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 369 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. April Zaat, MDStudent in an Organized Health Care Education/Training Program1275810277
  2. Cynthia ZabalaAddiction (Substance Use Disorder) Counselor1194173401
  3. Katarzyna Zacha, MACounselor1518166388
  4. Dustin Zacharias, CMTMassage Therapist1114872215
  5. Lasnieli ZadurskiDoula1104719962
  6. Rachel ZaffiroStudent in an Organized Health Care Education/Training Program1427942739
  7. Sabreen Zafir, NOCase Manager/Care Coordinator1023299294
  8. Ayesha Zahiruddin, MDGastroenterology Physician1942598396
  9. Robin ZahnerMarriage & Family Therapist1942947940
  10. Jannat ZahoorStudent in an Organized Health Care Education/Training Program1104328236
  11. Brita Zaia, M.D.Emergency Medicine Physician1285871798
  12. Yazsmyn ZaidCommunity Health Worker1538002563
  13. Nadir ZaidiStudent in an Organized Health Care Education/Training Program1245790849
  14. Sokena Zaidi, MDStudent in an Organized Health Care Education/Training Program1912632019
  15. Aamir Zakaria, M.D.Vascular Surgery Physician1154317683
  16. Yeganeh Zakerani, PHARMDPharmacist1861116642
  17. Wadie Zakhary, MSWStudent in an Organized Health Care Education/Training Program1780416529
  18. Ruby ZalduondoCase Manager/Care Coordinator1225685431
  19. Linda Zallen, MS, MFTMarriage & Family Therapist1598966558
  20. Ambreen Zaman, P.A.Surgical Physician Assistant1770014367
  21. Adriana Zambrano, M.D.Pediatrics Physician1366605131
  22. Karla Zambrano-ArmijosMental Health Counselor1467788893
  23. Darling ZamoraMental Health Counselor1124794755
  24. Denisse ZamoraBehavior Technician1245708262
  25. Esin ZamoraMarriage & Family Therapist1861709602
  26. Isela ZamoraMental Health Counselor1689064206
  27. Jaryle ZamoraStudent in an Organized Health Care Education/Training Program1588257646
  28. Juliana ZamoraBehavior Technician1689165359
  29. Theresa ZamoraMental Health Counselor1306386131
  30. Giovanna ZampaClinical Social Worker1013808120
  31. Leva ZandCommunity Health Worker1699330472
  32. Abby Zangwill, PHARMDPharmacist1902944689
  33. Stuart Zangwill, MDPediatrics Physician1831277623
  34. Mercedes ZapataMental Health Counselor1942721907
  35. Adriana ZapienDay Training/Habilitation Specialist1073163606
  36. Cinthia ZapienRehabilitation Practitioner1427529114
  37. Karla ZapienSocial Worker1740976174
  38. Nicolle Zapien, MA, ED.M, MFTMarriage & Family Therapist1285957084
  39. William Zappas, A.S.W.Clinical Social Worker1760717664
  40. Katrina Zara, BSStudent in an Organized Health Care Education/Training Program1073345583
  41. Efren ZaragozaBehavior Technician1720831506
  42. Raquel ZaragozaCase Manager/Care Coordinator1215050372
  43. Viviana ZaragozaBehavior Technician1932954443
  44. Eva ZarateSocial Worker1699286070
  45. Edward Neil ZarcoDay Training/Habilitation Specialist1558289173
  46. Erika Zarco, M.A., LMFTMarriage & Family Therapist1497937098
  47. Payam Zarehbin, O.DOptometrist1164428942
  48. Eve Zaritsky, MDObstetrics & Gynecology Physician1508968231
  49. Philip Zarri, PTPhysical Therapist1043386568
  50. Linda Zaruba, PHDPsychologist1750586533

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.