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 108 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. Lauren Casas, LVNLicensed Vocational Nurse1851918056
  2. Sonya Casas, BCBABehavior Analyst1043564883
  3. Sandra CascosCounselor1538020458
  4. Christa CaseDental Hygienist1851252639
  5. Christopher CasePediatrics Physician1427315837
  6. John Case, M.D.Urology Physician1396859039
  7. James Casey, P.T.Physical Therapist1730172198
  8. Jessica Casey, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1518730167
  9. Kylie Casey, FNPAcute Care Nurse Practitioner1720509508
  10. Erika Cash, LPC- ASSOCIATEMental Health Counselor1861258741
  11. Mark Cashen, CRNACertified Registered Nurse Anesthetist1437562212
  12. Sharon Cashion, LCSWClinical Social Worker1558478354
  13. Abigail Casiano, PHARMDPharmacist1720727829
  14. Cynthia Casiano, LPCProfessional Counselor1225423213
  15. Daniel CasianoRegistered Nurse1386223626
  16. Felix Casiano, M.D.Student in an Organized Health Care Education/Training Program1063692689
  17. Roxanne Casiano, PT, DPTPhysical Therapist1730861089
  18. Victor Casiano, M.D.Obstetrics & Gynecology Physician1679562862
  19. Gloria CasiasLicensed Vocational Nurse1467931493
  20. Gabrielle Casilang, CRNACertified Registered Nurse Anesthetist1578138251
  21. Adam Casillas, PA-CPhysician Assistant1083918346
  22. Eric Casillas, O.D.Optometrist1649269697
  23. Javier CasillasRegistered Nurse1962331272
  24. Joseph Casillas, PTAPhysical Therapy Assistant1356822571
  25. Karina CasillasBehavior Technician1780465765
  26. Mark Casillas, M.D.Orthopaedic Foot and Ankle Surgery Physician1598709305
  27. Michael Casillas, DDSOral and Maxillofacial Surgery (Dentist)1407835069
  28. Mary Casiwa, MDFamily Medicine Physician1497016042
  29. Pamela Caskey, M.S. CCC-SLPSpeech-Language Pathologist1427786300
  30. Tye Caskey, OTRPediatric Occupational Therapist1689386278
  31. Mary CassapoStudent in an Organized Health Care Education/Training Program1285466565
  32. Emilio Cassaretto, PT, DPT, CSCSOrthopedic Physical Therapist1679324016
  33. Alexander CasserlyProfessional Counselor1730787961
  34. Victor CassiasLicensed Vocational Nurse1467936294
  35. Haley CassidyBehavior Technician1598634859
  36. Paul CassidyProfessional Counselor1003071267
  37. Robert Cassistre, LPC-INTERNMental Health Counselor1184260457
  38. Kassandra CassoBehavior Technician1376388694
  39. Lorie Cast-Rebollo, DACM, MSAOM, BS, LMTMassage Therapist1497340863
  40. Luis Castagnini, M.DPediatric Infectious Diseases Physician1952635658
  41. David Castanda, R.PH.Pharmacist1770307654
  42. Adrian Castaneda, ABOCOptician1124340740
  43. Alex Castaneda, FNPNurse Practitioner1053565689
  44. Catherine CastanedaMassage Therapist1851625149
  45. Celina CastanedaProfessional Counselor1366961740
  46. Christine Castaneda, LCSW-SClinical Social Worker1063174217
  47. Claudia Castaneda, M.S.Professional Counselor1689130668
  48. Dion CastanedaRegistered Nurse1386128155
  49. Geralynn CastanedaTechnician1043044761
  50. Guadalupe CastanedaBehavior Analyst1578600383

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.