BILLIE NANETTE CORWIN FNP-C
NPI 1881446631
Nurse Practitioner - Family in San Marcos, TX
About Billie Nanette Corwin Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BILLIE NANETTE CORWIN FNP-C (NPI 1881446631) is an individual family provider in San Marcos, Texas, licensed in Texas (1156416) and active in the NPI registry since April 2024. She is enrolled in Medicare PECOS, is affiliated with Christus Santa Rosa Hospital-san Marcos, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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)
Billie Nanette Corwin Fnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Billie Corwin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Antonio, TX 78258
- Reassigned Medicare billing, Texas enrollment
- 964 clinicians in this Medicare group
Cedar Park, TX 78613
- Reassigned Medicare billing, Texas enrollment
- 33 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Christus Santa Rosa Hospital-San Marcos
Acute Care Hospitals · San Marcos, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78666 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Billie Corwin's NPI number?
The NPI number for Billie Corwin is 1881446631. It was assigned to this individual provider in the NPPES registry on April 4, 2024. The provider is also known as Nanette Billie Corwin Fnp-C.
Where is Billie Corwin located?
Billie Corwin practices at 151 Stagecoach Trl Ste 105, San Marcos, TX 78666. The listed phone number is (737) 213-1271.
What is Billie Corwin's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Billie Corwin enrolled in Medicare?
Yes. Billie Corwin is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Billie Corwin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Billie Corwin reassigns Medicare benefits to 2 organizations: Bhs Physicians Network, Inc (San Antonio, TX) and Wiseman Family Practice PLLC (Cedar Park, 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 Billie Corwin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Billie Corwin 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 4 other insurers list Billie Corwin 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.
Is Billie Corwin affiliated with any hospitals?
According to CMS data, Billie Corwin is affiliated with Christus Santa Rosa Hospital-San Marcos.
When was this NPI record last updated?
The NPPES record for Billie Corwin was last updated on May 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Billie Nanette Corwin, FNP-C · NPI 1881446631
Family physician in San Marcos, Texas. Individual provider, active in the CMS NPPES registry since April 4, 2024.
## Identity
- **NPI:** 1881446631 (Entity type: Individual)
- **Enumerated:** April 4, 2024
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 1156416 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 151 STAGECOACH TRL STE 105, San Marcos, TX 78666-3863
- **Phone:** (737) 213-1271
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Bhs Physicians Network, Inc (NPI 1598958431, San Antonio, TX); Wiseman Family Practice PLLC (NPI 1598195042, Cedar Park, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** May 14, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1881446631) · Data from the CMS NPPES public registry.