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 68 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. Ariella Cook, MFTIMarriage & Family Therapist1013207539
  2. Christopher CookMarriage & Family Therapist1043155567
  3. Courtney Cook, AU.D.Audiologist1043680788
  4. Gina CookDay Training/Habilitation Specialist1275352262
  5. Hannah CookSocial Worker1346088374
  6. James Cook, M.S., M.F.T.1Mental Health Counselor1346202900
  7. Janet CookPhysical Therapist1588058234
  8. Lillian CookCounselor1508330945
  9. Melanie CookMarriage & Family Therapist1174878284
  10. Riley Cook, RDNRegistered Dietitian1487232054
  11. Tristan CookProfessional Counselor1851773519
  12. Jennifer Cooke, R.N.Registered Nurse1588007025
  13. Rachel Cooke, PSY.DClinical Psychologist1801241740
  14. Rachel Cooks, M.A.Mental Health Counselor1558540971
  15. Christie Cooksey, MDObstetrics & Gynecology Physician1689668386
  16. Angela Coombs Mumuni, M.D.Psychiatry Physician1275910374
  17. Brennah CooneySpeech-Language Pathologist1902415920
  18. Amanda CooperPediatrics Physician1790474773
  19. Bernice CooperBehavior Technician1407514383
  20. Brittany Cooper, PH.D.Clinical Psychologist1306414339
  21. Colette Cooper, DPTPhysical Therapist1982489993
  22. Elizabeth Cooper, R.D., PA-CMedical Physician Assistant1396828539
  23. Jacqueline Cooper, LMFTMarriage & Family Therapist1174181960
  24. Jeffrey CooperCounselor1942490685
  25. Jerry Cooper, RDRegistered Dietitian1366754368
  26. Jill Cooper, L.C.S.W.Clinical Social Worker1205969870
  27. Kenneth CooperCommunity Health Worker1275777898
  28. Lisette CooperCounselor1699380600
  29. Michael CooperCommunity Health Worker1801739834
  30. Nora CooperRehabilitation Practitioner1215567763
  31. Robert Cooper, MDInterventional Cardiology Physician1295813079
  32. Robert Cooper, M.D.Pediatrics Physician1609993625
  33. Sarah Cooper, COMMUNITY WORKERCommunity Health Worker1194092163
  34. Sharon CooperCommunity Health Worker1750045126
  35. Stephen Cooper, MDAnesthesiology Physician1033125810
  36. Yvonne CooperCase Manager/Care Coordinator1154017291
  37. Daniel CoopermanSpecialist1194117598
  38. Robert Cooperstein, M.A., D.C.Chiropractor1598903098
  39. Mary Cope, MFTMental Health Counselor1023157369
  40. Jacqueline CopelandAcute Care Nurse Practitioner1881874600
  41. Usell CopelandMental Health Counselor1598205825
  42. Genevieve CopenhagenPhysician Assistant1558124479
  43. Mark Copithorne, MFTI, M.A.Marriage & Family Therapist1972794287
  44. Celina Coppetti, CBS, CD, P&ICDDoula1134905201
  45. Steven Coppola, MDHospitalist Physician1366520132
  46. Jhonnatan Copto FloresBehavior Technician1902611098
  47. Karla CoraBehavior Technician1023586294
  48. Erin Corbett, RN, CPNPPediatric Nurse Practitioner1144589342
  49. John CorbettRegistered Nurse1316404684
  50. Claudia Cordero, PT, DPTPhysical Therapist1548821853

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.