Gastroenterology in Portland, Maine
Data updated monthly · Last refresh September 2026
28 Gastroenterology providers practice in Portland, and 68% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in Portland
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. Adam Winters, MDPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 661-4400 Dr. Alan Kilby, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 773-7964 Dr. Andreas Stefan, M.D.Portland, ME · $787 in drug and device payments (2025) · Telehealth ·
(207) 773-7964 Dr. Andrew Hsu, M.D.Portland, ME · $751 in drug and device payments (2025) ·
(207) 535-1100 Dr. Benjamin Potter, MDPortland, ME · $80 in drug and device payments (2025) ·
(207) 773-7964 Dr. Collin YorkPortland, ME · No drug or device payments recorded (2025) ·
(207) 773-7964 Dr. Cristina Rutherford, M.D.Portland, ME · $358 in drug and device payments (2025) ·
(207) 773-7964 Dr. Curtis Winchenbach, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 773-7078 Dr. Daniil Rolshud, MDPortland, ME · $451 in drug and device payments (2025) ·
(207) 773-7964 Dr. Douglas Howell, MDPortland, ME · $35 in drug and device payments (2025) ·
(207) 773-7964 Dr. Eric Vecchio, MDPortland, ME · $788 in drug and device payments (2025) ·
(207) 773-7964 Dr. Fernando Calmet, M.D.Portland, ME · $163 in drug and device payments (2025) · Telehealth ·
(207) 773-7964 Dr. Gordon Millspaugh, M.D.Portland, ME · $123 in drug and device payments (2025) ·
(207) 773-7964 Dr. James Morse, MDPortland, ME · $140 in drug and device payments (2025) ·
(207) 773-7964 Dr. John Erkkinen, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 773-7964 Dr. Joshua Goldman, M.D.Portland, ME · $94 in drug and device payments (2025) · Telehealth ·
(207) 773-7964 Dr. Kate Kennedy, MDPortland, ME · $301 in drug and device payments (2025) ·
(207) 773-7964 Dr. Kelly Pizzo, M.D.Portland, ME · $278 in drug and device payments (2025) · Telehealth ·
(207) 773-7964 Dr. Luke Chmielecki, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 283-7000 Dr. Marina Kim, D.O.Portland, ME · $1,756 in drug and device payments (2025) ·
(207) 773-7964 Dr. Martin Moehlen, M.D.Portland, ME · $89,665 in drug and device payments (2025) · Telehealth ·
(207) 662-0111 Dr. Matthew Grunwald, M.D.Portland, ME · $421 in drug and device payments (2025) ·
(207) 773-7964 Dr. Michael Roy, M.D.Portland, ME · $121 in drug and device payments (2025) ·
(207) 662-2651 Dr. Newell Augur, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-9223 Dr. Noemi Baffy, MDPortland, ME · $420 in drug and device payments (2025) ·
(207) 773-7964 Dr. Sara ZelmanPortland, ME · No drug or device payments recorded (2025) ·
(207) 879-3000 Dr. Shadab Saboori, MD, MPHPortland, ME · No drug or device payments recorded (2025) ·
(207) 535-1100 Dr. Thalia Mayes, M.D.Portland, ME · $221 in drug and device payments (2025) ·
(207) 773-7964 Conditions Gastroenterology providers in Portland, Maine 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 Portland, Maine?There are 28 Gastroenterology providers with active NPI records practicing in Portland, according to federal NPPES data refreshed monthly.
How many Gastroenterology providers in Portland received drug or device company payments?19 of 28 (68%) 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 Portland treat?Gastroenterology providers in Portland 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 Portland Gastroenterology across Maine
