NPPES file of Aug 9, 2026

Doctors and health care providers in Santa Ana, CA

8,904 individual NPPES records list a practice address in Santa Ana, 18th of 812 California cities. The largest group is behavior technician: 1,625, 18% of the city's records, against 18% across California. Page 81 of 179.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Santa Ana

  1. Behavior Technician1,625
  2. Mental Health Counselor684
  3. Marriage & Family Therapist678
  4. Clinical Social Worker433
  5. Addiction (Substance Use Disorder) Counselor407
  6. Registered Nurse281
  7. Counselor247
  8. Social Worker216

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Santa Ana in California

  • Rank in California18th of 812 cities by records
  • Share of the state0.9% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups33.5% of all records

Compared with California as a whole, Santa Ana has 12.5× the state's share of community health registered nurse records and 0.50× its share of student in an organized health care education/training program records.

Providers in Santa Ana, alphabetically

  1. Gwyneth KingmanDay Training/Habilitation Specialist1861389116
  2. Penny Kingston, CADC IIAddiction (Substance Use Disorder) Counselor1396181947
  3. Danica KinneBehavior Technician1255917522
  4. Alison KinneyCounselor1003216664
  5. Karina KinneyBehavior Technician1013895549
  6. Rachael KinoshitaClinical Social Worker1750002960
  7. Rory KinsellaBehavior Technician1326896952
  8. Jennifer KippeMental Health Counselor1144745423
  9. Samuel Kipper, M.D.Nuclear Radiology Physician1265498836
  10. Christine KirazliDay Training/Habilitation Specialist1225507536
  11. Gregory Kirkorowicz, MDNeurology Physical Therapist1265599708
  12. Mark Kirsch, MPTPhysical Therapist1154428829
  13. Jacob KirschnerBehavior Technician1023578770
  14. Erika Kiseloff, ABATBehavior Technician1780147637
  15. Natsumi Kitami, RBTBehavior Technician1982139960
  16. Tiare KitionaBehavior Technician1104341957
  17. Alysa KlassenPsychologist1982257788
  18. Margreta Klassen, PHDClinical Psychologist1255455176
  19. Earl Klebe, LCSWClinical Social Worker1972812923
  20. Marlowe Klein, NPNurse Practitioner1013766427
  21. Patricia Klein, RNRegistered Nurse1285938365
  22. Valerie KleinClinical Social Worker1487226429
  23. Katerina KleinovaDentist1578751434
  24. Lynn Kleist, LCSWClinical Social Worker1013016856
  25. Joseph Klemek, M.D.Orthopaedic Surgery Physician1093722829
  26. Taylor KlingamanDay Training/Habilitation Specialist1578307856
  27. Eric KmetzBehavior Technician1134682925
  28. Chad KneubuhlPeer Specialist1669836250
  29. Jenna KnightBehavior Technician1720664949
  30. John KnightAddiction (Substance Use Disorder) Counselor1326935503
  31. Jessenia Knowles, MDFamily Medicine Physician1619553542
  32. Grace KoClinical Social Worker1851549323
  33. Joe Ko, DDSDentist1053464586
  34. John Ko, MABehavior Technician1194506055
  35. Jounghwa KoAdult Health Nurse Practitioner1881767895
  36. Michael Ko, DPTOrthopedic Physical Therapist1093961435
  37. Na-Hyeon Ko, PT, PHDPediatric Physical Therapist1174833313
  38. Melissa KobaAddiction (Substance Use Disorder) Counselor1386522266
  39. Kailyn KocherBehavior Technician1861024986
  40. Susan Kodaira, P.T.Pediatric Physical Therapist1457302531
  41. Michelle KoehlerClinical Psychologist1831508761
  42. Karl Koerner, SLPSpeech-Language Pathologist1508706417
  43. Lydia Koernianingsih, DDSDentist1083817423
  44. Diana Kogan, LMFTMarriage & Family Therapist1164754156
  45. Jane Koh, N.P.Family Nurse Practitioner1750831863
  46. Philip Koh, D.D.SGeneral Practice Dentistry1700859998
  47. Nathan Kok, RNRegistered Nurse1306546379
  48. Rebecca Kolb, NURSE PRACTITIONERPsychiatric/Mental Health Nurse Practitioner1710263660
  49. Sara Kolsin, LCSWClinical Social Worker1619517562
  50. Vladislav KondakovBehavior Technician1508715251

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

Santa Ana, California appears in the CMS National Plan and Provider Enumeration System with 8,904 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 Santa Ana - 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 Santa Ana 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 Santa Ana is weighted toward Behavior Technician (1,625 clinicians, followed by Mental Health Counselor with 684 and Marriage & Family Therapist with 678). 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, Santa Ana reports roughly 22.9 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, Internal Medicine Physician is the most prominent one with no provider currently listing a Santa Ana practice address, a coverage gap Santa Ana patients typically fill by traveling to a larger nearby hub.

For Santa Ana 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 Santa Ana, CA?

There are 8,904 registered healthcare providers in Santa Ana, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Santa Ana?

The most common specialties in Santa Ana are Behavior Technician, Mental Health Counselor, Marriage & Family Therapist, Clinical Social Worker, Addiction (Substance Use Disorder) Counselor. Behavior Technician has the most providers with 1,625.

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.