NPPES file of Aug 9, 2026

Doctors and health care providers in Los Osos, CA

129 individual NPPES records list a practice address in Los Osos, 471st of 812 California cities. The largest group is marriage & family therapist: 25, 19% of the city's records, against 6% across California. Page 2 of 3.

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

The 8 largest groups in Los Osos

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

Los Osos in California

  • Rank in California471st of 812 cities by records
  • Share of the state<0.1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups35.7% of all records

Compared with California as a whole, Los Osos has 4× the state's share of physical therapist records.

Providers in Los Osos, alphabetically

  1. Eric HinrichsenRegistered Nurse1225429020
  2. Katrina Hirsig, NP-CFamily Nurse Practitioner1366797995
  3. Erin HolmesMental Health Counselor1245478353
  4. Deborah Holzman, APRNPsychiatric/Mental Health Nurse Practitioner1902181480
  5. Jorge HuertaCommunity Health Worker1558197921
  6. Ashley HurniSchool Counselor1700672854
  7. Leo Ingle, M.D.Psychiatry Physician1831333590
  8. Jessica Irving, MA, LPCC, AT-RMental Health Counselor1881113264
  9. Laara Israhel, M.EDMarriage & Family Therapist1710252085
  10. Beth-Anne Jacob, LCSWClinical Social Worker1467374496
  11. George Janeway, D.D.S.General Practice Dentistry1073722716
  12. Steven Jio, ODOptometrist1508856386
  13. Lauren Kaida, RDRegistered Dietitian1316551450
  14. Greg Kaiser, ODOptometrist1326019019
  15. Michael Kobliska, D.D.S.General Practice Dentistry1568626091
  16. Robert Kumabe, DDSDentist1073785218
  17. Katharine Lawler, AMFTMarriage & Family Therapist1053235580
  18. Lars Lindgren, D.D.S.Dentist1679603161
  19. Rachel Lonero, PTPhysical Therapist1932438678
  20. Alan Martin, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1386615474
  21. Howard Martin, D.C.Chiropractor1629143631
  22. Lori Martinez-Barraza, LMFTMarriage & Family Therapist1134175003
  23. Daniel McCabe, LCSWClinical Social Worker1275778755
  24. Meghan McKiernan, MDFamily Medicine Physician1104260454
  25. Mariele Moore, PHDClinical Psychologist1144358631
  26. Heather Morgan, RNMassage Therapist1780468215
  27. Jessica Munoz, PPSSchool Psychologist1992699029
  28. Ali Munoz-Tell, PT, DPTPhysical Therapist1720798424
  29. Wade NelsonPharmacist1851745483
  30. Erin O'Farrell, AMFTMarriage & Family Therapist1003676925
  31. Keely O'Keefe, MS, RDN, LDRegistered Dietitian1275356818
  32. Mary Oneill, L.MMidwife1851760821
  33. Rebecca Pascual, RDNRegistered Dietitian1821608290
  34. John Peake, M.D.Psychiatry Physician1730324674
  35. Ariana Perez-Mansfield, OTR/LPediatric Occupational Therapist1982541751
  36. Robin Peterson, D.C.Chiropractor1659455228
  37. Michelle Ramirez, PTPhysical Therapist1467445320
  38. Michael Regier, PH.D.Psychologist1487806410
  39. Erin Roberts, OTRPediatric Occupational Therapist1598692733
  40. Maison RodriguezSchool Counselor1699562975
  41. Karen Rogers, LMFTMarriage & Family Therapist1285852616
  42. Casey Rosenlieb, SA COUNSELORAddiction (Substance Use Disorder) Counselor1689479099
  43. Joe RosilezPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1881087849
  44. Danielle RoskeMarriage & Family Therapist1144916024
  45. Kathryn Rossi, PSYCHOLOGISTPsychologist1225996184
  46. Devon RuanePhysical Therapist1013386655
  47. Matthew Ruane, PTPhysical Therapist1922477751
  48. Jennifer Rubio, PHYSICAL THERAPISTPhysical Therapist1952659385
  49. Sophia RuefPhysician Assistant1033982814
  50. Michael Sanden, DPTPhysical Therapist1912142944

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

Los Osos, California appears in the CMS National Plan and Provider Enumeration System with 129 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 Los Osos - 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 Los Osos 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 Los Osos is weighted toward Marriage & Family Therapist (25 clinicians, followed by Physical Therapist with 12 and Pharmacist with 9). 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, Los Osos reports roughly 0.3 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Los Osos practice address, a coverage gap Los Osos patients typically fill by traveling to a larger nearby hub.

For Los Osos 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 Los Osos, CA?

There are 129 registered healthcare providers in Los Osos, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Los Osos?

The most common specialties in Los Osos are Marriage & Family Therapist, Physical Therapist, Pharmacist, Optometrist, Registered Dietitian. Marriage & Family Therapist has the most providers with 25.

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.