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 60 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. Sara GreenPsychologist1891379251
  2. Benjamin GreenbergBehavior Technician1306648050
  3. Matthew Greenberger, M.D.Urology Physician1437161668
  4. Aidan GreeneBehavior Technician1427639491
  5. Gregory Greene, SUDCC-IVAddiction (Substance Use Disorder) Counselor1679365308
  6. Jeffrey Greene, D.D.S.Orthodontics and Dentofacial Orthopedics Dentistry1700060936
  7. Kathleen GreeneMarriage & Family Therapist1972016095
  8. Willie Greene, RNRegistered Nurse1841778669
  9. Barbara Greenfield, LCSW BCDClinical Social Worker1790947307
  10. Ted Greenzang, MDPsychiatry Physician1629133780
  11. Jessica GreerCounselor1376781351
  12. Mary GreggAddiction (Substance Use Disorder) Counselor1033954946
  13. Vivian Gregorchuk, OTR/LMental Health Occupational Therapist1568713329
  14. Daniel Gregory, CRNACertified Registered Nurse Anesthetist1629347760
  15. Paul Gregory, DCOrthopedic Chiropractor1902969082
  16. James Gresham, MHP, RASIAddiction (Substance Use Disorder) Counselor1477648707
  17. Christian GreusardLicensed Vocational Nurse1952789836
  18. Dennis Grewal, DOCardiovascular Disease Physician1538556592
  19. Gagandeep Grewal, M.D.Emergency Medicine Physician1285675314
  20. Sukhdeep Grewal, M.D.Psychiatry Physician1376571307
  21. Zulema GrewalSocial Worker1023427754
  22. Anastazia Grey Woodin, MSW, ACSWSocial Worker1235782871
  23. Vanessa GrichineOptometrist1205288370
  24. Brejoni GriffinBehavior Technician1508554874
  25. Cyan GriffinMarriage & Family Therapist1053985820
  26. Alexanderia GriffithBehavior Technician1750963286
  27. Sara GriffithBehavior Technician1649968397
  28. Lilian GriffithsLicensed Vocational Nurse1043518418
  29. Frank Grimaldi, M.A.Marriage & Family Therapist1619058914
  30. Heather Grimaldi, M.S, BCBABehavior Analyst1588933683
  31. Maren Grimm, RPARadiology Practitioner Assistant1679266753
  32. Emerson Groom, RADT1Addiction (Substance Use Disorder) Counselor1619493210
  33. Gerald Grosso, PSYDMarriage & Family Therapist1225051972
  34. Anouk GroverOccupational Therapist1164515904
  35. Cecilia Grover, D.D.S.General Practice Dentistry1215132378
  36. Maleah Grover, M.D.Cardiovascular Disease Physician1265472849
  37. Sheridon GrovesOrthopaedic Surgery Physician1073738712
  38. Adrian GrowCounselor1952745861
  39. Ashley GruelBehavior Technician1922680206
  40. Veronica Gschweng, FNPFamily Nurse Practitioner1972396687
  41. Dahiana Guadarrama, MSWClinical Social Worker1417205691
  42. Kiersten Guan, MDStudent in an Organized Health Care Education/Training Program1104767110
  43. Minyi Guan, RN, PHNRegistered Nurse1346061835
  44. William Guard, D.D.S.Dentist1740292010
  45. Amanda GuerraCommunity Health Worker1013645530
  46. Elizabeth GuerraCase Manager/Care Coordinator1407566433
  47. Jeanette GuerraBehavior Analyst1285417808
  48. Mayra GuerraClinical Social Worker1932622347
  49. Oscar GuerraBehavior Technician1346917150
  50. Wendy GuerraAddiction (Substance Use Disorder) Counselor1841120615

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.