Lisa Van Wie, RNAlbany, NY · No drug or device payments recorded (2025) ·
(518) 533-3420 Dr. Lyn Howard, MB, BSAlbany, NY · No drug or device payments recorded (2025) ·
(518) 262-5299 Dr. Mandeep Bhamra, M.D.Albany, NY · $2,749 in drug and device payments (2025) · Telehealth ·
(518) 533-5000 Dr. Matthew Warndorf, M.D.Albany, NY · $181 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Neil Volk, M.D.Albany, NY · $460 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Nina Sax, M.D.Albany, NY · No drug or device payments recorded (2025) ·
(518) 438-4483 Dr. Richard Clift, M.D.Albany, NY · $142 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Richard Macdermott, M.D.Albany, NY · No drug or device payments recorded (2025) ·
(518) 262-5276 Dr. Robert Gianotti, MDAlbany, NY · $886 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Rohit Dhingra, M.D.Albany, NY · $1,249 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Seth Richter, M.D.Albany, NY · $3,095 in drug and device payments (2025) ·
(518) 262-5276 Dr. Shai Posner, MDAlbany, NY · $44 in drug and device payments (2025) · Telehealth ·
(518) 438-4483 Dr. Vittorio Fiorenza, M.D.Albany, NY · No drug or device payments recorded (2025) ·
(518) 438-4483 Dr. William Notis, M.D.Albany, NY · No drug or device payments recorded (2025) ·
(518) 438-4483 Dr. Michael Sitrin, MDAmherst, NY · No drug or device payments recorded (2025) ·
(716) 882-6544 Dr. Theodore Wells, M.D.Amherst, NY · $352 in drug and device payments (2025) ·
(716) 834-6152 Dr. Hamid Rehman, MDAmsterdam, NY · No drug or device payments recorded (2025) ·
(518) 883-8620 Dr. Jay Zimmerman, M.D.Amsterdam, NY · No drug or device payments recorded (2025) ·
(518) 843-1240 Dr. Michael Finnegan, MDAmsterdam, NY · $20 in drug and device payments (2025) ·
(518) 843-1240 Dr. Muhammad Sohail, MDAmsterdam, NY · $142 in drug and device payments (2025) ·
(518) 842-1900 Dr. Andrew Quinn, M.D.Astoria, NY · No drug or device payments recorded (2025) · Telehealth ·
(718) 808-7777 Dr. Barry Obadiah, M.D.Astoria, NY · $2,075 in drug and device payments (2025) · Telehealth ·
(718) 932-6000 Dr. Dan Cimponeriu, MDAstoria, NY · $889 in drug and device payments (2025) · Telehealth ·
(718) 626-2337 Dr. Emanuel Kouroupos, MDAstoria, NY · $673 in drug and device payments (2025) ·
(718) 204-1100 Dr. Gabriel Castillo, MDAstoria, NY · No drug or device payments recorded (2025) ·
(718) 808-7777 Dr. George Surla, MDAstoria, NY · $1,129 in drug and device payments (2025) · Telehealth ·
(718) 626-2337 Dr. Jeffrey Klingenstein, MDAstoria, NY · $930 in drug and device payments (2025) · Telehealth ·
(718) 626-2337 Conditions Gastroenterology providers in New York 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 New York?There are 1,805 Gastroenterology providers with active NPI records practicing in New York, according to federal NPPES data refreshed monthly.
Do Gastroenterology providers in New York offer telehealth?Yes. 726 of the 1,805 Gastroenterology providers in New York (about 40%) report offering telehealth services in CMS data.
Which cities in New York have the most Gastroenterology providers?New York (504), Brooklyn (172), Bronx (82) have the highest concentration of Gastroenterology providers in New York.
How many Gastroenterology providers in New York received drug or device company payments?1,207 of 1,805 Gastroenterology providers in New York (67%) 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 New York 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 New York work in independent practices or large health systems?Among 1,297 Gastroenterologists in New York enrolled in Medicare, 18% bill through a solo or small practice with fewer than 10 clinicians, 17% through a mid-size group of 10 to 99, and 65% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Gastroenterologists in New York work at?According to CMS facility affiliation records, the New York hospitals where the most Gastroenterologists hold privileges are NYU Langone Hospitals in New York; North Shore University Hospital in Manhasset; New York-Presbyterian Hospital in New York.
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