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 141 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. Grigory Rozenovich, D.D.S.General Practice Dentistry1093891764
  2. Judith RoznosMental Health Counselor1730219270
  3. Isela Ruacho, REGISTERED NURSERegistered Nurse1841976867
  4. Janette RuanoClinical Social Worker1407335060
  5. Krystle RuanoBehavior Technician1255036356
  6. Rebecca RuanoBehavior Technician1942879770
  7. Karla Ruano-RamirezBehavior Technician1043141393
  8. Marcella RubalcavaBehavior Analyst1740863497
  9. Carolina RubioBehavior Analyst1649007618
  10. Sergio RubioRehabilitation Practitioner1831685734
  11. Vanessa RubioClinical Social Worker1477339604
  12. Charles Rudner, M.D.Orthopaedic Surgery Physician1720055734
  13. Guadalupe Ruelas, NPFamily Nurse Practitioner1811439565
  14. Isabella RuelasBehavior Technician1033965512
  15. Samantha RuelasBehavior Technician1255029385
  16. Josiah RueterBehavior Technician1679257752
  17. Joy Rufener, LMHC, LPCCMental Health Counselor1770093346
  18. Jobita Rufino-Garcia, R.N. , PHN.Community Health Registered Nurse1417029190
  19. Nikole RugnettaStudent in an Organized Health Care Education/Training Program1114771631
  20. Laura RuhlCommunity Health Worker1013156702
  21. Christopher RuizRehabilitation Practitioner1164007522
  22. Evelin RuizCommunity Health Worker1154257343
  23. Jennifer Ruiz, RNRegistered Nurse1710597117
  24. Lizette RuizMarriage & Family Therapist1861168239
  25. Maria Del Refugio Ruiz, LPTLicensed Psychiatric Technician1003905167
  26. Michael RuizMental Health Counselor1588838908
  27. Nadine RuizDay Training/Habilitation Specialist1740875947
  28. Oscar Ruiz, BAMental Health Counselor1033490370
  29. Richard RuizSchool Social Worker1093234445
  30. Silvia RuizMental Health Counselor1770127466
  31. Stephanie RuizMarriage & Family Therapist1316767460
  32. Vanessa RuizMental Health Counselor1467246082
  33. Yazmin Alejandra Ruiz RuizMental Health Counselor1740927185
  34. Tracy Ruiz-LopezDay Training/Habilitation Specialist1043020266
  35. Maria Ruiz-Merroth, M.EDCounselor1639367519
  36. Jose Ruiz-Ortega, PA-CPhysician Assistant1871851519
  37. Cristina Rupp, MSWMental Health Counselor1689766594
  38. Shiiann RuppelBehavior Technician1639066723
  39. Angeline RussellMental Health Counselor1134940836
  40. Jennifer RussellAddiction (Substance Use Disorder) Counselor1659957595
  41. Kimberly Russell, OTPediatric Occupational Therapist1124078183
  42. Melissa RussellBehavior Technician1912489329
  43. Robert Russell, MFTMarriage & Family Therapist1730268236
  44. Chloe RutledgeBehavior Technician1780499947
  45. Jessica RuvalcabaFamily Nurse Practitioner1346163805
  46. Jose RuvalcabaBehavior Technician1699572255
  47. Margarita RuvalcabaMarriage & Family Therapist1861171597
  48. Stephanie RuvalcabaBehavior Technician1174082895
  49. Juste RuzelyteDentist1952882573
  50. Brittney RyanSpeech-Language Pathologist1275474231

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.