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 334 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. Ciauna Tran, DOStudent in an Organized Health Care Education/Training Program1033911102
  2. Cindy TranBehavior Technician1699266221
  3. Cindy TranPharmacist1386272821
  4. Daniel TranRegistered Nurse1346095833
  5. Do Tran, RPHPharmacist1487673752
  6. Hac TranCase Manager/Care Coordinator1093926313
  7. Hannah TranBehavior Technician1699327882
  8. Hien Tran, MDStudent in an Organized Health Care Education/Training Program1558636902
  9. Hien TranPharmacist1710411921
  10. Hoai-Huong Tran, PA-CSurgical Physician Assistant1518203652
  11. Hoang-Vu Tran, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1679960892
  12. Jenna TranRegistered Nurse1881543460
  13. Kristina Tran, DDSDentist1497082739
  14. Linh TranCounselor1477786978
  15. Linh TranMental Health Counselor1043550023
  16. Mary Therese Tran, M.D.Pediatrics Physician1225328156
  17. Michelle TranRegistered Nurse1770981094
  18. Nghi TranOccupational Therapist1720773443
  19. Nhi TranFamily Medicine Physician1205223161
  20. Nhu Thuy TranBehavior Technician1043706468
  21. Nicholas Tran, MDStudent in an Organized Health Care Education/Training Program1992334957
  22. Phuoc TranClinical Social Worker1699459446
  23. Quynh Tran, MDPediatrics Physician1518037001
  24. Quynh TranCommunity Health Worker1982835930
  25. Sara Tran, MDStudent in an Organized Health Care Education/Training Program1720881642
  26. Thanh Tran, M.D.Student in an Organized Health Care Education/Training Program1194081950
  27. Thuy Tran, ASWMental Health Counselor1639451834
  28. Thuy-An Tran, MDInternal Medicine Physician1760919021
  29. Tien Tran, DCChiropractor1578773966
  30. Tiffany TranStudent in an Organized Health Care Education/Training Program1073106936
  31. Tiffany Tran, MDStudent in an Organized Health Care Education/Training Program1447052022
  32. Tina Tran, OTR/LOccupational Therapist1962972166
  33. Tina Tran, MDStudent in an Organized Health Care Education/Training Program1881446995
  34. Trang TranCommunity Health Worker1306486113
  35. Vinhbao TranRegistered Nurse1770409591
  36. Vivan TranStudent in an Organized Health Care Education/Training Program1548687429
  37. Vu Tran, B.S., D.C.Chiropractor1952579583
  38. Teresita TranceNurse's Aide1447176946
  39. Kelly Trautman, OTR, MOTHand Occupational Therapist1730623661
  40. Graham Travenick, BCBABehavior Analyst1982130191
  41. Bayla TravisClinical Psychologist1700179553
  42. Amater Traylor, MDOphthalmology Physician1033178876
  43. Theresa TraynorSocial Worker1942627278
  44. Marsha Treadwell, PHDHealth Service Psychologist1851955058
  45. Erin TrefnyDay Training/Habilitation Specialist1548093719
  46. Luis TrejoRehabilitation Practitioner1023140555
  47. Oscar Trejo Baide, MSWSocial Worker1871725390
  48. Vanelly Trejo-PinedaCounselor1104464064
  49. Angelique Tremble, PAPhysician Assistant1952577033
  50. Raquel Trenado, R.D.Registered Dietitian1588985436

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.