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 209 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. Nathaniel MarkmanPhysical Therapist1144890419
  2. Anita Markoff, P.N.P.Pediatric Nurse Practitioner1023163045
  3. Natasha MarkovichHealth Educator1821368937
  4. Meghan Markowski, PAPhysician Assistant1528317047
  5. Stanley Markowski, PSY.D.Clinical Psychologist1578883872
  6. Elizabeth MarksMarriage & Family Therapist1962818732
  7. Kathy Marks, OTR/LOccupational Therapist1497084446
  8. Laurel MarksClinical Social Worker1205404332
  9. Naomi Marks, M.D.Emergency Medicine Physician1952547937
  10. Diana Marks WilliamsCounselor1457129488
  11. Anvitha Marlapati, BCATBehavior Technician1063234771
  12. Shyanne MarlettBehavior Technician1508665696
  13. Dawn Marlette, CCC-SLPSpeech-Language Pathologist1588500755
  14. Alyson MarlowClinical Social Worker1306240197
  15. Denise Marlow-Lehrman, D.C.Chiropractor1588797062
  16. Alexis MaronaBehavior Technician1366947764
  17. Theresa Marquardt, ASWClinical Social Worker1295196988
  18. Jessica Marques, NPFFamily Nurse Practitioner1477700813
  19. Stephanie Marquet, MDHospitalist Physician1194800854
  20. Blanca Marquez, LCSWClinical Social Worker1295255362
  21. Elisa Marquez, BACase Manager/Care Coordinator1851573182
  22. Graciela MarquezPeer Specialist1124706262
  23. Isabel MarquezDay Training/Habilitation Specialist1144997776
  24. Kimberly MarquezMental Health Counselor1376818112
  25. Leia MarquezAddiction (Substance Use Disorder) Counselor1225351588
  26. Lorena MarquezCounselor1558905497
  27. Rosemary MarquezCounselor1700375441
  28. Jose Marquez CuevasSpecialist1144040619
  29. Georgia Marquez-GrapStudent in an Organized Health Care Education/Training Program1972442507
  30. Joseph Marquis, MDInternal Medicine Physician1598084329
  31. Paschen MarrableDay Training/Habilitation Specialist1265031934
  32. Ken Marriner, M.D.Family Medicine Physician1013264126
  33. Yesenia MarsalaAddiction (Substance Use Disorder) Counselor1609041540
  34. Roger Marsden, PH.D MFTMental Health Counselor1487334256
  35. Jermaine MarshMental Health Counselor1326312927
  36. Vernita Marsh, PH.D.Clinical Psychologist1215301056
  37. Alyssa MarshallDay Training/Habilitation Specialist1972466647
  38. Anne Marshall, PH.D.Clinical Psychologist1710084785
  39. Ashli MarshallMental Health Counselor1669632733
  40. Cassandra MarshallBehavior Technician1568017259
  41. Haley MarshallBehavior Technician1467272468
  42. Jennifer MarshallRehabilitation Practitioner1588473045
  43. Kaki Marshall, B.S.Case Manager/Care Coordinator1235431420
  44. Phillip MarshallAddiction (Substance Use Disorder) Counselor1720966187
  45. Rhonda MarshallAddiction (Substance Use Disorder) Counselor1962634964
  46. Hana Marsheck, DPTPhysical Therapist1619658044
  47. Susanna Marshland, LCSWClinical Social Worker1508928409
  48. Stephanie MarsiliClinical Social Worker1588041784
  49. Jean Marsters, M.D.Psychiatry Physician1265837439
  50. Page Martell, BAMental Health Counselor1750899332

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.