NPPES file of Aug 9, 2026

Doctors and health care providers in Seattle, WA

41,956 individual NPPES records list a practice address in Seattle, 1st of 261 Washington cities. The largest group is mental health counselor: 3,142, 7% of the city's records, against 9% across Washington. Page 111 of 840.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Seattle

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Seattle in Washington

  • Rank in Washington1st of 261 cities by records
  • Share of the state20.5% of Washington's records
  • Specialties present25 or more taxonomy codes
  • Top three groups18.7% of all records
  • Mental Health Counselor rank1st of the 10 Washington cities with the most

Compared with Washington as a whole, Seattle has 2.3× the state's share of student in an organized health care education/training program records and 0.32× its share of behavior technician records.

Providers in Seattle, alphabetically

  1. Jen Casebeer, ARNPFamily Nurse Practitioner1063957835
  2. Crystal Caseley, CMATechnician1912592361
  3. Adam Casey, OMS-IVStudent in an Organized Health Care Education/Training Program1255135224
  4. Anna CaseySchool Psychologist1548608607
  5. Annemarie CaseyHome Health Registered Nurse1427823160
  6. Erica Casey, M.D.Emergency Medicine Physician1346361086
  7. Jessica Casey, PTA, ATCAthletic Trainer1700277068
  8. Jillene Casey, M.D.Family Medicine Physician1013140508
  9. Nancy Casey, PTPhysical Therapist1831138379
  10. Shannon CaseyPhysician Assistant1497283287
  11. Stephanie Casey, MA, LMHCMental Health Counselor1427641216
  12. Susan Casey, RD, CDRegistered Dietitian1285726240
  13. Marie Casey-Burke, ARNPFamily Nurse Practitioner1528138930
  14. Mishell Cash, LMTNaturopath1780804138
  15. Elizabeth CashionMental Health Counselor1285300178
  16. Daniel Cashman, EAMPAcupuncturist1972872208
  17. Margaret Cashman, MD ACPPsychiatry Physician1366444325
  18. Leslie Casias, AP 60509991Acute Care Nurse Practitioner1699085308
  19. Ralph CasillasMental Health Counselor1417499682
  20. Karen Casillas-TapiaCounselor1538803226
  21. Cecil Casimir, PTPhysical Therapist1780791632
  22. Keshia Casimir, O.D.Optometrist1073754511
  23. Melissa Casimir, PTPhysical Therapist1093811887
  24. Laura Caskey, RDNRegistered Dietitian1013547579
  25. Ronelle Caskey, ARNPPediatric Nurse Practitioner1962412437
  26. Catherine Casner, PA-CPhysician Assistant1659750461
  27. Nina CasoCounselor1366140709
  28. Stephen Casowitz, PA-CPhysician Assistant1013245851
  29. Corey Casper, MDInfectious Disease Physician1912087990
  30. Glen Casper, M.A.Mental Health Counselor1154420131
  31. Tracy Casper, CRNACertified Registered Nurse Anesthetist1437196763
  32. Susan Casperson, ARNPAdult Health Nurse Practitioner1558898411
  33. Ryan Cassaday, M.D.Hematology & Oncology Physician1508060583
  34. Harisa Cassano, LICSWClinical Social Worker1770222119
  35. Ellen Cassen, ARNP, CNMAdvanced Practice Midwife1396965869
  36. Maria Cassera, MDHospitalist Physician1124582291
  37. Apollos CassianCounselor1851019392
  38. Audrey CassidyCommunity Health Registered Nurse1699456210
  39. Brendan CassidyPhysical Therapist1871823351
  40. Janine Cassidy, ARNP-CSPediatric Nurse Practitioner1104474519
  41. Kevin CassidyCounselor1730500224
  42. Sara Cassidy, DDSDentist1396975660
  43. Stephen Cassidy, M.D.Anesthesiology Physician1316471444
  44. David Cassius, M.D.Pain Medicine (Physical Medicine & Rehabilitation) Physician1194884940
  45. Robert Cassman, MDInternal Medicine Physician1861458556
  46. Tiffany Cassner, M.A., NCCMental Health Counselor1679900575
  47. Amy Cassotta, ANP-CAdult Health Nurse Practitioner1548567779
  48. Kyle Castagno, MTMassage Therapist1336642982
  49. Nicole Castagno, M,D., M.S.Family Medicine Physician1285160267
  50. Antoinette Castaneda, ARNPNurse Practitioner1205559937

The largest Washington cities

  1. Spokane14,049
  2. Tacoma13,715
  3. Vancouver10,772
  4. Everett7,246
  5. Bellevue6,738

All of Washington →

How to read this directory

Seattle, Washington appears in the CMS National Plan and Provider Enumeration System with 41,956 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Seattle - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Seattle practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Seattle is weighted toward Mental Health Counselor (3,142 clinicians, followed by Student in an Organized Health Care Education/Training Program with 2,415 and Counselor with 2,278). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Washington's population, Seattle reports roughly 537 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Of Washington's most common specialties, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Seattle practice address, a coverage gap Seattle patients typically fill by traveling to a larger nearby hub.

For Seattle patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Seattle, WA?

There are 41,956 registered healthcare providers in Seattle, WA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Seattle?

The most common specialties in Seattle are Mental Health Counselor, Student in an Organized Health Care Education/Training Program, Counselor, Massage Therapist, Clinical Social Worker. Mental Health Counselor has the most providers with 3,142.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.