Maria Winsor, AGNP-C - Medicare Nurse Practitioner in Saint Louis, MO

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Maria Winsor, AGNP-C is a medicare enrolled "Nurse Practitioner - Adult Health" in Saint Louis, Missouri. Her current practice location is 6400 Clayton Rd, Saint Louis, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 647-6666.

Maria Winsor is licensed to practice in Missouri (license number 2016036106) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1528593928.

Contact Information

Maria Winsor, AGNP-C
6400 Clayton Rd,
Saint Louis, MO 63117-1850
(314) 647-6666
Not Available

Map and Direction




Provider's Profile

Full NameMaria Winsor
GenderFemale
SpecialityNurse Practitioner - Adult Health
Location6400 Clayton Rd, Saint Louis, Missouri
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1528593928
  • Provider Enumeration Date: 04/24/2017
  • Last Update Date: 10/02/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 7416224118
  • Enrollment ID: I20210712001269

Medical Identifiers

Medical identifiers for Maria Winsor such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528593928NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LA2200XNurse Practitioner - Adult Health 209015720 (Illinois)Secondary
363LA2200XNurse Practitioner - Adult Health 2016036106 (Missouri)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Maria Winsor allows following entities to bill medicare on her behalf.
Entity NameGranite City Hospitalist Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669926424
PECOS PAC ID: 8527356591
Enrollment ID: O20161006000282
Entity NameGeneration Clinical Partners Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366050007
PECOS PAC ID: 1557687803
Enrollment ID: O20200908001358
Entity NamePost Acute Medical Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1730713025
PECOS PAC ID: 5193156115
Enrollment ID: O20240124001161
Entity NameAltea Medical Illinois Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447039227
PECOS PAC ID: 5799129730
Enrollment ID: O20240219001371

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Maria Winsor is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Maria Winsor, AGNP-C
6400 Clayton Rd Ste 303,
Saint Louis, MO 63117-1850

Ph: (314) 647-6666		Maria Winsor, AGNP-C
6400 Clayton Rd,
Saint Louis, MO 63117-1850

Ph: (314) 647-6666

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.