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OLIVIA IVONNE CASTRO MD
NPI 1811296569
Pediatrics in San Antonio, TX

Active since March 21, 2011PECOS Enrolled
540 OAK CENTRE DR STE 200, SAN ANTONIO, TX 78258(210) 705-5001 Get Directions Write a Review

NPPES record last updated: October 22, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 18, 2023, Nov 16, 2015 (2 updates tracked since 2015).

About Olivia Ivonne Castro Md NPPES

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

OLIVIA IVONNE CASTRO MD (NPI 1811296569) is an individual pediatrics provider in San Antonio, Texas, licensed in Texas (P9172) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811296569
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameOLIVIA IVONNE CASTROCredential: MD
Location Address540 OAK CENTRE DR STE 200San Antonio, TX 78258-3937
Mailing Address540 Oak Centre Dr Ste 200San Antonio, TX 78258-3937 · (210) 705-5001 · Fax (210) 705-5004
Phone(210) 705-5001
Sole ProprietorNo
Enumeration DateMarch 21, 2011
Last NPPES UpdateOctober 22, 20252 updates tracked since enumeration
NPPES CertifiedOctober 22, 2025
✔ NPI 1811296569 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in TX · P9172
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
540 OAK CENTRE DR STE 200, San Antonio, TX 78258
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Olivia Ivonne Castro Md 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Olivia Castro reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Community Medicine Associates
13 mi
Family Medicine
903 W MARTIN ST # MS 49-2
San Antonio, TX 78207
  • Reassigned Medicare billing, Texas enrollment
  • 1,129 clinicians in this Medicare group
NPI 1245313329 (210) 358-3401
Christus Trinity Clinic Texas
267 mi
Family Medicine
520 DOUGLAS BLVD
Tyler, TX 75702
  • Reassigned Medicare billing, Texas enrollment
  • 2,745 clinicians in this Medicare group
NPI 1285684225 (903) 315-4119

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78258 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.

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 Olivia Castro's NPI number?

The NPI number for Olivia Castro is 1811296569. It was assigned to this individual provider in the NPPES registry on March 21, 2011.

Where is Olivia Castro located?

Olivia Castro practices at 540 Oak Centre Dr Ste 200, San Antonio, TX 78258. The listed phone number is (210) 705-5001.

What is Olivia Castro's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Olivia Castro enrolled in Medicare?

Yes. Olivia Castro is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Olivia Castro's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Olivia Castro reassigns Medicare benefits to 2 organizations: Community Medicine Associates (San Antonio, TX) and Christus Trinity Clinic Texas (Tyler, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Olivia Castro's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Olivia Castro accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan and UnitedHealthcare list Olivia Castro 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 Olivia Castro was last updated on October 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.