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GRETCHEN MARIA SINCLAIR FNP
NPI 1881903649
Nurse Practitioner in San Antonio, TX

Active since September 28, 2010PECOS EnrolledAccepts Medicare Assignment
4800 FREDERICKSBURG RD, SUITE 127, SAN ANTONIO, TX 78229(210) 733-5072(210) 733-8649 Get Directions Write a Review

NPPES record last updated: July 10, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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

NPI1881903649
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameGRETCHEN MARIA SINCLAIRCredential: FNP
Location Address4800 FREDERICKSBURG RD, SUITE 127San Antonio, TX 78229-3628
Mailing AddressPo Box 1239Troy, MI 48099-1239 · (248) 824-6600 · Fax (855) 618-6655
Phone(210) 733-5072
Fax(210) 733-8649
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateSeptember 28, 2010
Last NPPES UpdateJuly 10, 2014
✔ NPI 1881903649 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in TX · 714323
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 714323 (TX)
4800 FREDERICKSBURG RD, San Antonio, TX 78229
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Other Identifiers 3

Medicare PINTXB156854TX
Medicaid219545501TX
Medicare PINTXB118832TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID446432546
PECOS Enrollment IDI20260608000635
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

New Patient
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. TAMARA JEANNE DOMINGUEZ M.D.
Family Medicine
4800 FREDERICKSBURG RD, SUITE 127
SAN ANTONIO, TX 78229
Bexar County (210) 468-0800
ANGELINA CANTRELL NP
Nurse Practitioner
4800 FREDERICKSBURG RD, SUITE 127
SAN ANTONIO, TX 78229
Bexar County (210) 733-5072
TIM SENTHAVISOUK NP
Nurse Practitioner
4800 FREDERICKSBURG RD, SUITE 127
SAN ANTONIO, TX 78229
Bexar County (210) 733-5072
LEA ANN CARVER NP
Nurse Practitioner
4800 FREDERICKSBURG RD, STE 127
SAN ANTONIO, TX 78229
Bexar County (210) 733-5072
CARL SIMPSON M.D.
General Practice
4800 FREDERICKSBURG RD, SUITE 127
SAN ANTONIO, TX 78229
Bexar County (210) 468-0800
EDWARD MAXWELL PA
Physician Assistant
4800 FREDERICKSBURG RD, SUITE 127
SAN ANTONIO, TX 78229
Bexar County (210) 733-5072

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.

What insurance does Gretchen Sinclair accept?

Health plans from Ambetter from Arizona Complete Health list Gretchen Sinclair 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 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.