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

Internal Medicine

Glenn F. Alli, MD

Sees patients in West Springfield, MA · Massachusetts

Summary

Dr. Glenn F. Alli, MD is an internal medicine doctor at 46 Daggett Dr, West Springfield, MA 01089. Phone: (413) 794-9110. Accepts Medicare assignment. NPI 1639180268. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 46 Daggett Dr, West Springfield, MA 01089 · Directions
  • Phone: (413) 794‑9110
  • Medicare: Accepts Medicare assignment
  • Group practice: Baystate Medical Practices Inc
  • Medical school: Rutgers New Jersey Medical School · graduated 1989 (37 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Glenn F. Alli, 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 Glenn F. Alli accept Medicare assignment?
Yes. Medicare's clinician data says Glenn F. Alli 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 Glenn F. Alli's NPI number?
1639180268. 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 Glenn F. Alli is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Baystate Medical Practices Inc1,369 clinicians in the group

Specialties

Find other Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in West Springfield

Clinicians with the same Medicare primary specialty in West Springfield, MA — not a recommendation.

All internal medicine doctors in West Springfield →

Other clinicians in Baystate Medical Practices Inc

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

Clinician information

CredentialMD
Medical schoolRutgers New Jersey Medical School
Graduation year1989 (37 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1639180268
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