Gretchen Maria Sinclair, FNP
Nurse Practitioner · San Antonio, TX
Gretchen Maria Sinclair, FNP is a nurse practitioner with a practice address in San Antonio, Texas, and NPI 1881903649, issued on Sep 28, 2010. Check the license (Texas 714323, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gretchen Maria Sinclair
- Credential
- FNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 714323 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4800 Fredericksburg RD, San Antonio, TX 78229
- Phone
- (210) 733-5072
- Enumerated
- Sep 28, 2010
- Record last updated
- Jul 10, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (210) 733-8649
- Medicaid ID
- 219545501 TX
- Medicare enrollment
- Enrolled (PECOS I20260608000635); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 4,825 in Texas → Look up another NPI →
Also registered at 4800 Fredericksburg RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gretchen Maria Sinclair in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 714323Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average nurse practitioner in 2024
15 Medicare Part D claims, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Gretchen Maria Sinclair among 4,825 nurse practitioner records in Texas
Gretchen Maria Sinclair, FNP is one of 4,825 nurse practitioner records with a practice address in Texas. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 22% of them.
- NPI issued2010 · 22% of these records are older, 76% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2010 · median 2018 among the 2,618 with a school on file
- Record last updated2014 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
393 nurse practitioner records list a practice address in San Antonio
They are 393 of the 37,749 NPPES records with a practice address in San Antonio, and 4,825 nurse practitioner records in Texas.
All 4,825 in Texas → Every provider in San Antonio → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Sonja BruneSan Antonio, TX 782291780683888
- Kathleen Buckley, CPNPSan Antonio, TX 782291437110202
- Angelina Cantrell, NPSan Antonio, TX 782291376560888
- Aimee Carlson, CPNPSan Antonio, TX 782291073613386
- Candace Chapin, FNPSan Antonio, TX 782291568574531
- Tina Clements, MSN, APRN, FNP-BCSan Antonio, TX 782291124018080
- John Davis, FNPSan Antonio, TX 782291457350431
- Peggy FrancisSan Antonio, TX 782291013926542
Common questions
What is Gretchen Maria Sinclair, FNP's NPI number?
Gretchen Maria Sinclair, FNP's National Provider Identifier (NPI) is 1881903649, issued on Sep 28, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Gretchen Maria Sinclair, FNP located?
The NPPES record lists a practice address at 4800 Fredericksburg RD, San Antonio, TX, 78229. Phone: (210) 733-5072. Providers update this record themselves, so call before visiting.
How can I verify Gretchen Maria Sinclair, FNP's license?
NPPES lists Texas license number 714323, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Gretchen Maria Sinclair, FNP prescribe under Medicare Part D?
In 2024, Gretchen Maria Sinclair, FNP had 15 Medicare Part D claims; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.