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 68 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. Crystal HerreraMental Health Counselor1518509918
  2. Diego HerreraBehavior Technician1205605946
  3. Irene HerreraCase Manager/Care Coordinator1841711934
  4. Jaime Herrera, NPNurse Practitioner1720735731
  5. Katrina Herrera, DPTPediatric Physical Therapist1942539119
  6. Marlyn HerreraBehavior Technician1902617079
  7. Nancy HerreraCase Manager/Care Coordinator1699306415
  8. Rafael HerreraPhysician Assistant1720399843
  9. Rebekah HerreraMarriage & Family Therapist1235878331
  10. Yanelis HerreraCommunity Health Worker1427560994
  11. Erin Hersh, OTR/LOccupational Therapist1518244052
  12. Carmen HerveyDay Training/Habilitation Specialist1710630397
  13. Mary Herzog, PHDClinical Psychologist1932280112
  14. Martin HeskyPharmacist1780075580
  15. Sam Hessami, MDUrogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1831167162
  16. Laura Hesser, SLPSpeech-Language Pathologist1245171735
  17. Craig HeydeMental Health Counselor1114254596
  18. Chloe HicksBehavior Technician1356110985
  19. Sheryl HicksBehavior Technician1649334194
  20. Vernae Hicks, MSW, ACSWClinical Social Worker1912311291
  21. Julian HidalgoLicensed Vocational Nurse1447836978
  22. Kristen Higbee, PTPhysical Therapist1861671877
  23. George HigginsBehavior Technician1598533465
  24. Kimberly HigginsAddiction (Substance Use Disorder) Counselor1891447868
  25. Patricia Hikida, M.S., L.M.F.T., J.D.Marriage & Family Therapist1932398864
  26. Julia HilarioSocial Worker1184873838
  27. Lizeth HilarioCase Manager/Care Coordinator1598440646
  28. Raylene HildebrandAddiction (Substance Use Disorder) Counselor1881412708
  29. Ashley Hill, LMFTMarriage & Family Therapist1922496439
  30. Britney HillClinical Social Worker1033873518
  31. Elizabeth HillCounselor1376940585
  32. Jaclyn HillRegistered Nurse1164940532
  33. Mari Hill, RNAdult Psychiatric/Mental Health Registered Nurse1568657187
  34. Richard Hill, M.D.Ophthalmology Physician1255482055
  35. Richard Hill, RAD-1Addiction (Substance Use Disorder) Counselor1124529524
  36. Shannon Hill, RADT IAddiction (Substance Use Disorder) Counselor1629878319
  37. Gwendalyn Marie HillardMarriage & Family Therapist1962972380
  38. Viera Hillis, RNCommunity Health Registered Nurse1689855090
  39. Andrea Hillman, 15815-RACAddiction (Substance Use Disorder) Counselor1740917830
  40. Peter HimberNeurology with Special Qualifications in Child Neurology Physician1396043006
  41. Tyler Hinds, MFTIClinical Psychologist1013116094
  42. Angel Hinojosa RochaBehavior Technician1831942614
  43. Sean Hirota, M.D.Interventional Cardiology Physician1942452271
  44. Kathryn Hisel, LMFTMarriage & Family Therapist1659726198
  45. Ella HishikiSpeech-Language Pathologist1275478513
  46. Alexander HoBehavior Technician1770267858
  47. Andrew Ho, D.O.Family Medicine Physician1932550910
  48. Chen Ho, MDFamily Medicine Physician1710029657
  49. Chi Man HoPsychiatric/Mental Health Nurse Practitioner1538610563
  50. Halam HoRegistered Nurse1770107427

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.