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 69 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. Korda Cordes, MFTIMarriage & Family Therapist1740626712
  2. Abigail CordovaMental Health Counselor1881065860
  3. Karla CordovaSpecialist1992120992
  4. Kimberly CordovaBehavior Technician1780489393
  5. Lesley CordovaBehavior Technician1558932921
  6. Mary CordovaAddiction (Substance Use Disorder) Counselor1619167780
  7. Rex CordovaRegistered Dietitian1386402626
  8. Yasmin CordovaPeer Specialist1184403024
  9. Ernesto Cordova-BecerraSocial Worker1962237651
  10. Maritza CoreaMental Health Counselor1033255393
  11. Daniel CoreyHematology (Internal Medicine) Physician1457518318
  12. Ryan CornStudent in an Organized Health Care Education/Training Program1982531208
  13. Esmeralda CornejoBehavior Technician1659933745
  14. John CornejoDay Training/Habilitation Specialist1629743414
  15. Laeesha Cornejo, MDStudent in an Organized Health Care Education/Training Program1295484327
  16. Melissa CornishPsychologist1881002681
  17. Gillian Cornwall, RNRegistered Nurse1467295790
  18. Valeria CoronaSocial Worker1063165322
  19. Vanesa CoronaCommunity Health Worker1942058359
  20. Verenice CoronaStudent in an Organized Health Care Education/Training Program1649993627
  21. Alenah Corona-DesilvaRehabilitation Practitioner1710580378
  22. Cynthia CoronadoBehavior Analyst1780167536
  23. Elsa Coronado, RNRegistered Nurse1194923508
  24. Maria CoronadoDay Training/Habilitation Specialist1376425769
  25. Louie CorpusRegistered Nurse1982295770
  26. Chona CorpuzNurse's Aide1720904337
  27. Nancy CorralBehavior Technician1205323128
  28. Mayra Corral GonzalezClinical Social Worker1427518968
  29. Edith CorralesStudent in an Organized Health Care Education/Training Program1194449165
  30. Serena Corrales, PA-CPhysician Assistant1790596187
  31. Gianna CorreaDay Training/Habilitation Specialist1730059916
  32. Veronica Correa Perin, PH.D.Clinical Psychologist1386958049
  33. Katie CorriganStudent in an Organized Health Care Education/Training Program1619868312
  34. Alana CorrinDoula1174337109
  35. Alexandra Corrin, AMFTMarriage & Family Therapist1528894789
  36. Elizabeth Corris, MSW, ASWClinical Social Worker1982850640
  37. Jacques-Emmanuel Corriveau, M.D.Pediatrics Physician1225344500
  38. Barbara Corsbie, REGISTERED NURSERegistered Nurse1427464387
  39. Montserrat Corsino, LAC.Acupuncturist1508239302
  40. Rhea Corson-Higgs, ASWMental Health Counselor1356111066
  41. Gaea CortesStudent in an Organized Health Care Education/Training Program1700450442
  42. Jaime Cortes, MDFamily Medicine Physician1265587778
  43. Kyrah CortesCommunity Health Worker1700634177
  44. Lesley CortesSchool Counselor1801714431
  45. Salvador CortesRehabilitation Practitioner1194561977
  46. Zahira Cortes, PHARM.D.Pharmacist1467838946
  47. Ana Cortes SanchezCase Manager/Care Coordinator1093272825
  48. Karen Cortese-Duenas, RNPsychiatric/Mental Health Registered Nurse1417155136
  49. Denise CortezMental Health Counselor1770781668
  50. Lakan Cortez, MDStudent in an Organized Health Care Education/Training Program1235980244

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.