SOUTH TEXAS PHYSICIAN GROUP, PLLC
NPI 1952016685
Internal Medicine in Fredericksburg, TX
About South Texas Physician Group, Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SOUTH TEXAS PHYSICIAN GROUP, PLLC (NPI 1952016685) is a healthcare organization registered as an internal medicine in Fredericksburg, Texas and active in the NPI registry since January 2023. The organization holds 3 active CLIA laboratory certificates and lists Nicholas Wadlington, Group Vice President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
South Texas Physician Group, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
16Medicare enrollment records show 16 clinicians reassign Medicare billing to South Texas Physician Group, PLLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 13 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 9
Clinicians, nearest first (16)
Fredericksburg, TX 78624
New Richmond, WI 54017
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA 3
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 45D0874501
South Texas Physician Group - Perry Feller Bldg (suite 310) · Fredericksburg, TXCertificate of Waiver 45D2102533
South Texas Physician Group - Immediate Care Clinic · Fredericksburg, TXCertificate of Waiver 45D2281500
South Texas Physician Group - Windcrest Multi-Specialty · Fredericksburg, TXFrequently 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 South Texas Physician Group, PLLC's NPI number?
The NPI number for South Texas Physician Group, PLLC is 1952016685. It was assigned to this organization in the NPPES registry on January 17, 2023.
Where is South Texas Physician Group, PLLC located?
South Texas Physician Group, PLLC is located at 205 W Windcrest St Ste 130, Fredericksburg, TX 78624. The listed phone number is (615) 373-7600.
What is South Texas Physician Group, PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is South Texas Physician Group, PLLC enrolled in Medicare?
Yes. South Texas Physician Group, PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through South Texas Physician Group, PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 16 clinicians in 9 Medicare specialties reassign their Medicare billing to South Texas Physician Group, PLLC. A 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 the clinician's services. The largest specialties are Nurse Practitioner (4), Family Practice (3) and General Surgery (3). Of these, 2 practice at this address and 13 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does South Texas Physician Group, PLLC hold CLIA laboratory certificates?
Yes. 3 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.
What insurance does South Texas Physician Group, PLLC accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 2 other insurers list South Texas Physician Group, PLLC 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 South Texas Physician Group, PLLC was last updated on November 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# South Texas Physician Group, Pllc · NPI 1952016685
Internal Medicine organization in Fredericksburg, Texas. Organization record, active in the CMS NPPES registry since January 17, 2023.
## Identity
- **NPI:** 1952016685 (Entity type: Organization)
- **Enumerated:** January 17, 2023
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Nicholas Wadlington, GROUP VICE PRESIDENT
## Practice location
- **Address:** 205 W WINDCREST ST STE 130, Fredericksburg, TX 78624-4478
- **Phone:** (615) 373-7600
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 16 clinicians in 9 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (4), Family Practice (3), General Surgery (3); 2 practice at this address and 13 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 21, 2025
- **CLIA laboratory certificates:** 3 on file
---
Source: [NPI Profile](https://npiprofile.com/npi/1952016685) · Data from the CMS NPPES public registry.