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Sleep Medicine

Anthony Masi, MD

Sees patients in Manchester, MO · Missouri

Summary

Anthony Masi, MD (Sleep Medicine) is enrolled with Medicare at 1 practice location in Manchester, MO. NPI 1902884844. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(636) 391‑1222 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Anthony Masi, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

1Practice location
Sleep MedicinePrimary specialty
YesAccepts Medicare assignment
39Years since medical school (graduated 1987)
University Of Illinois College Of Med (chi/peor/rock/chm-Urb)Medical school
MaleGender (as listed)

Quick answers

Where does Anthony Masi see patients?
Medicare's clinician data lists 1 practice location in Manchester, MO. Call before your visit to confirm the address.
What is Anthony Masi's specialty?
Medicare lists Sleep Medicine as the primary specialty, and also Pulmonary Disease.
Does Anthony Masi accept Medicare assignment?
Yes. Medicare's clinician data says Anthony Masi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Anthony Masi?
(636) 391-1222, as listed in official Medicare / NPI Registry data.
What is Anthony Masi's NPI number?
1902884844. 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 Anthony Masi is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Sleep Medicine doctors in Missouri →

Other sleep medicine doctors in Missouri

Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.

All sleep medicine doctors in Missouri →

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year1987
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1902884844
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 2026-10-02, retrieved 2026-10-29
  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