Ms Alexis Ann Mcallister, PNP - Medicare Nurse Practitioner in Saint Louis, MO

Ms Alexis Ann Mcallister, PNP is a medicare enrolled "Nurse Practitioner - Pediatrics" in Saint Louis, Missouri. Her current practice location is 1 Childrens Pl, Div Ped Endocrinology And Diabetes, Saint Louis, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 454-6051.

Ms Alexis Ann Mcallister is licensed to practice in Missouri (license number 2018043672) 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 1164827242.

Contact Information

Ms Alexis Ann Mcallister, PNP
1 Childrens Pl, Div Ped Endocrinology And Diabetes,
Saint Louis, MO 63110-1002
(314) 454-6051
(314) 454-6225

Map and Direction




Provider's Profile

Full NameMs Alexis Ann Mcallister
GenderFemale
SpecialityNurse Practitioner - Pediatrics
Location1 Childrens Pl, 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: 1164827242
  • Provider Enumeration Date: 10/30/2014
  • Last Update Date: 04/25/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 6800132689
  • Enrollment ID: I20190116000319

Medical Identifiers

Medical identifiers for Ms Alexis Ann Mcallister such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1164827242NPI-NPPES
420064410MedicaidMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LP0200XNurse Practitioner - Pediatrics 2018043672 (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. Ms Alexis Ann Mcallister allows following entities to bill medicare on her behalf.
Entity NameWashington University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194765685
PECOS PAC ID: 9830008770
Enrollment ID: O20040607000287

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. Ms Alexis Ann Mcallister 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
Ms Alexis Ann Mcallister, PNP
Po Box 60352,
Saint Louis, MO 63160-0352

Ph: (314) 454-6051
Ms Alexis Ann Mcallister, PNP
1 Childrens Pl, Div Ped Endocrinology And Diabetes,
Saint Louis, MO 63110-1002

Ph: (314) 454-6051

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).

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