Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Healthcare Providers & Facilities in Portland, ME

Public healthcare directory of 6,053 individual practitioners and 1,050 healthcare facilities located in Portland, Maine.

6,053 Practitioners
1,050 Facilities
266 Specialties

Medical Specialties in Portland

Select a specialty to view practitioner listings, practice locations, and qualifications.

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All Specialties in Portland

Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 219 more with at least one listed practitioner. Number of practitioners in brackets.

Chiropractic Providers

Dietary & Nutritional Service Providers

Eye and Vision Services Providers

Nursing Service Related Providers

Podiatric Medicine & Surgery Service Providers

Respiratory, Developmental, Rehabilitative and Restorative Service Providers

Speech, Language and Hearing Service Providers

Featured Healthcare Providers in Portland

Practitioner profiles in Portland, ME with recent CMS Medicare or Open Payments data.

Dr. Christina Rizk , DMD

Student in an Organized Health Care Education/Training Program

190 Park Ave, Portland, ME
Phone: 6178994677
NPI 1083272173

Dr. Nikolai Renedo , MD

Student in an Organized Health Care Education/Training Program

Medicare Accepted
Maine Medical Center, Portland, ME
Phone: 2076620111
NPI 1760061543

Dr. Rebecca Hutchinson , MD

Internal Medicine - Hospice and Palliative Medicine

Medicare Accepted
22 Bramhall St, Portland, ME
Phone: 6177802964
NPI 1215083068

Robert Klotz , PA

Physician Assistant

1375 Congress St, Portland, ME
Phone: 2077724203
NPI 1467447847

Dr. Christina Tsui , DO

Internal Medicine

Medicare Accepted
22 Bramhall St, Portland, ME
Phone: 2076620111
NPI 1013593763

Dr. Kristen Kelliher , DO

Student in an Organized Health Care Education/Training Program

22 Bramhall St, Portland, ME
Phone: 2076620111
NPI 1497457881

Largest Cities in Maine

Other Maine cities with a full directory, by the number of active practitioners listed in NPPES.

How Portland compares with the U.S.

Compared with the U.S. as a whole, Portland has more clinicians in Neuromusculoskeletal Medicine & OMM (49.5x), clinicians in Physician Assistant - Surgical (18.7x) and clinicians in Dentist - Prosthodontics (15.2x) per 100,000 residents.

Portland has 8,791 active clinicians per 100,000 residents, compared with 2,198 for the U.S.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

94% of clinicians in Portland listed in the CMS Medicare file (1,886 of 2,009) accept Medicare assignment. That is similar to the Maine share of 93%.

Only 2,009 of 6,053 active clinicians in Portland appear in the CMS Medicare file, so this share describes that smaller group.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

17% of clinicians in Portland listed in the CMS Medicare file (349 of 2,009) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Maine share of 19%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Portland CMS Healthcare & Financial Disclosures

CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Portland, ME

Source: CMS public datasets

Healthcare operations in Portland, ME encompass 6,053 active individual practitioners and 1,050 registered medical facilities across 266 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in Portland accounts for $136.4 Million across 809,322 prescription claims. 2,877 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $1.0 Million in payments reported by companies to 498 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $136.4M 809,322 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $1.0M 498 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 2,877 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $68.5M 1,335,785 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in Portland

Part B Lab & Imaging Eligible: 2,448
Durable Medical Equipment (DME): 2,602
Home Health Agency (HHA): 2,082
Source: CMS Order and Referring