NPPES file of Aug 9, 2026

Doctors and health care providers in Anaheim, CA

9,018 individual NPPES records list a practice address in Anaheim, 17th of 812 California cities. The largest group is behavior technician: 2,472, 27% of the city's records, against 18% across California. Page 119 of 181.

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

Anaheim in California

  • Rank in California17th of 812 cities by records
  • Share of the state0.9% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups35.3% of all records

Compared with California as a whole, Anaheim has 12.5× the state's share of other technician records and 0.51× its share of case manager/care coordinator records.

Providers in Anaheim, alphabetically

  1. Hobie Oconnor, BOCPOProsthetist1669912796
  2. Sarah OconnorSpeech-Language Pathologist1811504962
  3. Tonya Octave, LCSWClinical Social Worker1518191253
  4. Hiro OdaAthletic Trainer1912558842
  5. Linda OdehStudent in an Organized Health Care Education/Training Program1710771431
  6. Hope OdikagboBehavior Technician1871213124
  7. Cheuw Oey, D.O.Anesthesiology Physician1609930866
  8. Roberta OffuttAddiction (Substance Use Disorder) Counselor1396091385
  9. John Ogai, MDPain Medicine (Anesthesiology) Physician1568563690
  10. Josephine Ogawa, LMFTMarriage & Family Therapist1992878953
  11. Timothy Ogawa, MDBody Imaging Physician1255489241
  12. Margaret Oghide, RBTBehavior Technician1033008834
  13. Diane OhBehavior Technician1992279343
  14. Isaac Oh, PHARMDPharmacist1033282157
  15. Jooyong Oh, L.ACAcupuncturist1487979100
  16. Judy OhMarriage & Family Therapist1144959867
  17. Katie OhBehavior Technician1578115283
  18. Kyu Oh, MDVascular Surgery Physician1346309937
  19. Loren OhCase Manager/Care Coordinator1912613548
  20. Meesuk OhAcupuncturist1518416262
  21. Megan OhStudent in an Organized Health Care Education/Training Program1932909231
  22. Roraine OhMarriage & Family Therapist1114653490
  23. Sammy OhBehavior Technician1083433619
  24. Young Oh, MDPlastic Surgery within the Head & Neck (Otolaryngology) Physician1679621585
  25. Sako Ohanesian, D.D.S., M.A.G.D.Oral and Maxillofacial Surgery (Dentist)1932548591
  26. Christine Ohikhuare, M.D.Internal Medicine Physician1841524675
  27. Erica OhyeClinical Social Worker1760871974
  28. Andrew OjedaBehavior Technician1043092950
  29. Laura Ojeda, BCBABehavior Analyst1215496740
  30. Olufunke OjuriRegistered Respiratory Therapist1881176840
  31. Theresa Okamoto, REGISTERED NURSESchool Registered Nurse1083453120
  32. David Okawachi, D.D.S.Pediatric Dentistry1346390507
  33. Denacia OkoroDay Training/Habilitation Specialist1851872170
  34. Tinyan Okunbo, MDPediatrics Physician1730435280
  35. Bridget Okwuosa, DDSDentist1295402600
  36. Oyinlola Olabode-GeorgeBehavior Technician1720795701
  37. Jennifer OlaguezBehavior Technician1285343608
  38. Angie OlalloBehavior Technician1447134887
  39. George Leo Olarte, NP-CNurse Practitioner1497242762
  40. Matthew Oldenburg, B.S.Mental Health Counselor1740309855
  41. Michael Olerich, MDEndocrinology, Diabetes & Metabolism Physician1013084961
  42. Ileana OlivaresSpeech-Language Assistant1053028209
  43. Paola OlivaresBehavior Technician1750849030
  44. Dayja OliverBehavior Technician1104587534
  45. Gerardo OliveraCase Manager/Care Coordinator1174798961
  46. Leticia Oliveros, MDPediatrics Physician1912087156
  47. Sabrina OlivieriCommunity Health Worker1366188195
  48. Adrian OlleroOther Technician1205314945
  49. Abigail OlmedaOther Technician1407402217
  50. Ricardo OlmedaBehavior Technician1679330351

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

Anaheim, California appears in the CMS National Plan and Provider Enumeration System with 9,018 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 Anaheim - 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 Anaheim 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 Anaheim is weighted toward Behavior Technician (2,472 clinicians, followed by Mental Health Counselor with 364 and Pharmacist with 344). 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, Anaheim reports roughly 23.1 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.

For Anaheim 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 Anaheim, CA?

There are 9,018 registered healthcare providers in Anaheim, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Anaheim?

The most common specialties in Anaheim are Behavior Technician, Mental Health Counselor, Pharmacist, Marriage & Family Therapist, Other Technician. Behavior Technician has the most providers with 2,472.

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.