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 81 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. Camerina Del Rio, ACSWSocial Worker1205604964
  2. Michelle Del Rio, MAStudent in an Organized Health Care Education/Training Program1952232019
  3. Nataly Del Rio BarronCase Manager/Care Coordinator1619500527
  4. Mutya Mithi Del RosarioInternal Medicine Physician1760001911
  5. Benedict Dela CruzBehavior Analyst1023511953
  6. Carl Dela Cruz, CRNACertified Registered Nurse Anesthetist1720635873
  7. John Paul Dela CruzRegistered Nurse1023981842
  8. Leah Dela CruzRehabilitation Practitioner1710107115
  9. Mary Dawn Dela CruzDay Training/Habilitation Specialist1649193137
  10. Ruell Dela PenaCommunity Health Worker1184091464
  11. Alba Delacruz, SRNARegistered Nurse1871483941
  12. Keith DelaneyCase Manager/Care Coordinator1588305007
  13. Kathryn Delaplane, CNMAdvanced Practice Midwife1992142780
  14. Claude Delaubert, CLAUDE DELAUBERTMarriage & Family Therapist1235200379
  15. Lori Delay, LCSWClinical Social Worker1649307703
  16. Ebonye DeleonMental Health Counselor1295439628
  17. Cassandre DeleonecheverriaMental Health Counselor1235449257
  18. Jennifer DelgadoBehavior Technician1467004275
  19. Reynaldo DelgadoDay Training/Habilitation Specialist1538026745
  20. Adonia Delgado HippMarriage & Family Therapist1487484580
  21. Nicholas DeliaMarriage & Family Therapist1366971756
  22. Chanda DelifusCase Manager/Care Coordinator1891146536
  23. Sylvia Delius, MDPediatrics Physician1033297817
  24. Lyndsay Dell, PSYDClinical Psychologist1194354001
  25. Jessica Della Valle, M.D.Surgery Physician1407114077
  26. Cara DellaquilaMarriage & Family Therapist1346383171
  27. Missy Delmar, RD, CDERegistered Dietitian1972645067
  28. Angelika Delos ReyesMassage Therapist1215725759
  29. Sharlene Delos SantosStudent in an Organized Health Care Education/Training Program1649128976
  30. Kristine Noelle DelosoSocial Worker1669975397
  31. Roseanne DelrosarioBehavior Analyst1932602869
  32. Kristen Delsigne, PT, DPTPhysical Therapist1841679990
  33. Darrow Deluca, MDPediatrics Physician1326314816
  34. Michael Deluca, PTPhysical Therapist1043449572
  35. Sian Deluca, OTR/LOccupational Therapist1598426801
  36. Haley DelzerMarriage & Family Therapist1356964233
  37. Hunter Demaray, BCBABehavior Analyst1235620865
  38. Kathryn Demarco, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1558135749
  39. Chelsea DemarteMarriage & Family Therapist1699951251
  40. John Demello, LCSWClinical Social Worker1033227558
  41. Andrew DemersMarriage & Family Therapist1992166466
  42. Tyler DemingPhysical Therapist1336516095
  43. Renee Demirdjian, LMFTMarriage & Family Therapist1265051650
  44. Brittany Demmings, MDPediatrics Physician1730820440
  45. Claire DempseySocial Worker1265227359
  46. Eugene DenardCounselor1568003648
  47. Janai DenardDay Training/Habilitation Specialist1821779380
  48. Denise Denevi, M.S. BCBABehavior Analyst1114310950
  49. Aaron DengStudent in an Organized Health Care Education/Training Program1902665268
  50. Diana Xiao Hua Deng, OMD, L.AC.Acupuncturist1174683866

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.