Active NPI
Marcus Austin Villarreal, DO
- Pediatrics Physician
- San Antonio, TX
National Provider Identifier
1609458637
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatrics Physician
- License
- V0570
- Practice address
- 4502 Medical Dr
San Antonio, TX 78229-4402 - Phone
- (210) 358-1673
- NPI assigned
- Apr 28, 2021
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Pediatrics Physician | 208000000X | V0570 | TX | Primary |
| Hospitalist Physician | 208M00000X | V0570 | TX |
Addresses
Primary practice location
4502 Medical Dr
San Antonio, TX 78229-4402
Mailing address
4502 Medical Dr
San Antonio, TX 78229-4402
Phone (210) 358-1673
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20260608002808 | TX | Practitioner - Pediatric Medicine | 3678044971 |
Care Compare profile
Medicare Care Compare- Specialty
- Pediatric Medicine
- Education
- Other, 2021
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
7714 Wexford CV
San Antonio, TX 78240-3956
8431 Fredericksburg Rd
FL 5
San Antonio, TX 78229-3392
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| BP10074308 | TX | MD | Student in an Organized Health Care Education/Training Program |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1619568000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1780876800000",
"number": "1609458637",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4502 MEDICAL DR",
"city": "SAN ANTONIO",
"state": "TX",
"postal_code": "782294402",
"telephone_number": "210-358-1673"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4502 MEDICAL DR",
"city": "SAN ANTONIO",
"state": "TX",
"postal_code": "782294402",
"telephone_number": "210-358-1673"
}
],
"practiceLocations": [],
"basic": {
"last_name": "VILLARREAL",
"first_name": "MARCUS",
"middle_name": "AUSTIN",
"name_prefix": "Dr.",
"credential": "DO",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2021-04-28",
"last_updated": "2026-06-08",
"certification_date": "2026-06-08",
"status": "A"
},
"taxonomies": [
{
"code": "208000000X",
"taxonomy_group": "",
"desc": "Pediatrics",
"state": "TX",
"license": "V0570",
"primary": true
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "TX",
"license": "V0570",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in San Antonio, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.