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Gastroenterologists in Connecticut

Data updated monthly · Last refresh October 2026

341 Gastroenterology providers practice in Connecticut, including 153 (45%) offering telehealth. The largest concentration is in New Haven. 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.

341providers
153telehealth
New Haventop city

Gastroenterology by city in Connecticut

Choose a city to see providers there.

Gastroenterology in New Haven76 providers
Gastroenterology in Farmington21 providers
Gastroenterology in Hamden19 providers
Gastroenterology in Hartford19 providers
Gastroenterology in Danbury17 providers
Gastroenterology in Norwalk13 providers
Gastroenterology in Middletown11 providers
Gastroenterology in Waterbury11 providers
Gastroenterology in Stamford10 providers
Gastroenterology in Trumbull9 providers
Gastroenterology in Meriden9 providers
Gastroenterology in Torrington9 providers
Gastroenterology in Greenwich9 providers
Gastroenterology in New Britain7 providers
Gastroenterology in Avon7 providers
Gastroenterology in Bristol7 providers
Gastroenterology in West Haven7 providers
Gastroenterology in Branford6 providers
Gastroenterology in Norwich6 providers
Gastroenterology in New London5 providers
Gastroenterology in Glastonbury5 providers
Gastroenterology in Bloomfield5 providers
Gastroenterology in Manchester5 providers
Gastroenterology in Ansonia5 providers

