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 335 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. Beverly TrentCounselor1093307316
  2. Jamila TrevillionCounselor1669950002
  3. Isabel TrevinoAddiction (Substance Use Disorder) Counselor1649752585
  4. Jose TrevinoSpecialist1720407208
  5. Pele TrevinoPeer Specialist1699551267
  6. Michelle TrieuStudent in an Organized Health Care Education/Training Program1871052092
  7. Phuong Trieu, PHARM.D.Pharmacist1740431881
  8. Shirley TrieuRegistered Nurse1467332957
  9. Martha Trigueros, MSWStudent in an Organized Health Care Education/Training Program1144415654
  10. Marina Trilesskaya, M.D.Interventional Cardiology Physician1588893580
  11. Erica Trimble, NPNurse Practitioner1710960521
  12. Clare Trimbur, PSY.D.Psychologist1659682342
  13. Bonita Trinclisti, F.N.P.Family Nurse Practitioner1245259381
  14. Lauren TrindadeCounselor1578953352
  15. Erica Tringale, N.P,Pediatric Nurse Practitioner1003152794
  16. Brian Trinh, D.D.S.General Practice Dentistry1720085194
  17. Christine TrinhStudent in an Organized Health Care Education/Training Program1336778182
  18. Jemina TrinhHealth Information Technician1811768716
  19. Lan TrinhClinical Social Worker1184958233
  20. Luc Trinh, PHARMDAmbulatory Care Pharmacist1619635414
  21. Thao-Chau Trinh, MS, PSYDClinical Child & Adolescent Psychologist1386208569
  22. Prasant TripathyMental Health Counselor1821129198
  23. Theodora TriplisCommunity Health Worker1881471886
  24. Himja TrivediMarriage & Family Therapist1083286850
  25. Angelina TroiaBehavior Technician1245806892
  26. Jose Troncoso, MDRheumatology Physician1457439234
  27. Ariel Trost, PHDPsychologist1245552850
  28. Chelsea TrottaCertified Registered Nurse Anesthetist1346706264
  29. Ronald Trotter, MSW, ASWClinical Social Worker1437592474
  30. Saun-Toy TrotterMental Health Counselor1578762365
  31. Loreena Trotter JohnstonMarriage & Family Therapist1083376933
  32. Teresa Trout, LMFTMarriage & Family Therapist1639904410
  33. Kaya TroyeRegistered Nurse1184505406
  34. Denise TrudeauCounselor1972275576
  35. Chelsea TruesdellBehavior Analyst1508332388
  36. Carol TruexLicensed Vocational Nurse1699198150
  37. Nicole TrujilloHealth & Wellness Coach1184555286
  38. Patricia Trujillo, RDRegistered Dietitian1730501891
  39. Alison Trules, MSW LCSWClinical Social Worker1033376272
  40. Carmen TruongRegistered Nurse1639959851
  41. Diana Truong, MSStudent in an Organized Health Care Education/Training Program1710027016
  42. Hien TruongPhysician Assistant1467089821
  43. Kimberly TruongStudent in an Organized Health Care Education/Training Program1891672432
  44. Linh TruongMarriage & Family Therapist1669132965
  45. Louise Truong, M.D.Diagnostic Radiology Physician1386961985
  46. Oanh Truong, MSMental Health Counselor1083823298
  47. Quynh-Nhu Truong, L.ACAcupuncturist1245620673
  48. Sean Truong, PHARM.D.Psychiatric Pharmacist1679991343
  49. Tan Truong, O.D., M.P.H.Optometrist1487707071
  50. Tiffany TruongStudent in an Organized Health Care Education/Training Program1205245180

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.