2026 data CMS NPPES NUCC Taxonomy

Doctors in San Antonio, TX

Compiled from official public sources by the PlainDoctor editorial team.

Active healthcare providers in San Antonio sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

36,319
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
2,535 providers
Texas
State
TX

36,319 healthcare providers across 20 specialties

San Antonio, Texas appears in the CMS National Plan and Provider Enumeration System with 36,319 registered healthcare providers spanning 20 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 2023 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 (2,535 clinicians, followed by Student in an Organized Health Care Education/Training Program with 2,068 and Professional Counselor with 1,593). 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 119.1 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.

Within Texas, San Antonio ranks #2 of 695 cities tracked by provider count, accounting for 8.7% of the state's registered providers.

For San Antonio patients, this directory is most useful as a starting shortlist, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. 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, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

36,319
Providers
20
Specialties
#2
of 695 TX cities
8.7%
of TX providers
119.1
Per 100K (state)

Which specialties are most common in San Antonio

Behavior Technician 2,535
Student in an Organized Health Care Education/Training Program 2,068
Professional Counselor 1,593
Licensed Vocational Nurse 1,369
Pharmacist 1,357
Registered Nurse 1,353
Family Nurse Practitioner 1,237
Speech-Language Pathologist 1,155
Physical Therapist 1,073
Internal Medicine Physician 916
Clinical Social Worker 847
Physician Assistant 804
Mental Health Counselor 780
Family Medicine Physician 768
General Practice Dentistry 713
Occupational Therapist 578
Dentist 561
Pediatrics Physician 508
Pharmacy Technician 482
Physical Therapy Assistant 461

Healthcare Providers (Page 104)

Name
Gloria Casias
Licensed Vocational Nurse
Gabrielle Casilang, CRNA
Certified Registered Nurse Anesthetist
Adam Casillas, PA-C
Physician Assistant
Eric Casillas, O.D.
Optometrist
Joseph Casillas, PTA
Physical Therapy Assistant
Karina Casillas
Behavior Technician
Mark Casillas, M.D.
Orthopaedic Foot and Ankle Surgery Physician
Michael Casillas, DDS
Oral and Maxillofacial Surgery (Dentist)
Mary Casiwa, MD
Family Medicine Physician
Pamela Caskey, M.S. CCC-SLP
Speech-Language Pathologist
Tye Caskey, OTR
Pediatric Occupational Therapist
Mary Cassapo
Student in an Organized Health Care Education/Training Program
Emilio Cassaretto, PT, DPT, CSCS
Orthopedic Physical Therapist
Alexander Casserly
Professional Counselor
Victor Cassias
Licensed Vocational Nurse
Haley Cassidy
Behavior Technician
Paul Cassidy
Mental Health Counselor
Robert Cassistre, LPC-INTERN
Mental Health Counselor
Kassandra Casso
Behavior Technician
Lorie Cast-Rebollo, DACM, MSAOM, BS, LMT
Massage Therapist
Luis Castagnini, M.D
Pediatric Infectious Diseases Physician
David Castanda, R.PH.
Compounded Sterile Preparations Pharmacist
Adrian Castaneda, ABOC
Optician
Alex Castaneda, FNP
Registered Nurse
Catherine Castaneda
Massage Therapist
Christine Castaneda, LCSW-S
Clinical Social Worker
Claudia Castaneda, M.S.
Addiction (Substance Use Disorder) Counselor
Dion Castaneda
Registered Nurse
Geralynn Castaneda
Behavior Technician
Guadalupe Castaneda
Behavior Analyst
Hugo Castaneda, M.D.
Specialist
Jacklyn Castaneda
Licensed Vocational Nurse
Jaqueline Castaneda
Behavior Technician
Martin Castaneda, PT, DPT
Physical Therapist
Mayeliza Castaneda
Home Health Registered Nurse
Pamela Castaneda
Registered Nurse
Patricia Castaneda, M.D.
Dermatopathology Physician
Roberto Castaneda, LPC
Professional Counselor
Sabrina Castaneda, OTR
Occupational Therapist
Andrea Castano
Behavior Technician
M. Teresa Castano, PSYD
Psychologist
Zenaida Castano
Pharmacy Technician
Marcela Castano De Zamacona, M.D.
Pediatrics Physician
Georgina Castanon, P.T.
Physical Therapist
Leslie Castanon
Speech-Language Pathologist
Marcia Castanon, M.A., LPC
Professional Counselor
Adrianna Castanuela
Behavior Technician
Faith Castanuela
Behavior Technician
Cynthia Casteel, M.D.
Pediatrics Physician
Luis Castelan, MD
Student in an Organized Health Care Education/Training Program

Nearby Cities in Texas

Other Texas cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in San Antonio, TX?
There are 36,319 registered healthcare providers in San Antonio, TX, covering 20 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 2,535.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the PlainDoctor editorial team.