GRETCHEN MARIA SINCLAIR FNP
NPI 1881903649
Nurse Practitioner in San Antonio, TX
About Gretchen Maria Sinclair Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRETCHEN MARIA SINCLAIR FNP (NPI 1881903649) is an individual nurse practitioner in San Antonio, Texas, licensed in Texas (714323) and active in the NPI registry since September 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Gretchen Maria Sinclair Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Gretchen Sinclair reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 802 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Texas enrollment
- 91 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Arkansas, Arizona, Illinois, Pennsylvania and Washington enrollments
- Also billed through NPI 1952917122 (Arizona), NPI 1134739089 (Washington)
- 13 clinicians in this Medicare group
Davenport, IA 52807
- Reassigned Medicare billing, Iowa enrollment
- 46 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 36 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 78229 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN ANTONIO, TX 78229
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 Gretchen Sinclair's NPI number?
The NPI number for Gretchen Sinclair is 1881903649. It was assigned to this individual provider in the NPPES registry on September 28, 2010.
Where is Gretchen Sinclair located?
Gretchen Sinclair practices at 4800 Fredericksburg Rd Suite 127, San Antonio, TX 78229. The listed phone number is (210) 733-5072.
What is Gretchen Sinclair's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Gretchen Sinclair enrolled in Medicare?
Yes. Gretchen Sinclair is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gretchen Sinclair's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen Sinclair reassigns Medicare benefits to 5 organizations: Vpa Of Texas PLLC (San Antonio, TX), Monogram Health Professional Services Of Texas PLLC (Brentwood, TN), Monogram Health Professional Services PC (Brentwood, TN), Monogram Health Professional Services Of Iowa PLLC (Davenport, IA) and Monogram Health Professional Services Of California PC (Orange, CA). 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 Gretchen Sinclair's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gretchen Sinclair was last updated on July 10, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Gretchen Maria Sinclair, FNP · NPI 1881903649
Nurse Practitioner physician in San Antonio, Texas. Individual provider, active in the CMS NPPES registry since September 28, 2010.
## Identity
- **NPI:** 1881903649 (Entity type: Individual)
- **Enumerated:** September 28, 2010
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 714323 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 4800 FREDERICKSBURG RD, SUITE 127, San Antonio, TX 78229-3628
- **Phone:** (210) 733-5072 · **Fax:** (210) 733-8649
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Vpa Of Texas PLLC (NPI 1578175865, San Antonio, TX); Monogram Health Professional Services Of Texas PLLC (NPI 1396481255, Brentwood, TN); Monogram Health Professional Services PC (NPI 1770182735, Brentwood, TN); Monogram Health Professional Services Of Iowa PLLC (NPI 1285344150, Davenport, IA); Monogram Health Professional Services Of California PC (NPI 1245950757, Orange, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** July 10, 2014
- **Other identifiers:** Medicare PIN TXB156854 (TX); Medicaid 219545501 (TX); Medicare PIN TXB118832 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1881903649) · Data from the CMS NPPES public registry.