Gastroenterology providers in Connecticut

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. Jeffrey Kwan, M.D.
Hamden, CT · $1,470 in drug and device payments (2025) · Telehealth · (203) 281-4463
Dr. Jennifer Thompson, MD
Hamden, CT · No drug or device payments recorded (2025) · (203) 281-4463
Dr. Jeremy Matloff, M.D.
Hamden, CT · $755 in drug and device payments (2025) · (203) 281-4463
Dr. Joseph Soucy
Hamden, CT · $1,823 in drug and device payments (2025) · (203) 281-4463
Dr. Karl Langberg, M.D.
Hamden, CT · $6,613 in drug and device payments (2025) · (203) 281-4463
Dr. Mark Taylor, MD
Hamden, CT · $1,805 in drug and device payments (2025) · (203) 281-4463
Dr. Paul Feuerstadt, M.D.
Hamden, CT · $269,905 in drug and device payments (2025) · Telehealth · (203) 281-4463
Dr. Ramnath Hebbar, MD
Hamden, CT · $1,133 in drug and device payments (2025) · Telehealth · (203) 281-4463
Dr. Renuka Umashanker, MD
Hamden, CT · $63,607 in drug and device payments (2025) · Telehealth · (203) 281-4463
Dr. Ronald Vender, MD
Hamden, CT · $19 in drug and device payments (2025) · (203) 281-4463
Dr. Tai Hang Ho, M.D.
Hamden, CT · $2,380 in drug and device payments (2025) · (203) 281-4463
Dr. Colin Swales, MD
Hartford, CT · $111,691 in drug and device payments (2025) · Telehealth · (860) 246-2571
Dr. David Chaletsky, MD
Hartford, CT · $2,152 in drug and device payments (2025) · Telehealth · (860) 246-2571
Dr. Jeffry Nestler, MD
Hartford, CT · $1,246 in drug and device payments (2025) · Telehealth · (860) 246-2571
Dr. Jonathan Williamson, M.D.
Hartford, CT · $2,118 in drug and device payments (2025) · Telehealth · (860) 246-2571
Dr. Kofi Atta-mensah, M.D.
Hartford, CT · No drug or device payments recorded (2025) · (860) 714-2992
Dr. Kristin Marcous, PA
Hartford, CT · $5,579 in drug and device payments (2025) · Telehealth · (860) 246-2571
Dr. Lisa Rossi, M.D.
Hartford, CT · $11,042 in drug and device payments (2025) · (860) 522-1171
Dr. Maria Johnson, M.D.
Hartford, CT · $577 in drug and device payments (2025) · Telehealth · (860) 246-2571
Dr. Martin Hoffman, D.O.
Hartford, CT · $108,237 in drug and device payments (2025) · (860) 522-1171
Dr. Michael Butensky, M.D.
Hartford, CT · $527 in drug and device payments (2025) · (860) 522-1171
Dr. Michael Einstein, M.D.
Hartford, CT · $28,660 in drug and device payments (2025) · Telehealth · (860) 246-2571
Dr. Michael Golioto, MD
Hartford, CT · $1,323 in drug and device payments (2025) · Telehealth · (860) 246-2571
Dr. Michael Karasik, MD
Hartford, CT · $986 in drug and device payments (2025) · Telehealth · (860) 246-2571
Dr. Michael Selden, M.D.
Hartford, CT · $1,815 in drug and device payments (2025) · Telehealth · (860) 508-7118
Dr. Nancy Kang, M.D.
Hartford, CT · $2,198 in drug and device payments (2025) · (860) 522-1171
Dr. Nihal Patel, MD
Hartford, CT · $2,383 in drug and device payments (2025) · Telehealth · (860) 246-2571
Dr. Robert Blitzer, MD
Hartford, CT · $22 in drug and device payments (2025) · (860) 545-2791
Dr. Teresa Da Cunha, MD
Hartford, CT · $154 in drug and device payments (2025) · (860) 972-0200
Dr. Yousaf Shaikh, MD
Hartford, CT · $1,417 in drug and device payments (2025) · (860) 522-1171
Dr. James O'brien, MD
Manchester, CT · $1,299 in drug and device payments (2025) · (860) 649-3477
Dr. Khadijat Balogun, M.D
Manchester, CT · $1,762 in drug and device payments (2025) · (860) 649-3477
Dr. Peter Buch, MD
Manchester, CT · No drug or device payments recorded (2025) · (860) 649-3477
Dr. Robert Schwartz, M.D.
Manchester, CT · No drug or device payments recorded (2025) · (860) 643-8000
Dr. Rohit Singhania, M.D.
Manchester, CT · $7,441 in drug and device payments (2025) · Telehealth · (860) 649-3477
Dr. Steven Stein, M.D.
Mansfield Center, CT · No drug or device payments recorded (2025) · (860) 456-1813
Dr. Douglas Miller, M.D.
Meriden, CT · No drug or device payments recorded (2025) · (203) 886-0036
Dr. Gary Cohen, M.D.
Meriden, CT · No drug or device payments recorded (2025) · (203) 886-0036
Dr. Housein Wazaz, M.D.
Meriden, CT · $20,503 in drug and device payments (2025) · Telehealth · (203) 237-2477
Dr. Janet Dickinson, MD
Meriden, CT · No drug or device payments recorded (2025) · (203) 237-9445
Dr. Jonathan White, M.D.
Meriden, CT · $699 in drug and device payments (2025) · Telehealth · (203) 886-0036
Dr. Jon Ernstoff, M.D.
Meriden, CT · No drug or device payments recorded (2025) · (203) 886-0036
Dr. Kevin Jo, M.D.
Meriden, CT · $1,075 in drug and device payments (2025) · (203) 886-0036
Dr. Lawrence Kogan, MD
Meriden, CT · $555 in drug and device payments (2025) · Telehealth · (203) 626-6250
Dr. Madhavi Bhoomagoud, MD
Meriden, CT · $1,524 in drug and device payments (2025) · (203) 237-2477
Dr. Angelo Paredes, M.D.
Middletown, CT · $10,629 in drug and device payments (2025) · (860) 347-4620
Dr. Antonios Sapounas, MD
Middletown, CT · No drug or device payments recorded (2025) · (860) 347-4620
Dr. Edmund Chung, MD
Middletown, CT · $73 in drug and device payments (2025) · (860) 347-4620
Dr. Gregor Koobatian, MD
Middletown, CT · $509 in drug and device payments (2025) · (860) 347-4620
Dr. Homaira Rasool, DO
Middletown, CT · $426 in drug and device payments (2025) · (860) 347-4620

Conditions Gastroenterology providers in Connecticut 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 Connecticut?

There are 341 Gastroenterology providers with active NPI records practicing in Connecticut, according to federal NPPES data refreshed monthly.

Do Gastroenterology providers in Connecticut offer telehealth?

Yes. 153 of the 341 Gastroenterology providers in Connecticut (about 45%) report offering telehealth services in CMS data.

Which cities in Connecticut have the most Gastroenterology providers?

New Haven (76), Farmington (21), Hamden (19) have the highest concentration of Gastroenterology providers in Connecticut.

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

216 of 341 Gastroenterology providers in Connecticut (63%) 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 Connecticut 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 Connecticut work in independent practices or large health systems?

Among 239 Gastroenterologists in Connecticut enrolled in Medicare, 5% bill through a solo or small practice with fewer than 10 clinicians, 5% through a mid-size group of 10 to 99, and 90% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Gastroenterologists in Connecticut work at?

According to CMS facility affiliation records, the Connecticut hospitals where the most Gastroenterologists hold privileges are Yale-New Haven Hospital in New Haven; Bridgeport Hospital in Bridgeport; Hartford Hospital in Hartford.

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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 Connecticut? Get featured.