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 170 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. Annitzia DiazBehavior Technician1013892751
  2. Ashley Diaz, DNP, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1013772268
  3. Bianca Diaz, LPC-ASSOCIATEProfessional Counselor1558012591
  4. Claudia Diaz, D.D.S.General Practice Dentistry1679610406
  5. Crystal Diaz, M.A.Behavior Analyst1245376508
  6. Daniel Diaz, PHDClinical Psychologist1477666410
  7. Daniel Diaz, MDPsychiatry Physician1386825768
  8. Daniela Diaz, LPCProfessional Counselor1326909128
  9. Danielle Diaz, FNPNurse Practitioner1043421951
  10. Debra DiazRegistered Nurse1639981103
  11. Denise Diaz, RBTBehavior Technician1043776248
  12. Elizabeth Diaz, PA-CMedical Physician Assistant1265623623
  13. Elvia Diaz, COTACommunity Health Worker1750638813
  14. Eric DiazLicensed Vocational Nurse1689174294
  15. Gabriella Diaz, DDS, MSDPeriodontics1487233664
  16. Gabrielle DiazPharmacist1366024663
  17. George DiazOccupational Therapy Assistant1578950853
  18. Giancarlo Diaz, MDAnesthesiology Physician1538740394
  19. Heidi Diaz, M.S., CCC-SLPSpeech-Language Pathologist1891125860
  20. Ivonne Diaz, PHARM DOncology Pharmacist1669169462
  21. Jeremy Diaz, PAPhysician Assistant1437665684
  22. Jose Diaz, MDCardiovascular Disease Physician1578553764
  23. Jose Diaz, MDAnatomic Pathology & Clinical Pathology Physician1093787913
  24. Joseph Diaz, M.D.Allergy & Immunology Physician1417948241
  25. Juan Diaz, LCDCAddiction (Substance Use Disorder) Counselor1992422307
  26. Kaitlyn Diaz, PA-CPhysician Assistant1154184943
  27. Karen Diaz, MDObstetrics Physician1023125010
  28. Karina Diaz, LVNLicensed Vocational Nurse1902398332
  29. Karla Diaz, LVNLicensed Vocational Nurse1073152542
  30. Katherine DiazHome Health Aide1922887264
  31. Kimberly Diaz, PA-CMedical Physician Assistant1366623639
  32. Mabel Diaz, LPCMental Health Counselor1861241358
  33. Marina Diaz, BCBABehavior Analyst1316447154
  34. Marisa Diaz, PHD INTERNStudent in an Organized Health Care Education/Training Program1073067294
  35. Marissa DiazBehavior Technician1447862248
  36. Marlen Diaz, APRN-CNPAcute Care Nurse Practitioner1437970126
  37. Martha DiazBehavior Technician1861982704
  38. Mayra Diaz, REGISTERED DIETITIANRegistered Dietitian1679110019
  39. Melanie DiazNurse's Aide1669367306
  40. Natalie DiazBehavior Technician1700686763
  41. Paloma DiazPharmacy Technician1740118702
  42. Paul Diaz, M.D.Anesthesiology Physician1982865242
  43. Pedro Diaz, MDInternal Medicine Physician1487398327
  44. Penelope DiazMental Health Counselor1720858517
  45. Renee Diaz, LPC ASSOCIATEMental Health Counselor1922820075
  46. Ricardo Diaz, DDS, MSPeriodontics1538259254
  47. Richard Diaz, FNP, APRN-BC; PMHNPFamily Nurse Practitioner1942286901
  48. Robbie DiazPhysician Assistant1447051842
  49. Roberto Diaz, MDPain Medicine (Anesthesiology) Physician1649591595
  50. Roy Diaz, PTAPhysical Therapy Assistant1518449867

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.