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 336 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. Timothy Truong, MDOphthalmology Physician1013576644
  2. Mary Truskier, R.N., M.S., P.N.P.Pediatric Nurse Practitioner1053648402
  3. Lily Trytten, MDStudent in an Organized Health Care Education/Training Program1770384810
  4. Daniel Tsai, MDStudent in an Organized Health Care Education/Training Program1730948894
  5. Devin Tsai, D.O.Emergency Medicine Physician1962609958
  6. Pai Jei TsaiClinical Social Worker1689703662
  7. Pei-Yu Tsai, ODOptometrist1679050553
  8. Shirley Tsai, MDPediatrics Physician1760560536
  9. Wen-Yee Tsai, MDEndocrinology, Diabetes & Metabolism Physician1952425803
  10. Wu-Der Tsai, DDSGeneral Practice Dentistry1447360268
  11. Yueh Tsai, LACAcupuncturist1649040130
  12. Yun Chan Alex Tsai, LMFTMarriage & Family Therapist1972905685
  13. Kit Sun TsangCase Manager/Care Coordinator1619347549
  14. Michael Tsang, M.D.Cardiovascular Disease Physician1053335117
  15. Mimi Tsang, AMFTMental Health Counselor1316899032
  16. Serena TsangMarriage & Family Therapist1114543782
  17. Anthony Tsao, M.D.Internal Medicine Physician1467634493
  18. Angie TseSchool Psychologist1770182206
  19. Crystal TseStudent in an Organized Health Care Education/Training Program1982406823
  20. Josefa Tse, RNRegistered Nurse1619299229
  21. Joyce Tse, DDSGeneral Practice Dentistry1619905247
  22. Katherine Tse, DDSPediatric Dentistry1659003630
  23. Wilson Tse, MDInternal Medicine Physician1467530246
  24. Yuen Tse, MFTIMarriage & Family Therapist1750591996
  25. Catherine Tse-Harris, PHARM DPharmacist1902994601
  26. Lula Tsegay, DDSDentist1255311346
  27. Meaza TsegayeOccupational Therapy Assistant1497289300
  28. Angel Tseng, PSYDSchool Counselor1770210775
  29. Pontsho TsianeDoula1902657802
  30. Florence Tso, MDInternal Medicine Physician1821176611
  31. Delbert TsoiCommunity Health Worker1831615079
  32. Erin Tsuchimoto, MDPediatrics Physician1902816572
  33. Kyoko Tsuchiya, MA, MFTMarriage & Family Therapist1457531816
  34. Chi Yan TsuiCommunity Health Worker1528788049
  35. Christopher Tsui, PHARMDPharmacist1437430105
  36. Kin Yi Tsui, OTR/LOccupational Therapist1225634124
  37. Ted Tsukayama, MDInternal Medicine Physician1134207921
  38. Jacqueline TsuruiMarriage & Family Therapist1447446927
  39. Akiko Tsuzuki, MDInternal Medicine Physician1679651459
  40. Shawn TsztooBehavior Analyst1003533381
  41. Wendy Tu, RNRegistered Nurse1841187119
  42. Anna Cristina TuazonStudent in an Organized Health Care Education/Training Program1437459005
  43. Ana Tucker, LCSWClinical Social Worker1033096490
  44. Rachel Tucker, MFTMental Health Counselor1588896765
  45. Ruth Tucker, RNAdult Psychiatric/Mental Health Registered Nurse1386788511
  46. Shirley Tucker-Harris, M.D.Internal Medicine Physician1285749762
  47. Robert Tufft, MDGeriatric Medicine (Internal Medicine) Physician1619010121
  48. Eden TuhameLicensed Psychiatric Technician1245097054
  49. Denise Tukenmez, MDPediatrics Physician1033296066
  50. Andrea Tulais SantarosaRehabilitation Practitioner1639889736

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.