NPPES file of Aug 9, 2026

Doctors and health care providers in Eureka, CA

2,854 individual NPPES records list a practice address in Eureka, 79th of 812 California cities. The largest group is case manager/care coordinator: 492, 17% of the city's records, against 2% across California. Page 3 of 58.

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

Eureka in California

  • Rank in California79th of 812 cities by records
  • Share of the state0.3% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups30.3% of all records
  • Case Manager/Care Coordinator rank10th of the 10 California cities with the most

Compared with California as a whole, Eureka has 27.3× the state's share of psychiatric/mental health registered nurse records and 0.15× its share of behavior technician records.

Providers in Eureka, alphabetically

  1. Krystal ArnotCase Manager/Care Coordinator1013148790
  2. Peter Aronson, PA-CPhysician Assistant1891891479
  3. Chaz ArringtonCounselor1891923694
  4. John Aryanpur, M.D.Neurological Surgery Physician1578616686
  5. Adina Ascher, LCSW, PHDClinical Social Worker1376973586
  6. Shareena AscherHealth & Wellness Coach1477486736
  7. Madison AshcraftCommunity Health Worker1598591463
  8. Brandy AsherCase Manager/Care Coordinator1497155451
  9. Eliza AshleyClinical Social Worker1114702180
  10. Nathan Ask, B.A.Specialist1669508461
  11. Jenna Askay, BSW, MSW, ASWCounselor1710439880
  12. Rebecca Atigedewe, MSW INTERNClinical Social Worker1194851972
  13. Nels AtkinsonMarriage & Family Therapist1841327657
  14. Liza Auerbach, PSYCHOLOGISTClinical Psychologist1962650580
  15. Janeil Aultman, RNPsychiatric/Mental Health Registered Nurse1568966679
  16. Julienne Aulwes, M.D.Psychiatry Physician1114123213
  17. Nyx AustinPeer Specialist1659943751
  18. Jimmie Ray Austin Jr.Case Manager/Care Coordinator1386992857
  19. Rocio AvilaCase Manager/Care Coordinator1437509239
  20. Tiffany Avila Powell, MDNeurological Surgery Physician1528275864
  21. Mohd Awwad, DDSGeneral Practice Dentistry1508857673
  22. Karen Ayers, ACNPAcute Care Nurse Practitioner1730284332
  23. Gaye Ayton, M.A., M.F.T.Marriage & Family Therapist1497976302
  24. Lianna BabautaCase Manager/Care Coordinator1376250670
  25. Amanda BabbittBehavior Analyst1134607930
  26. Marc Princely BacarroStudent in an Organized Health Care Education/Training Program1033913348
  27. Piers Bachman, LVNLicensed Vocational Nurse1912653304
  28. John Backus, PHARMDPharmacist1104158260
  29. Wendy Bade, MS, CCC-SLPSpeech-Language Pathologist1891506069
  30. Laurence Badgley, M.D.Family Medicine Physician1477647287
  31. Susan BadraClinical Social Worker1073030649
  32. Kathleen BaerHealth & Wellness Coach1871486613
  33. Arnold Baker, RNPsychiatric/Mental Health Registered Nurse1639725559
  34. Sidney Baker, MFTMarriage & Family Therapist1275748576
  35. Melanie Balaban, M.A.School Psychologist1639987613
  36. Meridith Baldwin, LMFT120713Marriage & Family Therapist1669990933
  37. Ami Ballard, LVNLicensed Vocational Nurse1679806483
  38. Mary Bancud-Bettis, RN, BA, MHCAPsychiatric/Mental Health Registered Nurse1881936458
  39. Molly BannermanCase Manager/Care Coordinator1417197807
  40. Ashley Bar-ZionSocial Worker1083343677
  41. Hector BarajasBehavior Technician1275157471
  42. Alma BarbaClinical Social Worker1558075275
  43. Karen BarberCounselor1124351960
  44. Carol Barboza, RN.Psychiatric/Mental Health Registered Nurse1215200167
  45. Marielle BardosCase Manager/Care Coordinator1902171317
  46. Gregory Barkdull, MDOtolaryngology Physician1962418806
  47. Brian Barnes, LCSWClinical Social Worker1649605171
  48. Emily Barnes, LPTLicensed Psychiatric Technician1114067238
  49. Eric Barnett, LVNLicensed Vocational Nurse1205068715
  50. Deana BaroneHealth Educator1952243834

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

Eureka, California appears in the CMS National Plan and Provider Enumeration System with 2,854 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 Eureka - 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 Eureka 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 Eureka is weighted toward Case Manager/Care Coordinator (492 clinicians, followed by Psychiatric/Mental Health Registered Nurse with 206 and Marriage & Family Therapist with 167). 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 California's population, Eureka reports roughly 7.3 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 California's most common specialties, Behavior Analyst is the most prominent one with no provider currently listing a Eureka practice address, a coverage gap Eureka patients typically fill by traveling to a larger nearby hub.

For Eureka 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 Eureka, CA?

There are 2,854 registered healthcare providers in Eureka, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Eureka?

The most common specialties in Eureka are Case Manager/Care Coordinator, Psychiatric/Mental Health Registered Nurse, Marriage & Family Therapist, Clinical Social Worker, Registered Nurse. Case Manager/Care Coordinator has the most providers with 492.

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.