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 280 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. Armando RiveraAdult Companion1750265427
  2. Carmen Rivera, NP, CNMAdvanced Practice Midwife1831383850
  3. Cindi Rivera, MFTMarriage & Family Therapist1013084185
  4. Cynthia RiveraStudent in an Organized Health Care Education/Training Program1710628748
  5. Dean Rivera, INTERNMental Health Counselor1326598038
  6. Javier Rivera, M.DDiagnostic Radiology Physician1093030470
  7. Jennifer RiveraRehabilitation Practitioner1174404495
  8. Luis Rivera, DDSDentist1770801458
  9. Luis RiveraCounselor1053919092
  10. Ma Angela Rica Mae Rivera, BCBABehavior Analyst1073098299
  11. Ma Sheila Rivera, RPTPhysical Therapist1053792739
  12. Marcus RiveraBehavior Technician1144793589
  13. Olivia RiveraSchool Social Worker1144652355
  14. Reuben Rivera, OD MS FAAOOptometrist1952346967
  15. Ryan Rivera, D.O.Internal Medicine Physician1720273055
  16. Ysabella Raceli RiveraStudent in an Organized Health Care Education/Training Program1780521146
  17. Zuleyma RiveraSchool Counselor1487581666
  18. Ma Concepsion Rivera Gonzalez, MSWAddiction (Substance Use Disorder) Counselor1518525674
  19. Yanina Rivera Lopez, MSWClinical Social Worker1205488350
  20. Asley Rivera RenderosBehavior Technician1043019839
  21. Laura Rivera RodriguezStudent in an Organized Health Care Education/Training Program1841679750
  22. Iligia Rivera-KeelBehavior Technician1386324176
  23. Alexander RiveroStudent in an Organized Health Care Education/Training Program1356683635
  24. Nadia RizkMental Health Counselor1629611819
  25. Christine RizkalaStudent in an Organized Health Care Education/Training Program1750030656
  26. Crystal RizoHealth Information Technician1518689827
  27. Linda RizoDay Training/Habilitation Specialist1598011322
  28. Michelle RizoBehavior Analyst1023557287
  29. Sadaf RizviMental Health Counselor1346007333
  30. Bruce Rizzo, DCChiropractor1285755983
  31. Jamie Rizzo, LMFTMarriage & Family Therapist1609245463
  32. Michael Rizzo, MDDiagnostic Radiology Physician1932287638
  33. Krystal RoaDay Training/Habilitation Specialist1720814031
  34. Ivette Roa-GarciaBehavior Technician1851251219
  35. Jesse RoachCase Manager/Care Coordinator1336680081
  36. Austin Roadarmel, MDStudent in an Organized Health Care Education/Training Program1780261917
  37. Marian Roan, R.D.Registered Dietitian1619128725
  38. John Roark, MDGastroenterology Physician1609834266
  39. Jenna Roat, MFTINTERNStudent in an Organized Health Care Education/Training Program1891162855
  40. Carolina RobbAddiction (Substance Use Disorder) Counselor1649302605
  41. Joanne RobbMarriage & Family Therapist1578933719
  42. Mark Robb, MDInternal Medicine Physician1053499665
  43. Allison RobbinsPediatrics Physician1417112921
  44. James Robbins, M.D.Psychiatry Physician1114062924
  45. Kristen Robbins, L.ACAcupuncturist1992268445
  46. Sonya RobbinsClinical Social Worker1255837266
  47. Tiffany Robbins, MFTMarriage & Family Therapist1841312071
  48. Darnell RobersonAddiction (Substance Use Disorder) Counselor1154505055
  49. Lanita RobersonCounselor1336729854
  50. Michelle RobersonRehabilitation Practitioner1619463098

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.