598 Internal Medicine providers practice in Maine, including 96 (16%) offering telehealth. The largest concentration is in Portland. 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.
Choose a city to see providers there.
| Internal Medicine in Portland | 145 providers |
| Internal Medicine in Bangor | 61 providers |
| Internal Medicine in Biddeford | 35 providers |
| Internal Medicine in Lewiston | 31 providers |
| Internal Medicine in Augusta | 22 providers |
| Internal Medicine in Brunswick | 18 providers |
| Internal Medicine in Rockport | 17 providers |
| Internal Medicine in Bath | 15 providers |
| Internal Medicine in Scarborough | 13 providers |
| Internal Medicine in Westbrook | 12 providers |
| Internal Medicine in Kennebunk | 11 providers |
| Internal Medicine in Sanford | 11 providers |
| Internal Medicine in Skowhegan | 10 providers |
| Internal Medicine in Norway | 10 providers |
| Internal Medicine in Farmington | 10 providers |
| Internal Medicine in Ellsworth | 10 providers |
| Internal Medicine in Falmouth | 9 providers |
| Internal Medicine in Presque Isle | 9 providers |
| Internal Medicine in Waterville | 9 providers |
| Internal Medicine in Belfast | 8 providers |
| Internal Medicine in Auburn | 8 providers |
| Internal Medicine in Damariscotta | 7 providers |
| Internal Medicine in Windham | 7 providers |
| Internal Medicine in Caribou | 7 providers |
From CMS Medicare enrollment records covering 325 of the 598 providers listed here (54%). Providers who do not bill Medicare are not included in these figures.
| Group (as registered with Medicare) | Internal Medicine Doctors | All clinicians in group | Main city |
| Mainehealth | 162 | 2,616 | Portland |
| Eastern Maine Medical Center | 25 | 659 | Bangor |
| Intermed PA | 20 | 185 | South Portland |
| Central Maine Medical Center | 17 | 344 | Lewiston |
| Mainegeneral Medical Center | 13 | 554 | Augusta |
| Hospital | City | Ownership | CMS star rating | Internal Medicine Doctors affiliated |
| Mainehealth Maine Medical Center | Portland | Nonprofit | 4 of 5 | 183 |
| Northern Light Eastern Maine Medical Center | Bangor | Nonprofit | 5 of 5 | 51 |
| Northern Light Mercy Hospital | Portland | Nonprofit | 4 of 5 | 43 |
| Mainehealth Mid Coast Hospital | Brunswick | Nonprofit | 3 of 5 | 37 |
| Lincolnhealth | Damariscotta | Nonprofit | 3 of 5 | 29 |
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.
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.
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.
There are 598 Internal Medicine providers with active NPI records practicing in Maine, according to federal NPPES data refreshed monthly.
Yes. 96 of the 598 Internal Medicine providers in Maine (about 16%) report offering telehealth services in CMS data.
Portland (145), Bangor (61), Biddeford (35) have the highest concentration of Internal Medicine providers in Maine.
63 of 598 Internal Medicine providers in Maine (11%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Internal Medicine providers 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.
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.
Among 325 Internal Medicine Doctors in Maine enrolled in Medicare, 7% bill through a solo or small practice with fewer than 10 clinicians, 12% through a mid-size group of 10 to 99, and 81% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
According to CMS facility affiliation records, the Maine hospitals where the most Internal Medicine Doctors hold privileges are Mainehealth Maine Medical Center in Portland; Northern Light Eastern Maine Medical Center in Bangor; Northern Light Mercy Hospital in Portland.
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