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 212 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. Christopher MasonAddiction (Substance Use Disorder) Counselor1821828831
  2. Erica Mason, CPNPPediatric Nurse Practitioner1023177912
  3. Michelle Mason, PHDClinical Psychologist1780937599
  4. Nina MasonSocial Worker1518246537
  5. Renee Masotti, MA, MFTMarriage & Family Therapist1528278512
  6. Farzad Masroor, MDInternal Medicine Physician1467686212
  7. Anna Massa, LMFTMarriage & Family Therapist1073921383
  8. Lauren Massell, LCSWClinical Social Worker1073226551
  9. Maria Massella Hernandez, NPFamily Medicine Physician1962917377
  10. Paula Massengill, LCSWClinical Social Worker1396178414
  11. Allison MasseyPeer Specialist1114294899
  12. Ebony MasseyAdult Companion1447974134
  13. Kenneth MasseyAdult Companion1124949714
  14. Mozmin Mastan-OliveraCommunity Health Worker1184447096
  15. Ankoor MasterMental Health Counselor1144485483
  16. Constantina Master, MDCritical Care Medicine (Internal Medicine) Physician1194803999
  17. Mazu Master, LMFTMarriage & Family Therapist1679780506
  18. Andrea Masters, FNP, MPHPsychiatric/Mental Health Nurse Practitioner1457861783
  19. Lakeida MastersStudent in an Organized Health Care Education/Training Program1639742091
  20. Carol Masters-Salnave, LMFTMarriage & Family Therapist1881894509
  21. Carmen MataHealth Educator1760978340
  22. Eyal MatalonPsychologist1518484765
  23. Nicole Matamoros-PhippsSocial Worker1992214423
  24. Aidaly MatancillasBehavior Technician1124999701
  25. Robert Matano, PH.D.Addiction (Substance Use Disorder) Psychologist1467483123
  26. Wendolyn Matarrese, PAPhysician Assistant1649373952
  27. Nanise MatasauHealth Information Technician1487354171
  28. Nicole MateSchool Psychologist1083447429
  29. Karina MateosDay Training/Habilitation Specialist1134838030
  30. Ashlyn MathesCounselor1710640693
  31. Rita Mathew, MSW,PPSCClinical Social Worker1902038508
  32. Inika MathewsCounselor1083776132
  33. Jeffrey MathewsOccupational Therapy Assistant1518355130
  34. Reshma Mathews, DOEmergency Medicine Physician1417363318
  35. Suzanne Mathias, CMTMassage Therapist1487429767
  36. Anushka Mathur, RDNRegistered Dietitian1386397727
  37. Gaurav Mathur, MDHospice and Palliative Medicine (Family Medicine) Physician1487731154
  38. Malay Mathur, DDS, MSPediatric Dentistry1811319841
  39. Tripti Mathur, MBBSStudent in an Organized Health Care Education/Training Program1720924889
  40. Melenie MatianPhysician Assistant1528911336
  41. Laverne Matias, MFTMarriage & Family Therapist1336379205
  42. Lucinda Matias MendozaHealth & Wellness Coach1639008345
  43. Mayra Matias Pablo, CARE COORDINATORCase Manager/Care Coordinator1619659554
  44. Amin Matin, M.D., M.P.H.Diagnostic Radiology Physician1003038860
  45. Penelope Mato Vilar, MFTIMarriage & Family Therapist1295254852
  46. Anthony MatriccianiClinical Social Worker1063106029
  47. Sandra MatsonBehavior Technician1033921218
  48. Kenneth Matsumura, M.D.Family Medicine Physician1871610832
  49. Alison Matsunaga, MDPediatric Hematology & Oncology Physician1770655078
  50. Donna Matsunaga, PTPhysical Therapist1427123256

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.