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 70 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. Maria CortezCommunity Health Worker1144672957
  2. Michelle CortezPediatric Nurse Practitioner1427417237
  3. Sugey CortezSocial Worker1730747783
  4. Yajayra CortezStudent in an Organized Health Care Education/Training Program1114602216
  5. Carolina Cortez AlonzoMental Health Counselor1982366837
  6. Jan Corwin, DCSports Physician Chiropractor1366441974
  7. Naomi CorwinCounselor1588031017
  8. Jessica Corzo, LCSWClinical Social Worker1609362045
  9. Kennedy Cosgrove, MDPsychiatry Physician1659486561
  10. Margaret Cosgrove, DPTPhysical Medicine & Rehabilitation Physician1043723695
  11. Jennifer Cossio-MontoyaBehavior Analyst1376047092
  12. Adriana CostaPsychologist1851905814
  13. Lena Costales-DowneyMental Health Counselor1558087346
  14. Julia CostantiniStudent in an Organized Health Care Education/Training Program1982306247
  15. Jessica CotaBehavior Technician1710549381
  16. Jamaal CotrightClinical Social Worker1235459629
  17. Kary Cotter, LCSWClinical Social Worker1689610677
  18. Katharine Cotterell, CD, CPPDDoula1083078570
  19. Jacqueline CottonMental Health Counselor1144671439
  20. Jasmine CottonDay Training/Habilitation Specialist1073476206
  21. Kierra CottonBehavior Technician1013611805
  22. Shawn CouchSpecialist1548637705
  23. Aneta Coufalova, PSY.DPsychologist1639942188
  24. Marina CoulouresDay Training/Habilitation Specialist1932027554
  25. Karl Coulter, DPMPodiatrist1831131309
  26. Sarah Coulthurst, M.S.Audiologist1639355332
  27. Sakai Council FletcherCommunity Health Worker1588233605
  28. Cara Counter, MFTIMarriage & Family Therapist1528111911
  29. Rebecca Courry, LCSWClinical Social Worker1891004537
  30. Breton CourtneyCounselor1366653362
  31. Stephanie CousinsObstetrics & Gynecology Physician1659732550
  32. Nicole CoutuBehavior Technician1285595975
  33. Marlene CouvsonCase Manager/Care Coordinator1417771163
  34. Cheyenne CovarrubiasDay Training/Habilitation Specialist1285377499
  35. Daniel CovelAdministrator Registered Nurse1265203616
  36. Ally CovinoStudent in an Organized Health Care Education/Training Program1699696435
  37. Brandon Cowan, MDStudent in an Organized Health Care Education/Training Program1093344319
  38. Kathleen Cowan, LMFTMarriage & Family Therapist1598432924
  39. Kirsten Cowan, L.ACAcupuncturist1114150471
  40. Reyna CowanClinical Social Worker1801664131
  41. Bailee CowartCommunity Health Worker1265152409
  42. Jennifer Cowing, LACAcupuncturist1073995957
  43. Catherine Cox, MDStudent in an Organized Health Care Education/Training Program1558522532
  44. Christopher Cox, M.D.Orthopaedic Hand Surgery Physician1013104215
  45. Cynthia Cox, D.D.S.General Practice Dentistry1083832513
  46. Emily Cox, MDStudent in an Organized Health Care Education/Training Program1437854924
  47. Josiah Cox, MDChild & Adolescent Psychiatry Physician1891292082
  48. Lashawn CoxCounselor1346843190
  49. Rachel Cox, RDPediatric Nutrition Registered Dietitian1649543083
  50. Samuel Cox, DCChiropractor1154131050

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.