Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

Jennifer M. Mazanek

Works at hospitals in Centralia, IL · Illinois

Summary

Jennifer M. Mazanek is a nurse practitioner at PO Box, Saint Louis, MO 63195. May accept Medicare assignment. NPI 1922951219. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Jennifer M. Mazanek, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Jennifer M. Mazanek accept Medicare assignment?
Medicare's clinician data says Jennifer M. Mazanek may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Jennifer M. Mazanek's NPI number?
1922951219. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jennifer M. Mazanek works

Medicare's Facility Affiliation Data lists Jennifer M. Mazanek at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Jennifer M. Mazanek is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other clinicians: Nurse Practitioner, Missouri →

Other nurse practitioners in Saint Louis

Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.

All nurse practitioners in Saint Louis →

Clinician information

Graduation year2025
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1922951219
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians