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 14 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. Megan ArcherRegistered Nurse1558132951
  2. Marie ArchuletaAddiction (Substance Use Disorder) Counselor1063623742
  3. Robert ArchuletaAddiction (Substance Use Disorder) Counselor1093905150
  4. Gilbert Nolly ArcillaBehavior Technician1164046082
  5. Anne-Francelle Ardina-Buckley, M.D.Pediatrics Physician1184007718
  6. Girom Aregai, RN,Infusion Therapy Registered Nurse1366162513
  7. Angelyne Arellano, M.S.Marriage & Family Therapist1548570096
  8. Cassandra ArellanoBehavior Technician1952935793
  9. Cristina ArellanoCommunity Health Worker1659115863
  10. Javiera ArellanoSpeech-Language Pathologist1457206195
  11. Rachel Arellano, MSWSocial Worker1942508205
  12. Veronica Arellano CastroDay Training/Habilitation Specialist1184119133
  13. Samantha Arenzana, LVNLicensed Vocational Nurse1841167988
  14. Katia ArevaloRehabilitation Practitioner1285380444
  15. Marvyn ArevaloCommunity Health Worker1154635894
  16. Jose Arevalo RuizDay Training/Habilitation Specialist1972315638
  17. Paul Areyan, RNCritical Care Medicine Registered Nurse1821915646
  18. Azadeh AreziBehavior Technician1811679111
  19. Matthew-Dean Argame, MDStudent in an Organized Health Care Education/Training Program1306789441
  20. Carina ArguelloStudent in an Organized Health Care Education/Training Program1245784032
  21. Joelle ArguelloMarriage & Family Therapist1225623390
  22. Prema Arhin, L.AC.Acupuncturist1609152891
  23. Kade AriaCounselor1518350008
  24. Leslie Aria, PHDHealth Psychologist1194879528
  25. Gina AriasPsychologist1326661430
  26. Jasmeen AriasBehavior Analyst1629534946
  27. Erik Arias MendozaClinical Social Worker1376232769
  28. Chade AriboStudent in an Organized Health Care Education/Training Program1467030734
  29. Haruna Aridomi, MD, MSStudent in an Organized Health Care Education/Training Program1750141628
  30. Jane Ariel, MFT, PH.DMental Health Counselor1346307840
  31. Javier ArmasCounselor1164615993
  32. Shalia ArmasSocial Worker1316778988
  33. Thomas Armbruster, M.D.Anesthesiology Physician1720204209
  34. Alejandro ArmendarizSocial Worker1770363285
  35. Alma ArmentaBehavior Technician1003416637
  36. Claudia ArmentaStudent in an Organized Health Care Education/Training Program1255532206
  37. Anna ArmfieldChild & Adolescent Psychiatric/Mental Health Registered Nurse1770202780
  38. Lauren Armour, RNRegistered Nurse1124867270
  39. Akia ArmstrongAddiction (Substance Use Disorder) Counselor1487432555
  40. Gregory ArmstrongCase Manager/Care Coordinator1780392548
  41. Jessica Armstrong, PH.D.Psychologist1396122966
  42. Nicole ArmstrongStudent in an Organized Health Care Education/Training Program1043964356
  43. Rebecca Armstrong, PAPhysician Assistant1023765377
  44. Laila ArnaootMarriage & Family Therapist1093035743
  45. Janet Arnesty, MDFamily Medicine Physician1669464152
  46. Madeline ArnettCounselor1366006512
  47. Jennifer Arnold, MDInternal Medicine Physician1942419502
  48. Michele Arnold, MDAnesthesiology Physician1851525083
  49. Sheree ArnoldCommunity Health Worker1235517475
  50. Maurice Arnold Jd, JDMental Health Counselor1932778065

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.