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 211 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. Leonor MartinezSocial Worker1104260975
  2. Magdalene MartinezClinical Social Worker1255819959
  3. Maraya MartinezBehavior Technician1871423004
  4. Maria MartinezMental Health Counselor1760931968
  5. Maria Gabriela MartinezMental Health Counselor1841494135
  6. Martha Martinez, MPAMental Health Counselor1457640856
  7. Martin MartinezAddiction (Substance Use Disorder) Counselor1083804082
  8. Melissa MartinezClinical Social Worker1417566456
  9. Michelle MartinezCounselor1427111756
  10. Osvaldo Martinez, MSWSocial Worker1225955792
  11. Rafael MartinezMental Health Counselor1821347410
  12. Rebecca MartinezPeer Specialist1407608292
  13. Rosario Martinez, RNRegistered Nurse1215158183
  14. Samuel Martinez, LCSWSchool Social Worker1861612780
  15. Sandra MartinezMental Health Counselor1558540187
  16. Shene Martinez, CD, CPD, CLEC, CCCEDoula1972360261
  17. Alejandra Martinez AlonzoRehabilitation Practitioner1851090740
  18. Shaddai Martinez CuestasMarriage & Family Therapist1578396727
  19. Diana Martinez GarciaStudent in an Organized Health Care Education/Training Program1942783295
  20. Mariana Martinez MelgozaMarriage & Family Therapist1497328546
  21. Maritza Martinez MelgozaMarriage & Family Therapist1104499250
  22. Elizabeth Martinez Moreno, AMFTMarriage & Family Therapist1396357612
  23. Daisy Martinez Siles, MSN, RN, FNPRegistered Nurse1265120323
  24. Alvaro Martinez TorresSpeech-Language Pathologist1144171208
  25. Roseanne Martinez ToutjianMarriage & Family Therapist1336332543
  26. Evelyn Martinez-SalazarPediatrics Physician1710482880
  27. Amy MartiniPhysician Assistant1992155360
  28. Michael Martinucci, M.D.Diagnostic Radiology Physician1932142619
  29. Jennifer Martling, PTAPhysical Therapy Assistant1689081622
  30. Gabriella MartoranoAddiction (Substance Use Disorder) Counselor1922742634
  31. Norma Marubayashi Holloway, PHARMDPharmacist1003954751
  32. Nina Marucheck, AMFTMental Health Counselor1578704961
  33. Anne MarumahokoStudent in an Organized Health Care Education/Training Program1447081211
  34. Emiko MaruriPsychiatric/Mental Health Nurse Practitioner1356914816
  35. Caitlin MarvasoStudent in an Organized Health Care Education/Training Program1609399591
  36. Adam Marvin, M.D.Plastic Surgery within the Head & Neck (Otolaryngology) Physician1275528572
  37. Juliana Marx-Andler, LCSWClinical Social Worker1013293208
  38. Joseph Marzouk, M.D.Infectious Disease Physician1174636393
  39. Theodora MarzoukHome Health Aide1174045744
  40. Erika Masak-Goldman, LMFTMarriage & Family Therapist1639262033
  41. Monica MasakiBehavior Technician1609367234
  42. Brittany Ann MasangkayMarriage & Family Therapist1992355333
  43. Mathias Masem, M.D.Orthopaedic Hand Surgery Physician1508810938
  44. Joseph Mashinchi, P.A.Physician Assistant1184004913
  45. Nadia Mashni, LMFTMarriage & Family Therapist1255762357
  46. Selma Masic, M.D.Urology Physician1134486368
  47. Rhealeen MasilangLicensed Vocational Nurse1629420674
  48. Sirena Masket, OTROccupational Therapist1417757881
  49. Elana Maslow, MSWClinical Social Worker1073473997
  50. Mustafa Masody, RCPCertified Respiratory Therapist1457824187

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.