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 132 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. Lorina HarjonoBehavior Technician1275021750
  2. Alden Harken, M.D.Surgery Physician1225148398
  3. Erica HarlandCounselor1558975912
  4. Kira HarlandMarriage & Family Therapist1629780648
  5. Andrew Harlem, PHDPsychologist1669707048
  6. Lucas Harless, M.D.Student in an Organized Health Care Education/Training Program1700128519
  7. Paul Harmatz, MDPediatric Gastroenterology Physician1255435301
  8. Jordan HarmerStudent in an Organized Health Care Education/Training Program1215622808
  9. Alyssa HarmonHealth Information Technician1730960196
  10. Amber Harmon, MD, MPHHospitalist Physician1225500473
  11. Rachel HarmonBehavior Analyst1730677683
  12. Calisha Harmon-Cobb, BSN, RN, MSN, CPNPPediatric Nurse Practitioner1346361201
  13. Ilana Harms, DAIM, LACAcupuncturist1598403941
  14. Bekah Harnish, OTD, OTR/LOccupational Therapist1528958782
  15. Gary Harnois, DDSDentist1558557835
  16. Elisa HaroMental Health Counselor1528330925
  17. Mohammad HaroonRehabilitation Practitioner1417819434
  18. Melody HarpAdult Companion1326730482
  19. Cherie HarperMassage Therapist1750161477
  20. Cherisse HarperCounselor1295131878
  21. Josh HarperPeer Specialist1518791854
  22. Kenyetta HarperMassage Therapist1770282840
  23. Magdalena Harper, ED.SSchool Psychologist1356173207
  24. Marisol Harper, LCSWClinical Social Worker1609289412
  25. Marjorie Harper, LCSWClinical Social Worker1851463855
  26. Pierre Harper, B.A.Counselor1902943897
  27. Stevelan HarperMental Health Counselor1891024006
  28. Tamu HarperMental Health Counselor1194377366
  29. Andrea HarrellMarriage & Family Therapist1750543872
  30. Erin Harrell, PSY.D.Mental Health Counselor1568591303
  31. Jill Harrell, MDSpecialist1073656062
  32. Julia Harreschou, MS, SLP-CFSpeech-Language Pathologist1093368896
  33. Vincent HarriganSpecialist1972944841
  34. Gabrielle HarringtonBehavior Technician1922612647
  35. Jeremiah HarringtonBehavior Technician1497615736
  36. Lynn Harrington, PT, CAEPhysical Therapist1982652376
  37. Nancy HarringtonMarriage & Family Therapist1457497398
  38. Ajah HarrisCommunity Health Worker1073334470
  39. Alissa HarrisSocial Worker1255182531
  40. Bradley HarrisCase Manager/Care Coordinator1043921505
  41. Brandi HarrisDay Training/Habilitation Specialist1295613008
  42. Carlisa HarrisCounselor1598189029
  43. Daejah HarrisBehavior Technician1841796836
  44. Edwin Harris, LMFTMarriage & Family Therapist1891030474
  45. Emily Harris, PH.D.Psychologist1215247671
  46. Emily HarrisMental Health Counselor1366877201
  47. Erica HarrisDay Training/Habilitation Specialist1346979937
  48. Felicia HarrisBehavior Technician1639895857
  49. Gregory HarrisPastoral Counselor1104746296
  50. Heather Harris, MDHospice and Palliative Medicine (Internal Medicine) Physician1386660462

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.