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 171 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. Vivian Walker, BTBehavior Technician1487173530
  2. Karen WallaceSpeech-Language Pathologist1417886771
  3. Theresa WallaceClinical Social Worker1619370798
  4. Al WallerMental Health Counselor1255720611
  5. Brittani WallerClinical Social Worker1386099919
  6. Mariah WallerCase Manager/Care Coordinator1275378929
  7. Tiara WallerBehavior Technician1497338222
  8. Kimie WallingBehavior Technician1588526966
  9. Diana WalshSpeech-Language Pathologist1295672061
  10. Charistella Walter, NPNurse Practitioner1598497323
  11. Linda WalterCase Manager/Care Coordinator1700067758
  12. Marty Walter, LVNLicensed Vocational Nurse1104254994
  13. Kayela WaltersAddiction (Substance Use Disorder) Counselor1104657980
  14. Rachel WaltersBehavior Technician1528641347
  15. Bridget WaltonBehavior Technician1184395634
  16. Tiffany Wambua, BCBABehavior Analyst1760833081
  17. Chia Ying Wang, MDInternal Medicine Physician1275593170
  18. Ellice Wang, MDStudent in an Organized Health Care Education/Training Program1386223899
  19. Hannah WangSpeech-Language Pathologist1649113747
  20. James Wang, DDSGeneral Practice Dentistry1003022880
  21. Michelle WangStudent in an Organized Health Care Education/Training Program1215783527
  22. Roger Wang, M.D.Adult Medicine Physician1982602579
  23. Vivian Wang, PTAPhysical Therapy Assistant1205440096
  24. Zhuming WangBehavior Technician1043978729
  25. Noah WangaiAddiction (Substance Use Disorder) Counselor1023598638
  26. Guy WangensteenCounselor1225308547
  27. David Ward, D.D.SGeneral Practice Dentistry1073631776
  28. Jessica WardMental Health Counselor1568617975
  29. Kellie WardMental Health Counselor1689263766
  30. Priscilla Ward, LCSWSocial Worker1144484593
  31. Damaris Wardle, ABATBehavior Technician1194288043
  32. Darshon WareBehavior Technician1164109542
  33. Irene WarkentineCase Manager/Care Coordinator1326446139
  34. Deborah Warren, CCC-SLPSpeech-Language Pathologist1518269968
  35. Sonte WarrenRehabilitation Practitioner1023593357
  36. Randi Wasano, M.A., CCC-SLPSpeech-Language Pathologist1790008183
  37. Nadia WasefAddiction (Substance Use Disorder) Counselor1528527108
  38. James WashingtonBehavior Technician1922877661
  39. Kiana WashingtonCounselor1659782225
  40. Sydney WashingtonSocial Worker1376058636
  41. Innocent WasikeCritical Care Medicine Registered Nurse1417717307
  42. Denise Wasserman, MSWProfessional Counselor1790881464
  43. Mitchell Watanabe, MDFamily Medicine Physician1528049996
  44. Kristine Waterlander, NPFamily Nurse Practitioner1770974198
  45. Christiane Waters, N.P.Family Nurse Practitioner1720627912
  46. Sheran Waters-Lanchester, MA,. AMFTMarriage & Family Therapist1831406362
  47. Felicia WatkinsBehavior Technician1477035889
  48. Kimberly WatkinsClinical Social Worker1730677097
  49. Ruth Watne, MSW LCSWClinical Social Worker1649371329
  50. Camille WatsonStudent in an Organized Health Care Education/Training Program1235996372

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.