NPPES file of Aug 9, 2026

Doctors and health care providers in San Antonio, TX

37,749 individual NPPES records list a practice address in San Antonio, 2nd of 694 Texas cities. The largest group is behavior technician: 2,756, 7% of the city's records, against 6% across Texas. Page 112 of 755.

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 San Antonio

  1. Behavior Technician2,756
  2. Students in training1,911
  3. Professional Counselor1,820
  4. Licensed Vocational Nurse1,376
  5. Pharmacist1,375
  6. Family Nurse Practitioner1,362
  7. Registered Nurse1,324
  8. Speech-Language Pathologist1,190

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

San Antonio in Texas

  • Rank in Texas2nd of 694 cities by records
  • Share of the state8.8% of Texas's records
  • Specialties present25 or more taxonomy codes
  • Top three groups17.2% of all records
  • Behavior Technician rank1st of the 10 Texas cities with the most

Compared with Texas as a whole, San Antonio has 4.8× the state's share of electroneurodiagnostic specialist/technologist records and 0.73× its share of family nurse practitioner records.

Providers in San Antonio, alphabetically

  1. Luis Castro, MD, MPHStudent in an Organized Health Care Education/Training Program1992557805
  2. Maia CastroBehavior Technician1073451761
  3. Maribel Castro, MDStudent in an Organized Health Care Education/Training Program1437903887
  4. Marisa Castro, MT-BCMusic Therapist1851057236
  5. Marissa Castro, PTPediatric Physical Therapist1235175647
  6. Michele Castro, LPCMental Health Counselor1417585290
  7. Nicholas CastroElectroneurodiagnostic Specialist/Technologist1487165106
  8. Olivia Castro, MDPediatrics Physician1811296569
  9. Paola CastroLicensed Vocational Nurse1619441292
  10. Robert Castro, DDSGeneral Practice Dentistry1164862934
  11. Samantha CastroBehavior Technician1568166510
  12. Selene CastroHome Health Aide1740808245
  13. Sharon CastroSurgical Assistant1770823437
  14. Valerie Castro, LPC ASSOCIATEProfessional Counselor1194601120
  15. Jose Castro AlonzoStudent in an Organized Health Care Education/Training Program1295479954
  16. Yunuen Castro LopezDental Hygienist1376296798
  17. Robert Castro Natal, DNP, APRN, FNP-BCFamily Nurse Practitioner1376244988
  18. Norys Castro Pena, M.D.Infectious Disease Physician1265797690
  19. Rebecca Castro Rios, FNP-CFamily Nurse Practitioner1881163087
  20. Dienne Castruita, SLPSpeech-Language Pathologist1952018665
  21. Megan Catalani, INHCHealth & Wellness Coach1285306225
  22. James CatalanoStudent in an Organized Health Care Education/Training Program1346162187
  23. Neil Cataline, IDCIndependent Duty Corpsman1275032724
  24. Godwin Catalla, RPHPharmacist1477158400
  25. Matthew Cates, DO, MPHInternal Medicine Physician1295189330
  26. George Cathey, DDSGeneral Practice Dentistry1780740019
  27. Steven Cathey, MDPsychiatry Physician1619084282
  28. Deborah Catland, NNPCritical Care Neonatal Nurse Practitioner1932133972
  29. Stephen Catlett, CCP, CSAPerfusionist1447530118
  30. Christopher Cato, D.C.Rehabilitation Chiropractor1881806503
  31. Taylor CattarinStudent in an Organized Health Care Education/Training Program1275416430
  32. Jennifer Caudill, PA-CPhysician Assistant1962879577
  33. Sarah CaulderBehavior Technician1598635203
  34. Christopher Caulfield, MDFamily Medicine Physician1790710051
  35. Katy Caulfield, AGPCNPNurse Practitioner1174212427
  36. Marlin Causey, M.D.Vascular Surgery Physician1023214848
  37. David Cauthon, D.P.M.Foot & Ankle Surgery Podiatrist1558622910
  38. Kimberly Cauthon, PHARMDPharmacist1558574921
  39. Corrie Cavada, SLP MS-CCCSpeech-Language Pathologist1063729473
  40. Matheus Cavalcante FrancoGastroenterology Physician1790231496
  41. Joseph Cavallaro, DOCardiovascular Disease Physician1548753031
  42. Kaci CavallaroOccupational Therapist1902786197
  43. Eric Cavanagh, PACPhysician Assistant1235215435
  44. Ingrid Cavanaugh, PA-CMedical Physician Assistant1023209483
  45. James Cavanaugh, PAMedical Physician Assistant1558425892
  46. Jeffrey Cavanaugh, C.C.P.Perfusionist1265703474
  47. Jordan Cavayero, DMDOrthodontics and Dentofacial Orthopedics Dentistry1508442062
  48. Abel Cavazos, OTR,CHTOccupational Therapist1942243498
  49. Adriana Cavazos, LCSWClinical Social Worker1285091108
  50. Alberto Cavazos, O.T.R.Occupational Therapist1568780450

The largest Texas cities

  1. Houston61,221
  2. Dallas36,304
  3. Austin26,585
  4. Fort Worth15,511
  5. El Paso11,091

All of Texas →

How to read this directory

San Antonio, Texas appears in the CMS National Plan and Provider Enumeration System with 37,749 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 San Antonio - 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 San Antonio 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 San Antonio is weighted toward Behavior Technician (2,756 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,911 and Professional Counselor with 1,820). 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 Texas's population, San Antonio reports roughly 123.8 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.

For San Antonio 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 San Antonio, TX?

There are 37,749 registered healthcare providers in San Antonio, TX, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in San Antonio?

The most common specialties in San Antonio are Behavior Technician, Student in an Organized Health Care Education/Training Program, Professional Counselor, Licensed Vocational Nurse, Pharmacist. Behavior Technician has the most providers with 2,756.

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.