Maria Winsor, AGNP-C
Adult Health Nurse Practitioner · Saint Louis, MO
Maria Winsor, AGNP-C is an adult health nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1528593928, issued on Apr 24, 2017. Check the license (Missouri 2016036106, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria Winsor
- Credential
- AGNP-C
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License numbers
- 2016036106 MO
209015720 IL
Self-reported in NPPES; status is on the state search - Practice location
- 6400 Clayton RD, Saint Louis, MO 63117
- Phone
- (314) 647-6666
- Enumerated
- Apr 24, 2017
- Record last updated
- Oct 2, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210712001269); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 794 in Missouri → Look up another NPI →
Also registered at 6400 Clayton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Heavey, M.D.Gastroenterology Physician1316089261
- Edward Heidbrier, MD PCGeriatric Medicine (Internal Medicine) Physician1154373124
Verify Maria Winsor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2016036106Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average adult health nurse practitioner in 2024
3,647 Medicare Part D claims for 157 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 174 claims were for opioids.
Most prescribed
- Atorvastatin Calcium261 claims
- Furosemide162 claims
- Gabapentin147 claims
- Trazodone Hcl133 claims
- Potassium Chloride126 claims
- Metformin Hcl98 claims
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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $59.01
3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Midwest Inpatient Anderson Health IncMaryville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria Winsor among 794 adult health nurse practitioner records in Missouri
Maria Winsor, AGNP-C is one of 794 adult health nurse practitioner records with a practice address in Missouri. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 76% of them.
- NPI issued2017 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2016 · median 2013 among the 399 with a school on file
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
332 adult health nurse practitioner records list a practice address in Saint Louis
They are 332 of the 27,605 NPPES records with a practice address in Saint Louis, and 794 adult health nurse practitioner records in Missouri.
All 794 in Missouri → Every provider in Saint Louis → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Saovarot Bryant, ANPSaint Louis, MO 631171184879413
- Beverly Campbell, NPSaint Louis, MO 631171881990349
- Vickie Carll, ANPSaint Louis, MO 631171710902176
- Julie Chwarczinski, ANP-CSaint Louis, MO 631171124367990
- Joan Clark, ANPSaint Louis, MO 631171710969498
- Deborah Garbo, RN, CS, ANPSaint Louis, MO 631171518966431
- Yashica Hawkins, ANPSaint Louis, MO 631171104161405
- April Lampkin, ANPSaint Louis, MO 631171932430097
Common questions
What is Maria Winsor, AGNP-C's NPI number?
Maria Winsor, AGNP-C's National Provider Identifier (NPI) is 1528593928, issued on Apr 24, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Maria Winsor, AGNP-C located?
The NPPES record lists a practice address at 6400 Clayton RD, Saint Louis, MO, 63117. Phone: (314) 647-6666. Providers update this record themselves, so call before visiting.
How can I verify Maria Winsor, AGNP-C's license?
NPPES lists Missouri license number 2016036106, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Maria Winsor, AGNP-C prescribe under Medicare Part D?
In 2024, Maria Winsor, AGNP-C had 3,647 Medicare Part D claims for 157 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.
What is Maria Winsor, AGNP-C's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.