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 30 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. Iver Lien, FNPPrimary Care Nurse Practitioner1144728924
  2. Raegan Lima, DTCM, L.AC.Acupuncturist1184247298
  3. Ramona Lima, R.PH.,CMEPharmacist1902052277
  4. Christopher Lin, MD, FACSOphthalmology Physician1811982291
  5. Kelley LincolnCase Manager/Care Coordinator1952438590
  6. Alynda LindleyBehavior Analyst1144878927
  7. Rebecca LinkousCase Manager/Care Coordinator1073155404
  8. Brianna LipskyCase Manager/Care Coordinator1023736915
  9. Vicente LizamaCase Manager/Care Coordinator1295254597
  10. Pang LoSocial Worker1164399937
  11. Ange Lobue, M.D.,M.P.H.,B.S.PH.Psychiatry Physician1619188315
  12. Bailey Locatelli, DOULA CERTIFICATIONDoula1811696974
  13. Robert Lock, MDCardiovascular Disease Physician1821079393
  14. Angela LockwoodCommunity Health Worker1144529132
  15. Kimberly Lockwood, CLDDoula1194588947
  16. Jessica Loesch, RNPsychiatric/Mental Health Registered Nurse1427790948
  17. Deborah Loest Deppe, MS,CCC-SLPSpeech-Language Pathologist1770507964
  18. Peter LomelyMental Health Counselor1356516413
  19. Thomas Loncar, M.D.Surgery Physician1710915319
  20. Beverly Long, RNPsychiatric/Mental Health Registered Nurse1649421249
  21. Julia LongMental Health Counselor1316702665
  22. Marianne LongCommunity Health Worker1730620873
  23. Melissa Long, PA-CSurgical Physician Assistant1033598230
  24. Sierra LongmanStudent in an Organized Health Care Education/Training Program1255068045
  25. Eurides Lopes, M.D.Internal Medicine Physician1447511803
  26. Aaron LopezCase Manager/Care Coordinator1841595261
  27. Basilia Lopez, RNRegistered Nurse1700387073
  28. Denae Lopez, PHARMDPharmacist1760822316
  29. Deonnae Lopez, MDEmergency Medicine Physician1295178333
  30. Luis LopezPsychiatric/Mental Health Registered Nurse1548086358
  31. Maria Elena Lopez, ASWCounselor1043650674
  32. Lisa LorenzenHealth & Wellness Coach1538034509
  33. Jessi LoringMarriage & Family Therapist1083508659
  34. Kelly LoveBehavior Technician1093670564
  35. Aiden LovettHealth & Wellness Coach1194656447
  36. Phillip Loyd, SUDCC IIAddiction (Substance Use Disorder) Counselor1316606700
  37. Michael Lozano, CPProsthetist1477746329
  38. Teresa Lucchesi-Cook, N.D. , L.AC.Acupuncturist1700951043
  39. Christianne Lucero, PA-CPhysician Assistant1356779656
  40. Ashly LucianiSchool Social Worker1851860340
  41. Sean LuenebrinkClinical Social Worker1326184078
  42. Brett Luger, RNRegistered Nurse1497416523
  43. Join Luh, M.D.Radiation Oncology Physician1093809634
  44. Isabelle Lunsford, RNRegistered Nurse1407168503
  45. Dirk Luoma, DCChiropractor1942365093
  46. Shin Luong, LCSWClinical Social Worker1548829674
  47. Jessica Lusk, R.S.Case Manager/Care Coordinator1225579550
  48. Susan Lussier, CASE MANAGERCase Manager/Care Coordinator1134888217
  49. Tuan Luu, M.D.Emergency Medicine Physician1326001660
  50. Tiffany Lynch MaePeer Specialist1801344411

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.