Medicare providers in Oregon

41,550 unique NPIs are enrolled in Medicare in Oregon, number 27 of 51. Practitioners in the 81 specialties tracked here account for 34,233 of them; the largest is nurse practitioner (4,847), and nurse practitioners outnumber family-practice physicians 2.1 to 1.

Look up an NPI

1Enrolled NPIs 41,550
2Largest specialty Nurse Practitioner
3Rank of 51 #27
4Specialties present 81

Medicare-enrolled practitioners in Oregon by specialty, 15 largest, bars to scale. Source: CMS PPEF, 2026-09-29.

Every specialty in Oregon

Each figure is the number of NPIs enrolled in Medicare in Oregon under that specialty, beside its share of the specialty's national total.

Specialty	OR	Share of US
Nurse Practitioner	4,847	1.3%
Physician Assistant	3,165	1.8%
Family Practice	2,316	2%
Physical Therapist in Private Practice	2,191	1.9%
Clinical Social Worker	2,087	2.1%
Internal Medicine	1,850	1.4%
Mental Health Counselor	1,706	2.4%
Emergency Medicine	1,288	2%
Anesthesiology	966	1.9%
Certified Registered Nurse Anesthetist (CRNA)	940	1.5%
Optometry	795	1.7%
Chiropractic	791	1.7%
Diagnostic Radiology	782	2%
Pediatric Medicine	780	1.4%
Obstetrics/Gynecology	693	1.6%
Clinical Psychologist	690	1.9%
Psychiatry	599	1.6%
Neurology	528	2.5%
General Surgery	500	1.8%
Hospitalist	476	1.6%
Orthopedic Surgery	417	1.6%
Ophthalmology	377	1.8%
Certified Nurse Midwife (Cnm)	308	3.2%
Cardiovascular Disease (Cardiology)	303	1.2%
Marriage and Family Therapist	296	1.9%
Occupational Therapist in Private Practice	286	1.2%
Registered Dietitian or Nutrition Professional	268	2.4%
Gastroenterology	242	1.3%
Dermatology	235	1.6%
Pathology	224	1.5%
Podiatry	216	1.2%
Urology	201	1.7%
Qualified Speech Language Pathologist	183	1.3%
Otolaryngology	183	1.6%
Qualified Audiologist	170	1.4%
Pulmonary Disease	166	1.2%
Hematology/Oncology	150	1.2%
Radiation Oncology	131	2.2%
Nephrology	129	1.2%
Physical Medicine and Rehabilitation	125	1.1%
Neurosurgery	121	1.8%
Medical Oncology	102	2%
Interventional Cardiology	94	1.6%
Infectious Disease	91	1.1%
Endocrinology	88	1%
Rheumatology	83	1.3%
Plastic and Reconstructive Surgery	77	1.3%
Critical Care (Intensivists)	70	0.9%
Hospice/Palliative Care	62	2.1%
Vascular Surgery	61	1.3%
Interventional Radiology	53	1.4%
Thoracic Surgery	48	1.3%
Allergy/Immunology	43	1%
Other (Non-Physician)	43	10.9%
Cardiac Electrophysiology	42	1.4%
Sleep Medicine	41	3.1%
General Practice	39	0.4%
Dentist	39	0.6%
Gynecological Oncology	37	2.7%
Colorectal Surgery (Proctology)	33	1.6%
Hand Surgery	31	1.6%
Pain Management	28	0.8%
Sports Medicine	26	1%
Interventional Pain Management	26	1.4%
Preventive Medicine	26	2.5%
Geriatric Medicine	25	0.9%
Oral Surgery	24	0.7%
Other (Physician)	24	4.7%
Osteopathic Manipulative Medicine	21	1.9%
Surgical Oncology	20	1.2%
Cardiac Surgery	19	1.1%
Certified Clinical Nurse Specialist (Cns)	14	0.6%
Addiction Medicine	14	1.8%
Hematology	13	1%
Micrographic Dermatologic Surgery (Mds)	13	2.1%
Maxillofacial Surgery	12	1.1%
Psychologist Billing Independently	8	0.8%
Medical Genetics and Genomics	8	1.7%
Nuclear Medicine	7	0.9%
Advanced Heart Failure and Transplant Cardiology	6	0.6%
Neuropsychiatry	1	0.2%

Source: CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29; unique NPIs per state. Checked 2026-10-24. Methodology.