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 109 of 755.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in San Antonio

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. Hugo Castaneda, M.D.Internal Medicine Physician1730183179
  2. Jacklyn CastanedaLicensed Vocational Nurse1023518263
  3. Jaqueline CastanedaBehavior Technician1629751813
  4. Martin Castaneda, PT, DPTPhysical Therapist1093191561
  5. Mayeliza CastanedaHome Health Registered Nurse1649739301
  6. Pamela CastanedaRegistered Nurse1083430276
  7. Patricia Castaneda, M.D.Dermatopathology Physician1073807137
  8. Roberto Castaneda, LPCProfessional Counselor1073925871
  9. Sabrina Castaneda, OTROccupational Therapist1386778389
  10. Yazmine Castaneda, MA., LPCMental Health Counselor1003746694
  11. Andrea CastanoBehavior Technician1952819815
  12. Audrie CastanoStudent in an Organized Health Care Education/Training Program1477476778
  13. M. Teresa Castano, PSYDCognitive & Behavioral Psychologist1063524783
  14. Zenaida CastanoPharmacy Technician1548574122
  15. Marcela Castano De Zamacona, M.D.Pediatrics Physician1699094029
  16. Georgina Castanon, P.T.Physical Therapist1568619336
  17. Leslie CastanonSpeech-Language Pathologist1578947743
  18. Marcia Castanon, M.A., LPCProfessional Counselor1336738889
  19. Adrianna CastanuelaBehavior Technician1740824622
  20. Faith CastanuelaBehavior Technician1811715659
  21. Cynthia Casteel, M.D.Pediatrics Physician1891740247
  22. Luis Castelan, MDStudent in an Organized Health Care Education/Training Program1386403541
  23. Athena Castellano, RNRegistered Nurse1841027539
  24. Yocelyn CastellanoProfessional Counselor1376946483
  25. Devora Castellanos, RBTBehavior Technician1700578184
  26. Jose CastellanosProfessional Counselor1578432761
  27. Junelle Trina CastellanosRegistered Nurse1679448559
  28. Luis Castellanos, M.D.Obstetrics & Gynecology Physician1538158720
  29. Luis Castellanos, PHARM-D, RPHPharmacist1831792613
  30. Tina Castellanos, IBCLCLactation Consultant (Non-RN)1659771384
  31. Victoria Castellanos, RNRegistered Nurse1043030620
  32. Lliliam Castellanos-Castro, DDSGeneral Practice Dentistry1053804476
  33. Rebecca CastillaRegistered Nurse1992525489
  34. Daniela Castilleja, RBT-24-337029Behavior Technician1427800333
  35. Karla CastillejaOccupational Therapy Assistant1114596459
  36. Nancy Castilleja, SLPSpeech-Language Pathologist1164221743
  37. Maddy Castilleja TrejoAssistant Behavior Analyst1811866247
  38. Aaron Castillo, LPCProfessional Counselor1720390123
  39. Abygail CastilloBehavior Technician1831084979
  40. Alexa Castillo, RNRegistered Nurse1972082469
  41. Alyssa Castillo, PHARMDPharmacist1316773815
  42. Alyssa Castillo, DPTPhysical Therapist1770422784
  43. Anabell CastilloPharmacist1952279606
  44. Andrea CastilloSpeech-Language Pathologist1528378114
  45. Angela Castillo, MA, LPCProfessional Counselor1144053711
  46. Angelina Castillo, RBTBehavior Technician1578210746
  47. Ann CastilloLicensed Vocational Nurse1376367599
  48. Aurelio Castillo, BSN RNRegistered Nurse1457210015
  49. Aurora CastilloBehavior Analyst1710530878
  50. Autumn Castillo, DDSGeneral Practice Dentistry1285288449

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.