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 243 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. Kushagra Nijhara, M.D.Psychiatry Physician1831689348
  2. Sonny Nijjar, M.D.Hospitalist Physician1790196756
  3. Mahnoosh Nik-Ahd, MDPediatric Emergency Medicine (Emergency Medicine) Physician1174919609
  4. Krista Niles, LCSWClinical Social Worker1720218092
  5. Lorraine Niles, OTR/LMental Health Occupational Therapist1508139684
  6. Argavan Nilforoush, RDRegistered Dietitian1649523267
  7. Janet Nilsen, RN, NPPsychiatric/Mental Health Nurse Practitioner1427168335
  8. Craig Nimick, D.P.M.Student in an Organized Health Care Education/Training Program1962769166
  9. Claire NimsBehavior Analyst1609359777
  10. Daniel Ninh, PHARMD, MS, RPHPharmacist1164020020
  11. Juan-David Nino-Lopez, NPFamily Nurse Practitioner1386307569
  12. Siu Ying Nip, MBCHBPediatric Endocrinology Physician1346611514
  13. Donna NishijimaPharmacist1841724036
  14. Kelly NishikawaStudent in an Organized Health Care Education/Training Program1679004717
  15. Diane Nishikawa-Solomon, CRNACertified Registered Nurse Anesthetist1861558496
  16. Justin NishimotoBehavior Analyst1194214379
  17. Kris Nishimura, PHARM.D.Pharmacist1205119096
  18. Michael NishiokaPharmacist1548829062
  19. Eduardo NisperosCounselor1982368734
  20. Kellie Nissen, PSYDClinical Psychologist1669023750
  21. Christy NitkowskiClinical Social Worker1427524503
  22. Lagituaiva NiuatoaCommunity Health Worker1962954834
  23. Loa NiumeitoluCommunity Health Worker1447566492
  24. Sharon NivStudent in an Organized Health Care Education/Training Program1942758719
  25. Amanda Nixon, RNRegistered Nurse1003582917
  26. Carmen Njelita, MFTIMarriage & Family Therapist1922249614
  27. Zanabou NjieCounselor1780350751
  28. Gregory Nkwocha, DPTPhysical Therapist1477323913
  29. Deborah NkwuoClinical Social Worker1093902348
  30. Roxana NobariMarriage & Family Therapist1275999682
  31. Andrea NobleStudent in an Organized Health Care Education/Training Program1912744665
  32. Emma NobleHearing Instrument Specialist1578029500
  33. Jeanne Noble, MDEmergency Medicine Physician1649452822
  34. Rainia NobleMarriage & Family Therapist1487075594
  35. Skyler NobleCase Manager/Care Coordinator1679117873
  36. Jocelyn NodalDay Training/Habilitation Specialist1366321267
  37. Yusef-Khan NodoraBehavior Technician1225796949
  38. Theresa Noe, DDSDentist1326031402
  39. Constance Noel, DOInternal Medicine Physician1538385786
  40. Dominique NoelCounselor1104522473
  41. Marnie Noel, PHARM.DPsychiatric Pharmacist1336494996
  42. Rachel Noel, R.N.Registered Nurse1891003463
  43. Sumire Noguchi, DOStudent in an Organized Health Care Education/Training Program1780319194
  44. Sophia Nogue, RN, NPFamily Nurse Practitioner1629550454
  45. Sofia NogueronCommunity Health Worker1144059023
  46. Alana Nohrden, RDRegistered Dietitian1730710526
  47. Emer NolanDay Training/Habilitation Specialist1033909437
  48. Jennifer Nolan, D.C.Chiropractor1457805434
  49. Laura Nolan, LCSWClinical Social Worker1497101539
  50. Mary De Crus Nolan, L.C.S.W.Clinical Social Worker1184823809

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.