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 308 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. Guinevere SimsBehavior Technician1710530258
  2. Mary Jayne Sims, PH.DClinical Psychologist1063610012
  3. Miah SimsMarriage & Family Therapist1083932420
  4. Simone SimsDay Training/Habilitation Specialist1235461948
  5. Wynton SimsStudent in an Organized Health Care Education/Training Program1750175972
  6. Andrea SimunovichMental Health Counselor1376718361
  7. Ellen Sin, RNRegistered Nurse1245156876
  8. Marisa Singer, LCSWClinical Social Worker1508237504
  9. Samuel Singer, M.D.Pediatrics Physician1417224890
  10. Sylvia Singer, MDPediatric Hematology & Oncology Physician1619031523
  11. Aman Deep Singh, M.D.Psychiatry Physician1962767376
  12. Amandeep Singh, MDEmergency Medicine Physician1124000195
  13. Amarinder Singh, M.D.Emergency Medicine Physician1023435468
  14. Anisha SinghMarriage & Family Therapist1841798261
  15. Basant Singh, M.D.Psychiatry Physician1447299680
  16. Divya Singh, M.D.Orthopaedic Hand Surgery Physician1235264540
  17. Helen Singh, LMFT 50409Marriage & Family Therapist1215083712
  18. Ishika SinghLicensed Vocational Nurse1972285054
  19. Jaswinder SinghDental Hygienist1265969505
  20. Manpreet Singh, LCSWClinical Social Worker1811544950
  21. Namita Singh, M.D.Obstetrics & Gynecology Physician1235149808
  22. Navdeep SinghVascular Sonography Radiologic Technologist1427853050
  23. Neal SinghCommunity Health Worker1437964897
  24. Nilu Singh, PHARM.D.Pharmacist1063649481
  25. Nina SinghStudent in an Organized Health Care Education/Training Program1679265276
  26. Novejit SinghRegistered Nurse1386519577
  27. Parul SinghPharmacist1790178598
  28. Prachi Singh, D.O.Pediatric Infectious Diseases Physician1720346323
  29. Preetkanwal SinghHealth Information Technician1235801796
  30. Priya SinghStudent in an Organized Health Care Education/Training Program1356267637
  31. Sahiba SinghHealth Information Technician1104537612
  32. Sanjay SinghDay Training/Habilitation Specialist1255258075
  33. Selene SinghCounselor1053962779
  34. Sharon SinghAdult Companion1194411520
  35. Sheena SinghAmbulatory Care Registered Nurse1528526712
  36. Sneha Singh, MDStudent in an Organized Health Care Education/Training Program1700633310
  37. Sophia SinghSocial Worker1366644585
  38. Sukhbeer SinghStudent in an Organized Health Care Education/Training Program1538364427
  39. Preeti Singhal, MDCardiovascular Disease Physician1053870378
  40. Jennifer Singler, M.D.Pediatrics Physician1902064017
  41. Annastia SingletonBehavior Analyst1063305639
  42. Crystle SingletonDay Training/Habilitation Specialist1497453922
  43. Herbert Singleton, L.C.S.W.Clinical Social Worker1588682207
  44. Tanya Singleton, DPMFoot & Ankle Surgery Podiatrist1659676807
  45. Vera Singleton, NDNaturopath1851688824
  46. Laura SingleyMental Health Counselor1851584262
  47. Bernhard Singsen, M.D.Pediatric Rheumatology Physician1457462327
  48. Marianna Singwi-FerronoSchool Social Worker1164389581
  49. Sankalp Sinha, DOStudent in an Organized Health Care Education/Training Program1760276786
  50. Ebony Sinnamon-JohnsonMarriage & Family Therapist1831508100

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.