HEATHER ANN KLECZEWSKI MD
NPI 1679799423
Pediatrics - Pediatric Emergency Medicine in San Antonio, TX
About Heather Ann Kleczewski Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HEATHER ANN KLECZEWSKI MD (NPI 1679799423) is an individual pediatric emergency medicine provider in San Antonio, Texas, licensed in Texas (N6426) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 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)
Heather Ann Kleczewski Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Heather Kleczewski reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Antonio, TX 78207
- Reassigned Medicare billing, Texas enrollment
- 453 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 149 clinicians in this Medicare group
Gonzales, TX 78629
- Reassigned Medicare billing, Texas enrollment
- 430 clinicians in this Medicare group
Austin, TX 78723
- Reassigned Medicare billing, Texas enrollment
- 5,299 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.
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.
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
SAN ANTONIO, TX 78207
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 Heather Kleczewski's NPI number?
The NPI number for Heather Kleczewski is 1679799423. It was assigned to this individual provider in the NPPES registry on April 18, 2007.
Where is Heather Kleczewski located?
Heather Kleczewski practices at 333 N Santa Rosa, San Antonio, TX 78207. The listed phone number is (210) 704-3030.
What is Heather Kleczewski's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.
Is Heather Kleczewski enrolled in Medicare?
Yes. Heather Kleczewski is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Heather Kleczewski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Heather Kleczewski reassigns Medicare benefits to 4 organizations: Baylor College Of Medicine (San Antonio, TX), Bexar Emergency Physicians, PLLC (San Antonio, TX), Victoria Emergency Partners LLC (Gonzales, TX) and University Of Texas Southwestern Medical Center At Dallas (Austin, 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 Heather Kleczewski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Heather Kleczewski accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan and Sendero Health Plans, Local Nonprofit list Heather Kleczewski 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 Heather Kleczewski was last updated on March 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Heather Ann Kleczewski, MD · NPI 1679799423
Pediatric Emergency Medicine physician in San Antonio, Texas. Individual provider, active in the CMS NPPES registry since April 18, 2007.
## Identity
- **NPI:** 1679799423 (Entity type: Individual)
- **Enumerated:** April 18, 2007
- **Primary specialty:** Pediatrics - Pediatric Emergency Medicine · taxonomy 2080P0204X
- **State license:** N6426 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 333 N SANTA ROSA, San Antonio, TX 78207-3108
- **Phone:** (210) 704-3030
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Baylor College Of Medicine (NPI 1285079764, San Antonio, TX); Bexar Emergency Physicians, PLLC (NPI 1548034994, San Antonio, TX); Victoria Emergency Partners LLC (NPI 1164770996, Gonzales, TX); University Of Texas Southwestern Medical Center At Dallas (NPI 1871729376, Austin, TX) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 16, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1679799423) · Data from the CMS NPPES public registry.