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

Physician Assistant

John F. Messina

Sees patients in Manhasset, NY · Staten Island, NY · New York

Summary

John F. Messina is a physician assistant at 300 Community Dr, Manhasset, NY 11030. Phone: (516) 562-2229. Accepts Medicare assignment. NPI 1568575819. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Physician assistant
  • Address: 300 Community Dr, Manhasset, NY 11030 · Directions (4 more locations)
  • Phone: (516) 562‑2229
  • Medicare: Accepts Medicare assignment
  • Group practice: North Shore-Lij Medical PC
  • School: graduated 1998
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about John F. Messina, 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 John F. Messina accept Medicare assignment?
Yes. Medicare's clinician data says John F. Messina accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is John F. Messina's NPI number?
1568575819. 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 John F. Messina is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists John F. Messina as a member of this group (CMS data updated October 2, 2026).

  • North Shore-Lij Medical PC6,440 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, New York →

Other physician assistants in Manhasset

Clinicians with the same Medicare primary specialty in Manhasset, NY — not a recommendation.

All physician assistants in Manhasset →

Other clinicians in North Shore-Lij Medical PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

Graduation year1998
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1568575819
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