NPPES file of Aug 9, 2026

Doctors and health care providers in Oakland, CA

18,558 individual NPPES records list a practice address in Oakland, 7th of 812 California cities. The largest group is marriage & family therapist: 1,576, 8% of the city's records, against 6% across California. Page 251 of 372.

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

The 8 largest groups in Oakland

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

Oakland in California

  • Rank in California7th of 812 cities by records
  • Share of the state1.9% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups22.2% of all records
  • Marriage & Family Therapist rank5th of the 10 California cities with the most

Compared with California as a whole, Oakland has 2.9× the state's share of counselor records and 0.29× its share of behavior technician records.

Providers in Oakland, alphabetically

  1. Myriam OspinaCounselor1790940435
  2. Stefan OsteCounselor1336385681
  3. Helge OsterholdMarriage & Family Therapist1942054861
  4. Amanda OsterhoutCommunity Health Worker1174260798
  5. Sharon Osterweil, MPHRehabilitation Practitioner1861382129
  6. Richard Ostreicher, MDDermatology Physician1568540359
  7. Hideko OtaMarriage & Family Therapist1477062529
  8. Julie Otani, PTPhysical Therapist1295941748
  9. Bianca OtarolaBehavior Technician1386117349
  10. Elaina Oteyza, MDPediatrics Physician1740420074
  11. Chandler OtisBehavior Technician1609365600
  12. Jim Otis, DCNeurology Chiropractor1235351453
  13. Tanisha Otis-Taul, B.A.Counselor1396104923
  14. Romy Ott, MDDiagnostic Radiology Physician1205078557
  15. Anna Otten, PTPhysical Therapist1982856233
  16. Anne OttenwellerMarriage & Family Therapist1679133185
  17. Ryan Otto, PAPhysician Assistant1174845226
  18. Anita OuMental Health Counselor1871958215
  19. Joseph OuFamily Medicine Physician1477084382
  20. Juchun Ou, ACUPUNCTURISTAcupuncturist1043371289
  21. Lichun Ou, O.M.D.,LAC,PH.D.,QMEAcupuncturist1962427393
  22. Melody OuDay Training/Habilitation Specialist1962338624
  23. Yi Ou, D.C.Chiropractor1558306258
  24. Cosme OuaboCounselor1598409773
  25. Gaoussou OuattaraMental Health Counselor1962692525
  26. Julia OughMental Health Counselor1326823907
  27. Sara Ouimette, LMFTCounselor1396256863
  28. Carrie Ousley, D.C.Chiropractor1851486971
  29. Malena OuthayEmergency Medicine Physician1710418942
  30. Stacy Outten, MFTMental Health Counselor1629330352
  31. Naomi Overstreet, RNRegistered Nurse1497530505
  32. Brenda OvertonCommunity Health Worker1356865893
  33. Angelica Oviedo, MDAnatomic Pathology Physician1518045392
  34. Daniela Owen, PH.D.Clinical Psychologist1932545639
  35. Mary Owen, MFTMarriage & Family Therapist1396951224
  36. Alexis OwensCounselor1497100085
  37. Amanda Owens, ASWClinical Social Worker1770265563
  38. Dawn OwensCounselor1689919920
  39. Maria OwensAddiction (Substance Use Disorder) Counselor1437390937
  40. Olivia Owens, MSCounselor1699529230
  41. Raheem OwensMental Health Counselor1588116271
  42. Shaniece OwensCounselor1477196319
  43. Taiena OwensBehavior Technician1295693463
  44. Taylor OwyangPhysical Therapist1386377588
  45. Oyebola Oyewole, MD, MSStudent in an Organized Health Care Education/Training Program1730750563
  46. Judy Oyoung, MDAnesthesiology Physician1427136209
  47. Elizabeth OzeryAnesthesiology Physician1376905414
  48. Mirisen OzpekMarriage & Family Therapist1083553598
  49. Nina Ozturk, LMFTMarriage & Family Therapist1730753724
  50. Maja PaalssonCounselor1689935488

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

Oakland, California appears in the CMS National Plan and Provider Enumeration System with 18,558 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 Oakland - 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 Oakland 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 Oakland is weighted toward Marriage & Family Therapist (1,576 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,419 and Clinical Social Worker with 1,130). 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, Oakland reports roughly 47.6 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, General Practice Dentistry is the most prominent one with no provider currently listing a Oakland practice address, a coverage gap Oakland patients typically fill by traveling to a larger nearby hub.

For Oakland 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 Oakland, CA?

There are 18,558 registered healthcare providers in Oakland, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Oakland?

The most common specialties in Oakland are Marriage & Family Therapist, Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Mental Health Counselor, Behavior Technician. Marriage & Family Therapist has the most providers with 1,576.

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.