ALEXANDRA CASTORENA VILLARREAL PNP
NPI 1619666260
Nurse Practitioner - Pediatrics in San Antonio, TX

Active since May 01, 2023PECOS Enrolled
5430 FREDERICKSBURG RD STE 508, SAN ANTONIO, TX 78229(210) 614-5539 Get Directions Write a Review

NPPES record last updated: January 8, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 8, 2025, May 1, 2023 (2 updates tracked since 2023).

About Alexandra Castorena Villarreal Pnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEXANDRA CASTORENA VILLARREAL PNP (NPI 1619666260) is an individual pediatrics provider in San Antonio, Texas, licensed in Texas (1143191) and active in the NPI registry since May 2023. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1619666260
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameALEXANDRA CASTORENA VILLARREALCredential: PNP
Location Address5430 FREDERICKSBURG RD STE 508San Antonio, TX 78229-3561
Mailing Address5430 Fredericksburg RdSan Antonio, TX 78229-3539 · (210) 462-1965
Sole ProprietorNo
Enumeration DateMay 1, 2023
Last NPPES UpdateJanuary 8, 20252 updates tracked since enumeration
NPPES CertifiedJanuary 8, 2025
NPI 1619666260 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License Licensed in TX · 1143191
5430 FREDERICKSBURG RD STE 508, San Antonio, TX 78229

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Alexandra Castorena Villarreal Pnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78229 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Neonatal)
5430 FREDERICKSBURG RD STE 508
SAN ANTONIO, TX 78229
Physician Assistant
5430 FREDERICKSBURG RD STE 508
SAN ANTONIO, TX 78229
Nurse Practitioner (Neonatal)
5430 FREDERICKSBURG RD STE 508
SAN ANTONIO, TX 78229
Nurse Practitioner (Neonatal)
5430 FREDERICKSBURG RD STE 508
SAN ANTONIO, TX 78229
Pediatrics (Neonatal-Perinatal Medicine)
5430 FREDERICKSBURG RD STE 508
SAN ANTONIO, TX 78229
Nurse Practitioner (Neonatal)
5430 FREDERICKSBURG RD STE 508
SAN ANTONIO, TX 78229
Nurse Practitioner (Pediatrics)
5430 FREDERICKSBURG RD STE 508
SAN ANTONIO, TX 78229
Nurse Practitioner (Pediatrics)
5430 FREDERICKSBURG RD STE 508
SAN ANTONIO, TX 78229

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexandra Villarreal's NPI number?

The NPI number for Alexandra Villarreal is 1619666260. It was assigned to this individual provider in the NPPES registry on May 1, 2023.

Where is Alexandra Villarreal located?

Alexandra Villarreal practices at 5430 Fredericksburg Rd Ste 508, San Antonio, TX 78229. The listed phone number is (210) 614-5539.

What is Alexandra Villarreal's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Alexandra Villarreal enrolled in Medicare?

Yes. Alexandra Villarreal is registered in the Medicare PECOS enrollment system.

What insurance does Alexandra Villarreal accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 2 other insurers list Alexandra Villarreal as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alexandra Villarreal was last updated on January 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.