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 123 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. Matthew Green, D.C.Sports Physician Chiropractor1124220793
  2. Mikeia Green, MDStudent in an Organized Health Care Education/Training Program1457059800
  3. Monica GreenSpecialist1598177636
  4. Monika Green, MFTMarriage & Family Therapist1922135839
  5. Pamela GreenCounselor1730551383
  6. Ruth Green, NPFamily Nurse Practitioner1730351669
  7. Samantha GreenSpeech-Language Pathologist1548111735
  8. Sherrika Green, PSY.D.Clinical Psychologist1265815971
  9. Shoshana Green, M.A.Marriage & Family Therapist1669615001
  10. Sophia Green, MA, LMFTMental Health Counselor1407403389
  11. Victoria Green, MS, OTR/LPediatric Occupational Therapist1093235756
  12. Willie GreenDay Training/Habilitation Specialist1871410977
  13. David Greenberg, RNCommunity Health Registered Nurse1598114753
  14. James Greenberg, LCSWSocial Worker1619178704
  15. Lisa Greenberg, PH.D.Clinical Psychologist1144410804
  16. Mara Greenberg, MDGynecology Physician1104994177
  17. Caitlyn GreeneMarriage & Family Therapist1801663059
  18. Deborah Greene, M.D.Public Health & General Preventive Medicine Physician1437379559
  19. Evan GreeneMarriage & Family Therapist1578086245
  20. Joshua Greene, AMFTMental Health Counselor1659096378
  21. Maayan Greene, M.S.W.Clinical Social Worker1811171994
  22. Madeline GreeneMental Health Counselor1538594338
  23. Mikaela GreenePeer Specialist1356219281
  24. Robert Greene, M.D.Cardiovascular Disease Physician1639193709
  25. Elizabeth Greenfield, CRNACertified Registered Nurse Anesthetist1659517415
  26. Jane Greenfield, LCSWClinical Social Worker1861827735
  27. Jared Greenholz, MDEmergency Medicine Physician1417930520
  28. Queziah Greenidge, MDInternal Medicine Physician1760913701
  29. Stephanie Greenspan, PTPhysical Therapist1376557686
  30. Cyndi GreensteinSchool Counselor1588857502
  31. Susan Greenwald, LCSWClinical Social Worker1538282579
  32. Erin GreenwoodSocial Worker1447438122
  33. Janine GreerCounselor1669639688
  34. Sienna Gregan, AMFTMental Health Counselor1639648520
  35. Lanette GreggsStudent in an Organized Health Care Education/Training Program1033815030
  36. Dazie GregoCase Manager/Care Coordinator1629832712
  37. Ethan GregorCounselor1225460702
  38. Angela GregoryAddiction (Substance Use Disorder) Counselor1811198757
  39. Barbara Gregory, FNPFamily Nurse Practitioner1154304814
  40. Blake Gregory, M.D.Internal Medicine Physician1881912129
  41. Stephanie GregoryMassage Therapist1700768082
  42. Jon Greif, D.O.Surgery Physician1306958095
  43. Max GreinerStudent in an Organized Health Care Education/Training Program1174036404
  44. Lauren GreisSocial Worker1841857174
  45. Elizabeth Greivel, LMFTMarriage & Family Therapist1316443187
  46. Allison GremillionStudent in an Organized Health Care Education/Training Program1164987012
  47. Eric GremillionMental Health Counselor1558616805
  48. Denicia GresselCommunity Health Worker1104234228
  49. Sarah GretaClinical Social Worker1568331783
  50. Gagandeep GrewalMental Health Counselor1609219807

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.