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.
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
- Annitzia DiazBehavior Technician1013892751
- Ashley Diaz, DNP, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1013772268
- Bianca Diaz, LPC-ASSOCIATEProfessional Counselor1558012591
- Claudia Diaz, D.D.S.General Practice Dentistry1679610406
- Crystal Diaz, M.A.Behavior Analyst1245376508
- Daniel Diaz, PHDClinical Psychologist1477666410
- Daniel Diaz, MDPsychiatry Physician1386825768
- Daniela Diaz, LPCProfessional Counselor1326909128
- Danielle Diaz, FNPNurse Practitioner1043421951
- Debra DiazRegistered Nurse1639981103
- Denise Diaz, RBTBehavior Technician1043776248
- Elizabeth Diaz, PA-CMedical Physician Assistant1265623623
- Elvia Diaz, COTACommunity Health Worker1750638813
- Eric DiazLicensed Vocational Nurse1689174294
- Gabriella Diaz, DDS, MSDPeriodontics1487233664
- Gabrielle DiazPharmacist1366024663
- George DiazOccupational Therapy Assistant1578950853
- Giancarlo Diaz, MDAnesthesiology Physician1538740394
- Heidi Diaz, M.S., CCC-SLPSpeech-Language Pathologist1891125860
- Ivonne Diaz, PHARM DOncology Pharmacist1669169462
- Jeremy Diaz, PAPhysician Assistant1437665684
- Jose Diaz, MDCardiovascular Disease Physician1578553764
- Jose Diaz, MDAnatomic Pathology & Clinical Pathology Physician1093787913
- Joseph Diaz, M.D.Allergy & Immunology Physician1417948241
- Juan Diaz, LCDCAddiction (Substance Use Disorder) Counselor1992422307
- Kaitlyn Diaz, PA-CPhysician Assistant1154184943
- Karen Diaz, MDObstetrics Physician1023125010
- Karina Diaz, LVNLicensed Vocational Nurse1902398332
- Karla Diaz, LVNLicensed Vocational Nurse1073152542
- Katherine DiazHome Health Aide1922887264
- Kimberly Diaz, PA-CMedical Physician Assistant1366623639
- Mabel Diaz, LPCMental Health Counselor1861241358
- Marina Diaz, BCBABehavior Analyst1316447154
- Marisa Diaz, PHD INTERNStudent in an Organized Health Care Education/Training Program1073067294
- Marissa DiazBehavior Technician1447862248
- Marlen Diaz, APRN-CNPAcute Care Nurse Practitioner1437970126
- Martha DiazBehavior Technician1861982704
- Mayra Diaz, REGISTERED DIETITIANRegistered Dietitian1679110019
- Melanie DiazNurse's Aide1669367306
- Natalie DiazBehavior Technician1700686763
- Paloma DiazPharmacy Technician1740118702
- Paul Diaz, M.D.Anesthesiology Physician1982865242
- Pedro Diaz, MDInternal Medicine Physician1487398327
- Penelope DiazMental Health Counselor1720858517
- Renee Diaz, LPC ASSOCIATEMental Health Counselor1922820075
- Ricardo Diaz, DDS, MSPeriodontics1538259254
- Richard Diaz, FNP, APRN-BC; PMHNPFamily Nurse Practitioner1942286901
- Robbie DiazPhysician Assistant1447051842
- Roberto Diaz, MDPain Medicine (Anesthesiology) Physician1649591595
- Roy Diaz, PTAPhysical Therapy Assistant1518449867
The largest Texas cities
- Houston61,221
- Dallas36,304
- Austin26,585
- Fort Worth15,511
- El Paso11,091
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.