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 120 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. Angelica Ortega-VanegasBehavior Technician1477398709
  2. Angelica Ortiz, BEHAVIOR TECHNICIANBehavior Technician1043952906
  3. Brenda OrtizAssistant Behavior Analyst1023526159
  4. Brenda OrtizClinical Social Worker1427629757
  5. Briana OrtizCommunity Health Worker1386410256
  6. Cecilia OrtizBehavior Technician1801586722
  7. Enrique Ortiz, ACSW, PPSCSchool Social Worker1942560057
  8. Erika OrtizMarriage & Family Therapist1912463514
  9. Giovanni OrtizMental Health Counselor1174342513
  10. Giselle OrtizMarriage & Family Therapist1477134708
  11. Isabel OrtizMental Health Counselor1780319889
  12. Jessica OrtizCommunity Health Worker1548944127
  13. Mayra OrtizMental Health Counselor1720470503
  14. Megan Ortiz, AMFT, APCCMarriage & Family Therapist1508435819
  15. Ronald Ortiz, M.D.Family Medicine Physician1235205774
  16. Samuel OrtizAddiction (Substance Use Disorder) Counselor1790048296
  17. Suzanne OrtizBehavior Technician1245106350
  18. Yeni OrtizBehavior Technician1457819187
  19. Julissa Ortiz PerezBehavior Technician1972468478
  20. Yvonne Ortiz-HaneyCommunity Health Worker1801057419
  21. Ailene Ortiz-MarmolejoClinical Social Worker1568079754
  22. Cynthia Ortiz-RodriguezBehavior Analyst1043873219
  23. Stefany OrzuaBehavior Technician1538759857
  24. Kazuko OsadaPeer Specialist1548969660
  25. Charles Osborn, MDSpecialist1619960077
  26. Hayley OsborneBehavior Technician1750145371
  27. Jose Osoria, DDSGeneral Practice Dentistry1205943271
  28. Diana OsorioCommunity Health Worker1568277937
  29. Francine Osorio, RNRegistered Nurse1487191052
  30. Ruth OsornioBehavior Technician1972142230
  31. Esteban Ospina, RBTOther Technician1992163489
  32. Alexandria OsunaDental Assistant1598597197
  33. Leslie Osuna, LCSWClinical Social Worker1275187171
  34. Vivianmary Osunwoke, DNP/FNP, MHA, BSN,RNFamily Nurse Practitioner1003652348
  35. Ola OtuyemiBehavior Technician1659108306
  36. Hanna OuchBehavior Technician1740053578
  37. Lourdes OvalleCounselor1366835175
  38. Jamie Oversby, BTBehavior Technician1366966301
  39. Beya OviedoSpeech-Language Assistant1205404746
  40. Audrienne OwBehavior Technician1538813068
  41. Marsha Owen, M.A., O.T.R./LPediatric Occupational Therapist1801848858
  42. Angela OwensBehavior Technician1730073883
  43. Kristen Owens, OTR/LOccupational Therapist1073902243
  44. Moniquetta Owens, NP-CFamily Nurse Practitioner1295119717
  45. Samantha OwensBehavior Technician1932718194
  46. William OwensBehavior Technician1174098164
  47. Diana Owrey, MPTPhysical Therapist1932622016
  48. Chika OwuamaCommunity Health Worker1760621957
  49. Noelle OwusuBehavior Technician1770114977
  50. Melanie Ozgur, ODOptometrist1922836154

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.