Internal Medicine in Portland, Maine
Data updated monthly · Last refresh September 2026
145 Internal Medicine providers practice in Portland, and 10% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Internal Medicine 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. Matthew Clark, DOPortland, ME · $18 in drug and device payments (2025) ·
(207) 662-0111 Dr. Matthew Cotton, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-4618 Dr. Meagan Clark, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-4618 Dr. Michael Shuman, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 774-3835 Dr. Michael Tozier, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-4618 Dr. Nananda Col, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-4745 Dr. Nathaniel James, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 662-2911 Dr. Nellie Wood, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-0111 Dr. Nina Trowbridge, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5816 Dr. Pamela Courtney, D.O.Portland, ME · No drug or device payments recorded (2025) ·
(207) 828-2402 Dr. Peter Emery, MDPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 774-5816 Dr. Phyllidia Ku-ruth, MDPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 774-5816 Dr. Rabee Kiwan, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-3157 Dr. Randolph Stein, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 575-5522 Dr. Randolph Thomas, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-4618 Dr. Rebecca LightmanPortland, ME · $24 in drug and device payments (2025) ·
(207) 662-7060 Dr. Reid Andress, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-4618 Dr. Renato Medrano, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 771-3500 Dr. Robert Clinton, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 741-0504 Dr. Robert Fraser, DOPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 774-5816 Dr. Robert MichaudPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 662-7060 Dr. Rosellen Shahidi, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-2911 Dr. Rute Rothwell, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-7060 Dr. Samuel Hunt, DOPortland, ME · $16 in drug and device payments (2025) ·
(517) 648-6702 Dr. Samuel Philip Caper, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 878-0685 Dr. Sarah Subak-krahPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 774-5816 Dr. Scott Cathcart, MDPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 774-5816 Dr. Scott Rusk, MDPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 879-3357 Dr. Sean Lena, DOPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5816 Dr. Shannon Donovan, DOPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-0111 Dr. Shulamith Bonham, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 874-2141 Dr. Spencer Powers, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 662-6562 Dr. Steven Dobieski, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5816 Dr. Steven Hess, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-4618 Dr. Susan Dunn, MDPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 774-5816 Dr. Susan Lee, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 774-5816 Dr. Taylor Mezoian, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-2911 Dr. Thomas Claffey, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5816 Dr. Timothy Baum, MDPortland, ME · $116 in drug and device payments (2025) ·
(207) 774-5816 Dr. Timothy Bender, DOPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-4618 Dr. Timothy Botler, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 662-4618 Dr. Victoria Ashton, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 879-8511 Dr. Wendy Cathcart, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5816 Dr. William Ervin, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5816 Dr. William Talpey, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 662-3157 Conditions Internal Medicine providers in Portland, Maine commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in Portland, Maine?There are 145 Internal Medicine providers with active NPI records practicing in Portland, according to federal NPPES data refreshed monthly.
How many Internal Medicine providers in Portland received drug or device company payments?14 of 145 (10%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Internal Medicine providers in Portland treat?Internal Medicine providers in Portland commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management 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 Internal Medicine across Maine
