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Nurse Practitioner

Morgan Mastrostefano

Sees patients in Menomonee Falls, WI · Wisconsin

Summary

Morgan Mastrostefano is a nurse practitioner at N74W12501 Leatherwood Ct, Menomonee Falls, WI 53051. May accept Medicare assignment. NPI 1437089364. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Nurse practitioner
  • Address: N74W12501 Leatherwood Ct, Menomonee Falls, WI 53051 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • School: University Of Wisconsin School Of Medicine · graduated 2025
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Morgan Mastrostefano, 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 Morgan Mastrostefano accept Medicare assignment?
Medicare's clinician data says Morgan Mastrostefano may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Morgan Mastrostefano's NPI number?
1437089364. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Morgan Mastrostefano is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other clinicians: Nurse Practitioner, Wisconsin →

Other nurse practitioners in Menomonee Falls

Clinicians with the same Medicare primary specialty in Menomonee Falls, WI — not a recommendation.

All nurse practitioners in Menomonee Falls →

Clinician information

SchoolUniversity Of Wisconsin School Of Medicine
Graduation year2025
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1437089364
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians