SYLVIA LEAL-CASTANON MD
NPI 1841307915
Pediatrics in San Antonio, TX
About Sylvia Leal-castanon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SYLVIA LEAL-CASTANON MD (NPI 1841307915) is an individual pediatrics provider in San Antonio, Texas, licensed in Texas (J5603) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in San Antonio.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Sylvia Leal-castanon Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Sylvia Leal-castanon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Antonio, TX 78207
- Reassigned Medicare billing, Texas enrollment
- 1,129 clinicians in this Medicare group
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 78207 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN ANTONIO, TX 78207
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 Sylvia Leal-castanon's NPI number?
The NPI number for Sylvia Leal-castanon is 1841307915. It was assigned to this individual provider in the NPPES registry on August 24, 2006.
Where is Sylvia Leal-castanon located?
Sylvia Leal-castanon practices at 333 N Santa Rosa, 3rd Fl, San Antonio, TX 78207. The listed phone number is (210) 257-1400.
What is Sylvia Leal-castanon's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Sylvia Leal-castanon enrolled in Medicare?
Yes. Sylvia Leal-castanon is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Sylvia Leal-castanon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sylvia Leal-castanon reassigns Medicare benefits to Community Medicine Associates (San Antonio, TX). The 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 Sylvia Leal-castanon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sylvia Leal-castanon accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Community First and WellPoint list Sylvia Leal-castanon 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 Sylvia Leal-castanon was last updated on July 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.
# Sylvia Leal-Castanon, MD · NPI 1841307915
Pediatrics physician in San Antonio, Texas. Individual provider, active in the CMS NPPES registry since August 24, 2006.
## Identity
- **NPI:** 1841307915 (Entity type: Individual)
- **Enumerated:** August 24, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** J5603 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 333 N SANTA ROSA, 3RD FL, San Antonio, TX 78207
- **Phone:** (210) 257-1400
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Community Medicine Associates (NPI 1245313329, San Antonio, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 29, 2024
- **Other identifiers:** Medicaid 103050401 (TX); Other 103050402 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1841307915) · Data from the CMS NPPES public registry.