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 130 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. Ginger HamiltonMental Health Counselor1881800829
  2. Jessica Hamilton, M.D.Family Medicine Physician1407116007
  3. Julia HamiltonClinical Social Worker1336085505
  4. Julian HamiltonBehavior Technician1457043457
  5. Rochelle HamiltonAddiction (Substance Use Disorder) Counselor1629258207
  6. Ronete HamiltonPhysician Assistant1871867259
  7. Rose HamiltonCounselor1437709557
  8. Sarah Hamilton, APCCCounselor1821663980
  9. Tiffany HamiltonBehavior Analyst1508358078
  10. Tonette HamiltonAdult Companion1861216715
  11. Zoey HamiltonBehavior Technician1487129664
  12. Arkesha Hamilton HobsonRehabilitation Practitioner1588319586
  13. Caitlin Hamlin, PSYDPsychologist1851801450
  14. Danice HamlinCommunity Health Registered Nurse1013593250
  15. Candace Hammer, MAMarriage & Family Therapist1134092604
  16. Minia HammerDay Training/Habilitation Specialist1962249417
  17. Steven Hammerschlag, M.D.Diagnostic Radiology Physician1518950658
  18. Ibtihaj HammondCase Manager/Care Coordinator1578389433
  19. Katrina HammondStudent in an Organized Health Care Education/Training Program1386015584
  20. Jacqueline HammoudeBehavior Technician1649874181
  21. Aretha Hampton, LCSWClinical Social Worker1003327008
  22. Jonathan HamptonCommunity Health Worker1851236566
  23. Juanita HamptonNurse's Aide1407772007
  24. Mojukhan HamptonBehavior Technician1861260341
  25. Tiffany HamptonCommunity Health Worker1487414892
  26. Winntrest HamptonSocial Worker1760932297
  27. Anne HanMental Health Counselor1730331810
  28. Elizabeth HanBehavior Technician1922583517
  29. Hui HanOccupational Medicine Physician1386809093
  30. Jeong Han, MDStudent in an Organized Health Care Education/Training Program1578766051
  31. Kyoung Won Han, DDSDentist1063063774
  32. Liz Han, MDGynecologic Oncology Physician1699721498
  33. Nancy Han, MSWPsychologist1376790600
  34. Susan Han, ODOptometrist1902949696
  35. Timothy Han, DDSGeneral Practice Dentistry1184831554
  36. Timothy Han, RNRegistered Nurse1407746274
  37. William HanStudent in an Organized Health Care Education/Training Program1427990670
  38. Sue Han-Kwak, ASWMental Health Counselor1770927022
  39. Caitlin Hanavan, RN, FNP-CNurse Practitioner1366005068
  40. Kristen Hancock, MDStudent in an Organized Health Care Education/Training Program1780261040
  41. Rachelle Hancock, MDStudent in an Organized Health Care Education/Training Program1528644614
  42. Scott HandlemanMarriage & Family Therapist1538042262
  43. Ademola HanduNurse's Aide1669398277
  44. Chou Hang, PHARMDPharmacist1649043985
  45. Rhummanee HangCase Manager/Care Coordinator1366923369
  46. Inka HanhivaaraForensic Psychologist1356871446
  47. Dina Hankin, PHDClinical Psychologist1598936346
  48. Laura Hanks, LACAcupuncturist1245741305
  49. Connor Hannon, MDInternal Medicine Physician1710506563
  50. Andrea HansMarriage & Family Therapist1720453061

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.