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 284 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. Maria Rojas, LVNLicensed Vocational Nurse1023290442
  2. Mary RojasMarriage & Family Therapist1003438219
  3. Monique RojasCounselor1588329478
  4. Rafael RojasCounselor1891950689
  5. Sofia RojasBehavior Analyst1881174977
  6. Vanessa RojasBehavior Technician1063291102
  7. Kevin Rojas ChavezBehavior Technician1730729872
  8. Ann Rojas-CheathamCommunity Health Worker1154699676
  9. Gabriela Rojas-Martinez, LCSWClinical Social Worker1841470960
  10. Hillary Roland, NDNaturopath1164731063
  11. Renz Marvin Roldan, REGISTERED NURSECase Management Registered Nurse1568331262
  12. Brittney RollinsMental Health Counselor1346558079
  13. Wendy RolonMental Health Counselor1023692423
  14. Regina RomanCommunity Health Worker1689904260
  15. Timothy Romano-Pugh, PPSCSchool Social Worker1316802408
  16. Rebecca Romanov, MDPediatrics Physician1003344615
  17. Benjamin Rombro, LAC.Acupuncturist1841180569
  18. Abigail Romero, MHAPhysician Assistant1558845891
  19. Aya RomeroCommunity Health Worker1710729827
  20. Christian RomeroDay Training/Habilitation Specialist1255088290
  21. Daniel RomeroDay Training/Habilitation Specialist1578399598
  22. Evelyn RomeroStudent in an Organized Health Care Education/Training Program1962783613
  23. Irma Romero, L.C.S.W.Clinical Social Worker1447498779
  24. Jackeline RomeroCase Manager/Care Coordinator1932838893
  25. Lelia RomeroPeer Specialist1326705344
  26. Richard Romero, RADTIAddiction (Substance Use Disorder) Counselor1023566742
  27. Robert Romero, DCChiropractor1215898465
  28. Steven RomeroCounselor1639309008
  29. Yvonne Romero, BCBABehavior Analyst1811499288
  30. Maddison Leigh RomoStudent in an Organized Health Care Education/Training Program1912512781
  31. Roman RomoCommunity Health Worker1215723515
  32. Alberto Romo ValenzuelaStudent in an Organized Health Care Education/Training Program1730944893
  33. Raul Romo-RomoStudent in an Organized Health Care Education/Training Program1538518436
  34. Heidi Ronfeldt, PHDClinical Psychologist1568844579
  35. Anne RonquilloCounselor1689210379
  36. Maria RoodStudent in an Organized Health Care Education/Training Program1952956229
  37. Mary Rooney-Zarri, PTPhysical Therapist1790850808
  38. Jeanelle Roos, SUDRCAddiction (Substance Use Disorder) Counselor1649136128
  39. Beth Roosa, PH.D.Clinical Psychologist1528181989
  40. Hollie Roper, LMFTMarriage & Family Therapist1265008338
  41. Andrea RoqueBehavior Technician1922667674
  42. Annie RoquePediatric Nurse Practitioner1003681727
  43. Janice RoqueDay Training/Habilitation Specialist1205662475
  44. Raymond Roque, MDFamily Medicine Physician1134329774
  45. Bethiah RosaMassage Therapist1386313625
  46. Jennifer RosaLicensed Vocational Nurse1962320796
  47. Alexandra RosalesCommunity Health Worker1407263775
  48. Claudia Rosales, LMFTMarriage & Family Therapist1407009517
  49. Hannah Rosales, MAMarriage & Family Therapist1518436419
  50. Jorge Rosales, RNCommunity Health Registered Nurse1225523145

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.