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 247 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. Doris OdoLicensed Vocational Nurse1336800796
  2. Sarah OehlerMental Health Counselor1932435567
  3. Rudolph Oehm, MDInternal Medicine Physician1699971689
  4. Caitlyn Ofalla-HernandoMarriage & Family Therapist1881241073
  5. Valerie Offeman, MOT, OTR/LOccupational Therapist1871989954
  6. Jacob Ofman, PH.D.Clinical Psychologist1760786560
  7. Maria Ofreneo, M.D.Pediatric Pulmonology Physician1124133566
  8. Dawn Ogawa, M.D.Obstetrics & Gynecology Physician1902015894
  9. Michael Ogbonna OgbonnaStudent in an Organized Health Care Education/Training Program1699419747
  10. Christina OgbuMental Health Counselor1922267244
  11. Jennifer OgdenDay Training/Habilitation Specialist1609666809
  12. Joseph OgoDay Training/Habilitation Specialist1306495429
  13. Leah OgunadePeer Specialist1912750829
  14. Roshelle Ogundele, LCSWClinical Social Worker1811395791
  15. Abosede OgunkanmiAmbulatory Care Registered Nurse1528523396
  16. Hannah Oh, PHARMDPharmacist1386953693
  17. Youngja Oh, MACEMarriage & Family Therapist1851582373
  18. Michael Ohabughiro, MDInternal Medicine Physician1003304866
  19. Brandy OharaCase Manager/Care Coordinator1417553165
  20. Sharon Ohene-Nyako, RNCase Management Registered Nurse1568194025
  21. Kyle Ohlin, CMTMassage Therapist1245163062
  22. Ajay Ohri, M.D.Internal Medicine Physician1639523475
  23. Rinsoluwa OisaghieHealth Information Technician1194456871
  24. Wendolyn OjedaCase Manager/Care Coordinator1174372791
  25. Anthonia Ojo, MDStudent in an Organized Health Care Education/Training Program1518462423
  26. Masaru Okajima, MS, MOT, OTR/LOccupational Therapist1821481029
  27. Alice Okamoto, PHARMDPharmacist1861545402
  28. Dorothy Okamoto, O.D.Optometrist1629047527
  29. Marian Okamura, LCSWClinical Social Worker1053679340
  30. Ogechi Okeke, MS CCC-SLPSpeech-Language Pathologist1730885906
  31. Gabriel Okere, RNAdult Psychiatric/Mental Health Registered Nurse1710696125
  32. Cynthia OkialdaSpecialist1558218784
  33. Kevin OkifoStudent in an Organized Health Care Education/Training Program1518807205
  34. Patrick OkohCounselor1144810847
  35. Connie OkonStudent in an Organized Health Care Education/Training Program1649074238
  36. Juliana OkonCounselor1699499574
  37. Tobechi Okoronkwo, M.D.Anesthesiology Physician1013334143
  38. Uchenna Okoronkwo, MDInternal Medicine Physician1922025972
  39. Ukachi Okoronkwo, CMTMassage Therapist1285416545
  40. Ikechukwu OkpalekeDriver1013635911
  41. Tatsuhiro OkuStudent in an Organized Health Care Education/Training Program1932394533
  42. Amenaghawon OkwuegbeLicensed Vocational Nurse1063149441
  43. Oludayo Oladipo, FNPRegistered Nurse1184265407
  44. Ikeoluwa OladojaStudent in an Organized Health Care Education/Training Program1093532210
  45. Maleek OladunjoyeHealth Information Technician1477282218
  46. Christina Olague, AMFTMarriage & Family Therapist1073114724
  47. Jodi Oldfather, CRNACertified Registered Nurse Anesthetist1942572409
  48. Destiny OlginBehavior Technician1104492750
  49. Jennifer OlguinCommunity Health Worker1710666003
  50. Selena OlguinBehavior Technician1932730389

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.