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 112 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. Ashley Castaneda, RDH, MPSDental Hygienist1104678416
  2. Jason Castaneda, MDHospitalist Physician1891372587
  3. Laura CastanedaCounselor1932988375
  4. Lisa Castaneda, MDInternal Medicine Physician1639596190
  5. Perla CastanedaStudent in an Organized Health Care Education/Training Program1033569942
  6. Yadira Castaneda Nunez, PAPhysician Assistant1487326575
  7. Analia Castanos-Davis, MA, LMHCMental Health Counselor1821316084
  8. Merylin Castelan, BSWSocial Worker1720515026
  9. Deborah Castellan, CRNACertified Registered Nurse Anesthetist1588626162
  10. Samantha Castellanos McKenneyRegistered Dietitian1417635947
  11. Angela Castellanos Rodriguez, MD, MSCNuclear Medicine Physician1669008538
  12. Michaela Castello, MD, PHDNeurology with Special Qualifications in Child Neurology Physician1952807406
  13. Kimberly CasteloMarriage & Family Therapist1992114789
  14. Aria Castenada, MA-CTechnician1346100708
  15. Scott CastensonPhysical Therapist1083383566
  16. Peter Casterella, M.D.Cardiovascular Disease Physician1063480655
  17. Abraham Castillo, MC14599Interpreter1346859162
  18. Ana CastilloNurse's Aide1679349344
  19. Byanka CastilloTechnician/Technologist1245063387
  20. Caitlin CastilloPediatrics Physician1619779832
  21. Freyton CastilloMental Health Counselor1962972430
  22. Kamalei CastilloMental Health Counselor1255826053
  23. Natalie CastilloCounselor1366019986
  24. Rowen John CastilloCase Manager/Care Coordinator1669108676
  25. Sofia CastilloReflexologist1124499512
  26. William Castillo, LMHC, CDPMental Health Counselor1164864971
  27. Viviana Castillo Contreras, LMHCAMental Health Counselor1346823887
  28. Carlos Castillo Pinto, MDNeurology with Special Qualifications in Child Neurology Physician1659757359
  29. Katherine Castillo-WeisendBehavior Technician1508354812
  30. Linda Castine, RNRegistered Nurse1922579846
  31. Sydney CastleSocial Worker1477439594
  32. Brooke Castleberry, MSW, AACClinical Social Worker1437629607
  33. Brandi Casto, PHDClinical Psychologist1588018147
  34. Stact CastoHome Health Registered Nurse1649424128
  35. Mei Castor, MDFamily Medicine Physician1093783037
  36. Sean Castor, LMPSpecialist1962531798
  37. Kerry Castorina, MOTOccupational Therapist1497923965
  38. Joel Castrellon, CRNACertified Registered Nurse Anesthetist1285034371
  39. Arturo Castro, MDMilitary Health Care Provider1033196845
  40. Cassandra CastroPsychiatric/Mental Health Nurse Practitioner1720640428
  41. Glebennette Castro, LMPMassage Therapist1649423831
  42. Maria Castro Bacca, MS, RDRegistered Dietitian1538924188
  43. Isabel Beatriz Castro DavilaDoula1033902861
  44. Chloe CaswellCounselor1891303418
  45. Princess Dana Catacutan, RN, BSNRegistered Nurse1053114041
  46. Colleen Catalano, PHARMD, RPHPharmacist1396811832
  47. Matthew CatalanoCounselor1275384497
  48. Carin Catalano-HutmacherMental Health Counselor1437336351
  49. Matthew Cataldo, MDHospitalist Physician1124681838
  50. Michael CataldoHospitalist Physician1952792400

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.