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

Emergency Medicine

Neil D. McCormack, MD

Works at hospitals in Leominster, MA · Worcester, MA · Massachusetts

Summary

Neil D. McCormack, MD (Emergency Medicine) is listed by Medicare at 2 hospitals in Leominster, MA and Worcester, MA. NPI 1639512114. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Neil D. McCormack, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
13Years since medical school (graduated 2013)
Boston University School Of MedicineMedical school
MaleGender (as listed)
UMass Memorial Medical Group IncGroup practice

Quick answers

Which hospitals does Neil D. McCormack work at?
Medicare's official clinician data lists Neil D. McCormack at 2 hospitals: UMass Memorial Healthalliance Hospitals and UMass Memorial Medical Center/University Campus. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Neil D. McCormack see patients?
Medicare's clinician data lists 1 practice location in Worcester, MA. Call before your visit to confirm the address.
What is Neil D. McCormack's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Neil D. McCormack accept Medicare assignment?
Yes. Medicare's clinician data says Neil D. McCormack 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 Neil D. McCormack?
(508) 334-1000, as listed in official Medicare / NPI Registry data.
What is Neil D. McCormack's NPI number?
1639512114. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Neil D. McCormack works

Medicare's Facility Affiliation Data lists Neil D. McCormack at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Neil D. McCormack is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Neil D. McCormack as a member of this group (CMS data updated 2026-10-02).

  • UMass Memorial Medical Group Inc2,516 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Massachusetts →

Other emergency medicine doctors in Worcester

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

All emergency medicine doctors in Worcester →

Clinician information

CredentialMD
Medical schoolBoston University School Of Medicine
Graduation year2013
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1639512114
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians