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 60 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. Lisa ChionisStudent in an Organized Health Care Education/Training Program1780443945
  2. Connie ChiouRegistered Nurse1740913250
  3. Lyly Chiou, M.D.Physical Medicine & Rehabilitation Physician1649597071
  4. Sirikanya Chiraroekmongkon, MDPsychiatry Physician1619597283
  5. Matthew ChisekCounselor1700407129
  6. Mahrukh Chishty-Qawam, O.D.Optometrist1992878474
  7. Mara Chitayat, M.F.T.Marriage & Family Therapist1730303629
  8. Nikhilesh ChitibommaStudent in an Organized Health Care Education/Training Program1063031896
  9. Nicole Chitnis, M.D.Pain Medicine Physician1265577068
  10. Geetali ChitreClinical Psychologist1215237334
  11. Catherine ChiuAnesthesiology Physician1962864413
  12. Connie Chiu, RNRegistered Nurse1629627310
  13. Cynthia Chiu, M.D.Ophthalmology Physician1306852629
  14. Heidi ChiuRegistered Nurse1710742580
  15. John Chiu, MDInterventional Cardiology Physician1629007000
  16. Karen Chiu, M.D.Psychiatry Physician1003976655
  17. Samantha ChiuMarriage & Family Therapist1184194748
  18. Denise Chmiel, MAMarriage & Family Therapist1205045317
  19. Brittany Chmiel-QuirkMarriage & Family Therapist1235772153
  20. Allison Cho, ODOptometrist1821231341
  21. Andrew Cho, DOStudent in an Organized Health Care Education/Training Program1073307773
  22. Christine Cho, M.D., M.P.H.Pediatric Emergency Medicine (Pediatrics) Physician1932121951
  23. Hye ChoStudent in an Organized Health Care Education/Training Program1710772405
  24. Irene Cho, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1124532031
  25. Jessica Cho, RNRegistered Nurse1912635343
  26. Maria Cho, FNP-BCFamily Nurse Practitioner1912422528
  27. Won Hee Cho, DDSDentist1760256630
  28. Tracy ChocholousekMarriage & Family Therapist1023745437
  29. Jon Chock, PHARMDOncology Pharmacist1730260043
  30. Tenzin Chodon, NURSE PRACTITIONERAcute Care Nurse Practitioner1053063073
  31. David Choe, PHARMDPharmacist1053856401
  32. Susie Choe, MDSurgery Physician1811075609
  33. Sonam Choegyel, NPFamily Nurse Practitioner1083391775
  34. Rajvir Chohan, LCSWClinical Social Worker1235993932
  35. Adrian Choi, DDSGeneral Practice Dentistry1083131700
  36. Chelsea Choi, MDStudent in an Organized Health Care Education/Training Program1104768571
  37. Christopher Choi, M.D.Pediatrics Physician1073898011
  38. Colby ChoiStudent in an Organized Health Care Education/Training Program1588502603
  39. Esther ChoiPharmacist1376892984
  40. Jeffrey ChoiSchool Counselor1376196857
  41. Jimmy Choi, MDEmergency Medicine Physician1316183965
  42. Jonathan Choi, P.A.-CPhysician Assistant1891929808
  43. Susan Choi, PA-CPhysician Assistant1700323888
  44. Susan Choi, R.N.Registered Nurse1730687674
  45. Poonam ChokshiMarriage & Family Therapist1326593393
  46. Albert Chong, MDStudent in an Organized Health Care Education/Training Program1275514416
  47. Curtis Chong, MDAnesthesiology Physician1346256120
  48. Edmund Chong, MDOtolaryngology Physician1730267899
  49. Terry Chong, MDSurgery Physician1306041264
  50. Timothy Chong, MDPediatrics Physician1336726819

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.