Medicare providers in Washington

69,338 unique NPIs are enrolled in Medicare in Washington, number 14 of 51. Practitioners in the 83 specialties tracked here account for 58,187 of them; the largest is nurse practitioner (8,973), and nurse practitioners outnumber family-practice physicians 2 to 1.

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1Enrolled NPIs 69,338
2Largest specialty Nurse Practitioner
3Rank of 51 #14
4Specialties present 83

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

Every specialty in Washington

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

Specialty	WA	Share of US
Nurse Practitioner	8,973	2.5%
Physician Assistant	5,064	2.9%
Family Practice	4,571	3.9%
Physical Therapist in Private Practice	4,538	4%
Internal Medicine	2,981	2.3%
Mental Health Counselor	2,083	2.9%
Clinical Social Worker	2,024	2%
Emergency Medicine	1,985	3.1%
Pediatric Medicine	1,785	3.2%
Diagnostic Radiology	1,751	4.6%
Anesthesiology	1,603	3.2%
Chiropractic	1,534	3.3%
Optometry	1,330	2.9%
Certified Registered Nurse Anesthetist (CRNA)	1,200	1.9%
Obstetrics/Gynecology	1,177	2.8%
Hospitalist	1,018	3.5%
Psychiatry	950	2.6%
Clinical Psychologist	931	2.6%
Neurology	822	3.8%
Orthopedic Surgery	731	2.7%
General Surgery	729	2.6%
Occupational Therapist in Private Practice	558	2.3%
Cardiovascular Disease (Cardiology)	533	2.2%
Ophthalmology	531	2.6%
Gastroenterology	470	2.6%
Registered Dietitian or Nutrition Professional	457	4%
Dermatology	419	2.8%
Certified Nurse Midwife (Cnm)	419	4.3%
Hematology/Oncology	399	3.3%
Pathology	366	2.5%
Marriage and Family Therapist	354	2.3%
Podiatry	353	2%
Otolaryngology	353	3.1%
Qualified Audiologist	344	2.9%
Urology	339	2.9%
Pulmonary Disease	331	2.4%
Physical Medicine and Rehabilitation	300	2.7%
Nephrology	274	2.5%
Infectious Disease	265	3.2%
Qualified Speech Language Pathologist	263	1.8%
Radiation Oncology	206	3.5%
Neurosurgery	193	2.9%
Endocrinology	178	2.1%
Critical Care (Intensivists)	168	2.1%
Rheumatology	166	2.6%
Interventional Cardiology	159	2.8%
Medical Oncology	137	2.7%
Vascular Surgery	136	2.9%
General Practice	121	1.3%
Hospice/Palliative Care	114	3.8%
Plastic and Reconstructive Surgery	112	1.9%
Dentist	96	1.6%
Allergy/Immunology	93	2.2%
Thoracic Surgery	89	2.5%
Interventional Radiology	81	2.2%
Pain Management	75	2%
Sports Medicine	73	2.7%
Geriatric Medicine	72	2.7%
Hand Surgery	67	3.4%
Cardiac Electrophysiology	63	2.1%
Sleep Medicine	63	4.7%
Gynecological Oncology	53	3.9%
Oral Surgery	52	1.4%
Other (Physician)	52	10.1%
Colorectal Surgery (Proctology)	48	2.3%
Cardiac Surgery	46	2.7%
Preventive Medicine	43	4.1%
Osteopathic Manipulative Medicine	34	3%
Surgical Oncology	31	1.9%
Interventional Pain Management	30	1.7%
Hematology	28	2.1%
Nuclear Medicine	26	3.5%
Advanced Heart Failure and Transplant Cardiology	25	2.4%
Medical Genetics and Genomics	22	4.7%
Addiction Medicine	20	2.5%
Epileptologists	20	5.5%
Psychologist Billing Independently	17	1.7%
Neuropsychiatry	17	3.9%
Certified Clinical Nurse Specialist (Cns)	12	0.5%
Other (Non-Physician)	12	3%
Micrographic Dermatologic Surgery (Mds)	11	1.8%
Maxillofacial Surgery	10	0.9%
Anesthesiology Assistant	8	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.