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 40 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. Ruth Dignadice, RNCommunity Health Registered Nurse1194895110
  2. Alyssa Dilauro, PT, DPTPhysical Medicine & Rehabilitation Physician1861034993
  3. Alison DilbeckBehavior Technician1942038385
  4. John DimareMarriage & Family Therapist1891121075
  5. Caroline Dimatteo, PA-CPhysician Assistant1174058978
  6. Melinda DimeoMental Health Counselor1114028594
  7. Bao Han DinhRehabilitation Practitioner1790562981
  8. Christine Dinh, BEHAVIOR TECHNICIANBehavior Technician1528656477
  9. Justine Dinh, R.N.Community Health Registered Nurse1942481478
  10. Katherine Dinh, BEHAVIOR TECHNICIANBehavior Technician1396333241
  11. Nancy Dinh, DDSDentist1285621508
  12. Nathan Dinh, PA-CPhysician Assistant1639776503
  13. Robert DinhGeneral Practice Dentistry1720108293
  14. Thanhtrang DinhRadiologic Technologist1013454123
  15. Tiffany Dinh, PHARM.DPharmacist1972821239
  16. Tram Dinh, PHARMACISTPharmacist1609143833
  17. Victoria DinhStudent in an Organized Health Care Education/Training Program1215788815
  18. Diemkhanh Dinhluu, O.D.Optometrist1851496095
  19. Iza Marie DinioSocial Worker1356903710
  20. Donald Dinwoodie, M.D.Specialist1114910825
  21. Monik DionisioPediatric Occupational Therapist1598154684
  22. Midori Dirig, PSYDPsychologist1841807401
  23. Jessica Dirks, LCSWClinical Social Worker1245790120
  24. John Disaia, MDPlastic Surgery Physician1689769051
  25. Ferdinand Don Diva, LMFTMarriage & Family Therapist1508265323
  26. Carly DivinoLicensed Vocational Nurse1275122020
  27. Miranda DixAddiction (Substance Use Disorder) Counselor1053874487
  28. Claire DixonBehavior Technician1033798087
  29. Elaiza Jane DizonRegistered Nurse1992664817
  30. Stephanie Djang, PT, MPT, CHTPhysical Therapist1073675435
  31. Farkhondeh Djarrahzadeh, MFT INTERNMental Health Counselor1245515717
  32. Bich Ngoc Do, MSWSocial Worker1245328160
  33. Cathy Do, D.C.Chiropractor1437341591
  34. Dona Do, RNRegistered Nurse1942053038
  35. Dylan Do, D.D.S.Dentist1881035749
  36. Huyen DoCommunity Health Worker1639597834
  37. Jonathan Do, BEHAVIORAL THERAPISTBehavior Technician1568004091
  38. Kent Do, DMDPediatric Dentistry1689733685
  39. Khai Do, M.D.Internal Medicine Physician1396939526
  40. Loc Do, DDSGeneral Practice Dentistry1013929298
  41. Madeline Do, MSWSocial Worker1235417106
  42. Mai Uyen Do, FNP-CRegistered Nurse1447878087
  43. Minh Do, M.D.Nephrology Physician1619964368
  44. Nhan Do, O.D.Optometrist1689805830
  45. Teresa DoDentist1457768442
  46. Thanh Do, LCSWClinical Social Worker1801845235
  47. Victor DoPhysical Therapist1689156838
  48. Vivian DoMarriage & Family Therapist1538624630
  49. Anh DoanPharmacist1629579651
  50. Audrey DoanCounselor1144432394

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.