NPPES file of Aug 9, 2026

Doctors and health care providers in Berkeley, CA

4,898 individual NPPES records list a practice address in Berkeley, 36th of 812 California cities. The largest group is marriage & family therapist: 613, 13% of the city's records, against 6% across California. Page 65 of 98.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Berkeley in California

  • Rank in California36th of 812 cities by records
  • Share of the state0.5% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups27.4% of all records

Compared with California as a whole, Berkeley has 3.3× the state's share of clinical psychologist records and 0.09× its share of behavior technician records.

Providers in Berkeley, alphabetically

  1. Melissa OlazabalAddiction (Substance Use Disorder) Counselor1558515916
  2. Richard Olesen, DDSDentist1639360555
  3. Robin OlesenAddiction (Substance Use Disorder) Counselor1982039269
  4. Ana Olivarez-Levinson, LCSWSocial Worker1245264613
  5. Gina Oliveira, M.S.P.TPhysical Therapist1356485569
  6. Irina Olmezova, D.D.S.Prosthodontics1932265923
  7. Laurel Olslund, N.P.Adult Health Nurse Practitioner1023130622
  8. Andrea Olson, M.S. CCC-SLPAddiction (Substance Use Disorder) Counselor1225377310
  9. James Olson, DDSGeneral Practice Dentistry1851415160
  10. Evelyn Oluoha, DNP, FNPFamily Nurse Practitioner1477393098
  11. Julie Omelveny, MDInternal Medicine Physician1861579609
  12. Tocosa Onea, L.C.S.W.Clinical Social Worker1225063134
  13. Bethany OneillOccupational Therapist1073724746
  14. Rena Oppenheimer, LCSWClinical Social Worker1871282178
  15. Mia OransStudent in an Organized Health Care Education/Training Program1538958384
  16. Jane OrechwaMental Health Counselor1619100310
  17. Taylor Oreilly, DDSGeneral Practice Dentistry1043042344
  18. Deborah Orel-Bixler, O.D., PH.D.Pediatric Optometrist1114068798
  19. Arielle Orenstein, MAStudent in an Organized Health Care Education/Training Program1831865864
  20. Shayna Orfus, NDNaturopath1366855652
  21. Tanya OrgillOccupational Therapist1194274795
  22. Peggy Orlin, MFTMental Health Counselor1548219033
  23. Annice Ormiston, PSYDClinical Psychologist1942588181
  24. Danica OronosStudent in an Organized Health Care Education/Training Program1861288763
  25. Irina OrosStudent in an Organized Health Care Education/Training Program1073398152
  26. Monica Louise Orosa, PT,DPTPhysical Therapist1811765662
  27. Irene Orozco, NPNurse Practitioner1114553419
  28. Isela Orozco, ODOptometrist1720977127
  29. Renee OrozcoCounselor1417159617
  30. Veronica Orozco, PH.D.Counseling Psychologist1700136157
  31. Brian Ortega, PHARMDPharmacist1275143851
  32. Alietti Ortega-Mendoza, PPS CREDENTIALSchool Counselor1972397271
  33. Felicia Ortiz, JDMarriage & Family Therapist1346470077
  34. Pearl OrtizRehabilitation Practitioner1629429790
  35. Jessica Ortiz - MelendezHealth Educator1073285458
  36. Kevin OrzechPsychologist1336385749
  37. Jessica Osmond, LCSWClinical Social Worker1679822910
  38. Francine Ostrem, PH.D., MFTMarriage & Family Therapist1508103201
  39. Deborah Ostrow, MFTMarriage & Family Therapist1063564300
  40. Andrew Osugi, M.D.Emergency Medicine Physician1134307382
  41. Francesca OsunaSocial Worker1356690978
  42. Roger Ota, DDSDentist1205948718
  43. Adam Ottavi, LMTMental Health Counselor1366893026
  44. Emily OverstreetClinical Psychologist1922518588
  45. Kristin Overton, P.T.Orthopedic Physical Therapist1427509371
  46. Sascha OwensBehavior Technician1447891841
  47. Natasha OxenburghStudent in an Organized Health Care Education/Training Program1598318883
  48. Julio Ozores, M.D.Psychiatry Physician1639184013
  49. Larry Ozowara, MDPsychiatry Physician1295046407
  50. Xochitl Pablos-VelezMedical Physician Assistant1891427845

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

Berkeley, California appears in the CMS National Plan and Provider Enumeration System with 4,898 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 Berkeley - 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 Berkeley 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 Berkeley is weighted toward Marriage & Family Therapist (613 clinicians, followed by Student in an Organized Health Care Education/Training Program with 443 and Clinical Social Worker with 287). 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, Berkeley reports roughly 12.6 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, Behavior Analyst is the most prominent one with no provider currently listing a Berkeley practice address, a coverage gap Berkeley patients typically fill by traveling to a larger nearby hub.

For Berkeley 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 Berkeley, CA?

There are 4,898 registered healthcare providers in Berkeley, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Berkeley?

The most common specialties in Berkeley are Marriage & Family Therapist, Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Addiction (Substance Use Disorder) Counselor, Clinical Psychologist. Marriage & Family Therapist has the most providers with 613.

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.