Healthcare Providers & Facilities in Portland, ME
Public healthcare directory of 6,053 individual practitioners and 1,050 healthcare facilities located in Portland, Maine.
Medical Specialties in Portland
Select a specialty to view practitioner listings, practice locations, and qualifications.
Social Worker - Clinical
Student in an Organized Health Care Education/Training Program
Physician Assistant
Nurse Anesthetist, Certified Registered
Physical Therapist
Speech-Language Pathologist
Pharmacist
Internal Medicine
Nurse Practitioner - Family
Occupational Therapist
Anesthesiology
Emergency Medicine
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.
Allopathic & Osteopathic Physicians
- Allergy & Immunology (5)
- Anesthesiology - Critical Care Medicine (5)
- Colon & Rectal Surgery (5)
- Dermatology (22)
- Family Medicine (89)
- Family Medicine - Addiction Medicine (6)
- Family Medicine - Geriatric Medicine (10)
- Family Medicine - Sports Medicine (5)
- Hospitalist (81)
- Internal Medicine - Cardiovascular Disease (17)
- Internal Medicine - Critical Care Medicine (9)
- Internal Medicine - Gastroenterology (28)
- Internal Medicine - Geriatric Medicine (6)
- Internal Medicine - Infectious Disease (5)
- Internal Medicine - Nephrology (24)
- Obstetrics & Gynecology (49)
- Obstetrics & Gynecology - Maternal & Fetal Medicine (5)
- Ophthalmology (30)
- Orthopaedic Surgery (26)
- Otolaryngology (9)
- Pathology - Anatomic Pathology & Clinical Pathology (23)
- Pediatrics (76)
- Pediatrics - Developmental - Behavioral Pediatrics (6)
- Pediatrics - Neonatal-Perinatal Medicine (13)
- Pediatrics - Pediatric Critical Care Medicine (7)
- Pediatrics - Pediatric Endocrinology (6)
- Pediatrics - Pediatric Gastroenterology (10)
- Physical Medicine & Rehabilitation (10)
- Psychiatry & Neurology - Child & Adolescent Psychiatry (18)
- Psychiatry & Neurology - Psychiatry (93)
- Radiology - Diagnostic Radiology (61)
- Radiology - Radiation Oncology (10)
- Radiology - Vascular & Interventional Radiology (12)
- Surgery (48)
- Surgery - Pediatric Surgery (8)
- Surgery - Surgical Critical Care (10)
- Surgery - Vascular Surgery (7)
- Thoracic Surgery (Cardiothoracic Vascular Surgery) (9)
Behavioral Health & Social Service Providers
- Behavior Analyst (19)
- Behavior Technician (20)
- Clinical Neuropsychologist (5)
- Counselor (31)
- Counselor - Addiction (Substance Use Disorder) (92)
- Counselor - Mental Health (188)
- Counselor - Professional (163)
- Marriage & Family Therapist (26)
- Psychologist (45)
- Psychologist - Clinical (70)
- Psychologist - Clinical Child & Adolescent (6)
- Psychologist - Counseling (9)
- Social Worker (92)
Chiropractic Providers
- Chiropractor (34)
Dental Providers
Dietary & Nutritional Service Providers
Eye and Vision Services Providers
- Optometrist (26)
Nursing Service Providers
Nursing Service Related Providers
- Home Health Aide (11)
Other Service Providers
- Acupuncturist (29)
- Case Manager/Care Coordinator (8)
- Contractor (5)
- Genetic Counselor, MS (5)
- Midwife (5)
- Naturopath (14)
- Specialist (45)
Pharmacy Service Providers
Physician Assistants & Advanced Practice Nursing Providers
- Advanced Practice Midwife (19)
- Clinical Nurse Specialist - Psychiatric/Mental Health (5)
- Nurse Practitioner (64)
- Nurse Practitioner - Acute Care (66)
- Nurse Practitioner - Adult Health (32)
- Nurse Practitioner - Neonatal (19)
- Nurse Practitioner - Neonatal, Critical Care (5)
- Nurse Practitioner - Pediatrics (17)
- Nurse Practitioner - Psychiatric/Mental Health (71)
- Nurse Practitioner - Women's Health (15)
- Physician Assistant - Medical (34)
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
Dr. Nikolai Renedo , MD
Student in an Organized Health Care Education/Training Program
Dr. Rebecca Hutchinson , MD
Internal Medicine - Hospice and Palliative Medicine
Robert Klotz , PA
Physician Assistant
Dr. Christina Tsui , DO
Internal Medicine
Dr. Kristen Kelliher , DO
Student in an Organized Health Care Education/Training Program
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
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.