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 352 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. Hua WeiMarriage & Family Therapist1396392585
  2. Man-Tso WeiClinical Social Worker1376188474
  3. Nancy Wei, R.D.Registered Dietitian1679990303
  4. Wei WeiAcupuncturist1912067562
  5. Anna WeickerClinical Psychologist1174040521
  6. Jenny WeidenbennerRegistered Nurse1164825881
  7. Mikaela WeidmanMarriage & Family Therapist1578242962
  8. Douglas WeilClinical Social Worker1659832186
  9. Victoria Weinand, PA-CSurgical Physician Assistant1639362874
  10. Amy WeinbergProfessional Counselor1184142622
  11. Sarah Weinberg, LICENSED CLINICAL SOClinical Social Worker1508949868
  12. Beverley Weinberger, PHD.Student in an Organized Health Care Education/Training Program1568897551
  13. Daniel Weiner, PH.D.Psychologist1942574892
  14. Melvin Weinert, MDInternal Medicine Physician1508944380
  15. Morey Weingarten, MDPain Medicine (Psychiatry & Neurology) Physician1205924701
  16. Donald Weinger, M.A., M.S., CCC-SLPSpeech-Language Pathologist1881545069
  17. David Weinstein, M.F.T.Marriage & Family Therapist1083815518
  18. Maisha Weinstein, LMFTMarriage & Family Therapist1316425028
  19. Marisa Weinstock, ASWSchool Counselor1336006758
  20. Abigail Weintraub, MFTMental Health Counselor1659983955
  21. Elizabeth WeintrobStudent in an Organized Health Care Education/Training Program1730561820
  22. Spencer Weir, MSN, FNPFamily Nurse Practitioner1952729014
  23. Roberta WeisbardMental Health Counselor1407043524
  24. Genevieve Weiscovitz, PSY.D.Student in an Organized Health Care Education/Training Program1790933067
  25. Scott Weisenberg, M.D.Infectious Disease Physician1366609042
  26. Timothy WeisenforthCritical Care Medicine Registered Nurse1730817974
  27. Hannah Weiss, LM, CPMMidwife1568876761
  28. Jacquelyn Weiss, M.D.Neurology Physician1164567053
  29. Jonathan Weiss, M.D., F.A.C.O.GMaternal & Fetal Medicine Physician1770523771
  30. Maia Weiss, LCSWSocial Worker1528418159
  31. Zachary WeissMental Health Counselor1598689119
  32. Laura Weissberger, LCSWClinical Social Worker1184027229
  33. Elizabeth Weisz, PH.D.Psychologist1740933225
  34. Layla Welborn, FNPFamily Nurse Practitioner1053711994
  35. Lynn Welch, MFTMarriage & Family Therapist1336447580
  36. Brittany Weldon, M.D.Pediatrics Physician1457527236
  37. Janice Wells, LCSWClinical Social Worker1760534671
  38. Kamaria WellsStudent in an Organized Health Care Education/Training Program1013359017
  39. Lloyd Wells, LCSWClinical Social Worker1568514859
  40. Vicki Wells, M.A.Behavior Analyst1407167281
  41. Brianna Wells-SinghDoula1780429373
  42. Garrett WelshCritical Care Medicine Registered Nurse1376149195
  43. Jessica WelshMarriage & Family Therapist1558647735
  44. Madeleine WeltePsychologist1275180952
  45. Christopher Welty, MDUrology Physician1750571360
  46. Andrew Wen, MDPediatrics Physician1215015011
  47. Chih-Hsin Wen, MDUrology Physician1477517084
  48. Crystal Wen, RNRegistered Nurse1154162915
  49. Jimmy Wen, MDStudent in an Organized Health Care Education/Training Program1215876487
  50. David Wender, DOFamily Medicine Physician1740368547

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.