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 140 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. Elizabeth Hernandez-PolancoDay Training/Habilitation Specialist1902754773
  2. James Hernandez-VelascoDay Training/Habilitation Specialist1730044132
  3. Celina Hernandezramirez, LCSWClinical Social Worker1437253697
  4. Jocelyn HernandnezBehavior Technician1760032049
  5. Alexander HerndonCounselor1831758812
  6. Cynthia HerndonCounselor1811793367
  7. Rachel HerndonClinical Social Worker1720520125
  8. Anastasia Herold, ASWClinical Social Worker1376403212
  9. David Heron, L.AC, DACMAcupuncturist1194153932
  10. Ana Herrador, LMFTMarriage & Family Therapist1497931299
  11. Alejandra HerreraCommunity Health Worker1396424685
  12. Amanda Herrera, LCSWClinical Social Worker1164673828
  13. Daisy HerreraDay Training/Habilitation Specialist1760985097
  14. Elsy HerreraSocial Worker1366863334
  15. Faranak Herrera, D.O.Internal Medicine Physician1386877892
  16. Karen Herrera, RNPediatric Registered Nurse1669711784
  17. Magda HerreraBehavior Technician1053809541
  18. Maleni HerreraOther Technician1629566609
  19. Maria HerreraMarriage & Family Therapist1396986139
  20. Melissa HerreraCase Manager/Care Coordinator1376160770
  21. Rafael Herrera, LCSWClinical Social Worker1104034941
  22. Sergio HerreraMassage Therapist1417627837
  23. Sergio HerreraCase Manager/Care Coordinator1154044741
  24. Mayra Herrera De SouzaCommunity Health Worker1518773480
  25. Karina Herrera DiazCommunity Health Worker1013674555
  26. Tonia Herrero, MPS, ATR-BC, LCATArt Therapist1104383678
  27. Amy Herrick, CRNACertified Registered Nurse Anesthetist1326149329
  28. Andrew Herring, M.D.Emergency Medicine Physician1730498718
  29. Steven Herrmann, PHD MFTMarriage & Family Therapist1679605968
  30. Katie HerronStudent in an Organized Health Care Education/Training Program1700389699
  31. Lemar HerronMental Health Counselor1841577483
  32. Tarchie HerronMental Health Counselor1609128842
  33. Helena Hershel, PH.D. MFTMarriage & Family Therapist1245436278
  34. Nicholas Herzmark, M.F.T.Mental Health Counselor1396819686
  35. Matthew HeslopCase Manager/Care Coordinator1265839815
  36. Sarah Hester, M.A., MFTMarriage & Family Therapist1144543844
  37. Tiffanie HesterDay Training/Habilitation Specialist1588998280
  38. Jamie Hettiaratchi, PTPhysical Therapist1396893681
  39. Katherine HeubeckMarriage & Family Therapist1013783158
  40. Alexandria HeuerBehavior Technician1912493347
  41. Lauren Hewett, PA-C, MMSPhysician Assistant1235519042
  42. Erika HewittAddiction (Substance Use Disorder) Counselor1710691563
  43. Margaux Hewitt-Slade, CADC-IDay Training/Habilitation Specialist1629421631
  44. Alisha Heximer, MDSurgery Physician1154063253
  45. Bridget HiattRegistered Nurse1568389344
  46. John Hiatt, MDPsychiatry Physician1780693093
  47. Mackenzie Hichman, AU.D.Audiologist1073480554
  48. Tiffini HickersonCase Manager/Care Coordinator1265083190
  49. Therese Hickey, MDAnesthesiology Physician1003994880
  50. Timothy Hickey, FNP-CFamily Nurse Practitioner1346706256

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.