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 242 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. Thanh-Van NguyenClinical Social Worker1548025927
  2. Thao Nguyen, M.D.Pediatrics Physician1629397799
  3. Thao Kryssie NguyenBehavior Technician1376150748
  4. Thi Nguyen, MDPediatrics Physician1285694190
  5. Thien Nguyen, PHARMD.Pharmacist1528244654
  6. Thiennga Nguyen, M.D.Family Medicine Physician1366624892
  7. Thomas Nguyen, PTPhysical Therapist1083923064
  8. Thuvan Nguyen, ODOptometrist1932084415
  9. Thuy NguyenPharmacist1154855211
  10. Thuy NguyenLicensed Vocational Nurse1346964681
  11. Thuyminh NguyenMarriage & Family Therapist1003187998
  12. Tin Nguyen, RPHPharmacist1649152760
  13. Toan NguyenCase Manager/Care Coordinator1821208125
  14. Tony NguyenBehavior Technician1457917189
  15. Tracy NguyenSchool Counselor1083340582
  16. Trang Nguyen, MDPlastic Surgery Physician1023266160
  17. Trang NguyenMental Health Counselor1356998223
  18. Trina Nguyen, MDStudent in an Organized Health Care Education/Training Program1467390880
  19. Trong-Nghia NguyenPharmacist1003289844
  20. Truc NguyenMarriage & Family Therapist1083956197
  21. Tuc Nguyen, D.C.Rehabilitation Chiropractor1912029927
  22. Van Nguyen, PHARM. D.Psychiatric Pharmacist1902281199
  23. VI NguyenPharmacist1629155833
  24. Vy Nguyen, DOStudent in an Organized Health Care Education/Training Program1063125813
  25. Yen Nguyen, M.D.Internal Medicine Physician1063614147
  26. Thuy Nguyen ScottStudent in an Organized Health Care Education/Training Program1639831431
  27. Caitlin Nguyen-BravoAudiologist1295600203
  28. Van-Giang Nguyen-PhamPharmacist1841560539
  29. Phuong Nguyen-Tran, PHARMDPharmacist1104433028
  30. Jacqueline Nhok, B.A.Case Manager/Care Coordinator1558579474
  31. Elizabeth NiarhosAddiction (Substance Use Disorder) Counselor1619447455
  32. Abid NiaziCase Manager/Care Coordinator1467908681
  33. Chelsea Nicholas, PTPhysical Therapist1952942492
  34. Czar NicholasBehavior Technician1437655412
  35. D. NicholsPediatric Oncology Registered Nurse1033244058
  36. Scott Nickell, MSN, FNPOccupational Health Nurse Practitioner1306099825
  37. Esther Nickelson, FNP-CNurse Practitioner1164068268
  38. John Nickens, PHDClinical Psychologist1427115542
  39. Lena Nicodemus, MA, LMFTMarriage & Family Therapist1457725418
  40. Natasha Nicolai, DPTPhysical Therapist1710904420
  41. Arrian NicolasCommunity Health Worker1902447725
  42. Heidi Nicoll-Merson, MDAnesthesiology Physician1073558565
  43. Anna Nidhiry, DOStudent in an Organized Health Care Education/Training Program1407659238
  44. Rachel NielsenMarriage & Family Therapist1700708724
  45. Molly Niemuth, BSN, RN, CCRNRegistered Nurse1518699537
  46. Diana Nieto-CamposMental Health Counselor1093103616
  47. Devin NighMarriage & Family Therapist1003360967
  48. Kyla Nighohossian, M.D.Psychiatry Physician1316328982
  49. Marie NightingaleSpeech-Language Pathologist1760335731
  50. Julianne Nigro, ASWSocial Worker1427717164

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.