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 134 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. Joseph Reddington, PTPhysical Therapist1861692915
  2. Sabrina RedferinBehavior Technician1992263933
  3. Cheryl RedfernOccupational Therapist1023208436
  4. Aubrey Redinger, AMFT, APCC, PMH-CMarriage & Family Therapist1427918390
  5. Megan Reece, M.S., CCC-SLPSpeech-Language Pathologist1043557937
  6. Howard ReedDay Training/Habilitation Specialist1174164172
  7. Kelsey ReedAddiction (Substance Use Disorder) Counselor1912677584
  8. Norma ReedCommunity Health Worker1215782982
  9. America ReederBehavior Technician1861230898
  10. Carrie ReeseMental Health Counselor1174868590
  11. Stephanie ReeseMental Health Counselor1710155999
  12. Pamela Reeves, MA, LMFTMarriage & Family Therapist1457534885
  13. Veronica RegaladoMarriage & Family Therapist1487149225
  14. Lauren ReganMarriage & Family Therapist1053073551
  15. Heidi Regenass, M.D.Plastic Surgery Physician1225258965
  16. Katherine RegennitterBehavior Technician1619559010
  17. Shalom ReguerinSpeech-Language Assistant1316786767
  18. Daniel Reich, MDObstetrics & Gynecology Physician1992794176
  19. Norman Reichwald, PSYDPsychologist1043313620
  20. John Reid, P.A.Medical Physician Assistant1457607558
  21. Carole ReillyNurse Practitioner1730910167
  22. Melissa Reinelt, ACSWClinical Social Worker1568302156
  23. Victoria ReinhartBehavior Technician1841892932
  24. Shelby ReisenderRehabilitation Practitioner1689593790
  25. Isela Reiter-Edens, MSWClinical Social Worker1205507225
  26. Paul Reith, MAMarriage & Family Therapist1467220814
  27. Yi RenBehavior Technician1598586224
  28. Teri RenaudMental Health Counselor1528381712
  29. Azalea Rendon, NONEBehavior Technician1285219048
  30. Christine Rendon, LCSWClinical Social Worker1245681642
  31. Wendy Rendon AlfaroBehavior Technician1710826250
  32. Sharron Renfroe, MFTMarriage & Family Therapist1144343583
  33. Leslie Rennick, MFTMarriage & Family Therapist1538283452
  34. Lexy RensMental Health Counselor1578446381
  35. Blanca Renteria, ABATBehavior Technician1578129011
  36. Dafne RenteriaBehavior Technician1659149698
  37. Kasey Renteria, LVNLicensed Vocational Nurse1790955540
  38. Luke RenteriaBehavior Technician1255203501
  39. Miriam RenteriaMental Health Counselor1558702654
  40. Teresa RenteriaMental Health Counselor1194826222
  41. Joseph Renzi, DDSPediatric Dentistry1912947003
  42. Griselda Resendiz, B.S.Case Manager/Care Coordinator1679970552
  43. Ivette ResendizOccupational Therapist1154108686
  44. Stephanie Resendiz, LCSWClinical Social Worker1003584517
  45. Oliver ResslerBehavior Technician1326936493
  46. Nazly Restrepo-MartinezMental Health Counselor1942144076
  47. Sydney RetamarRehabilitation Practitioner1487286696
  48. Jemmy Reuter, PA-CPhysician Assistant1982874152
  49. Bertha Reveles-VillalobosDay Training/Habilitation Specialist1386415255
  50. Felicia ReversSocial Worker1669697512

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.