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

Internal Medicine

Patrick A. Duplan, MD

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

Summary

Patrick A. Duplan, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Southbridge, MA and Worcester, MA. NPI 1124656285. 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 Patrick A. Duplan, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
MaleGender (as listed)
UMass Memorial Medical Group IncGroup practice

Quick answers

Which hospitals does Patrick A. Duplan work at?
Medicare's official clinician data lists Patrick A. Duplan at 2 hospitals: UMass Memorial Health - Harrington Hospital and UMass Memorial Medical Center/University Campus. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Patrick A. Duplan see patients?
Medicare's clinician data lists 2 practice locations, including Southbridge, MA and Worcester, MA. Call before your visit to confirm the address.
What is Patrick A. Duplan's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Patrick A. Duplan accept Medicare assignment?
Yes. Medicare's clinician data says Patrick A. Duplan 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 Patrick A. Duplan?
(508) 765-9771, as listed in official Medicare / NPI Registry data.
What is Patrick A. Duplan's NPI number?
1124656285. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Patrick A. Duplan works

Medicare's Facility Affiliation Data lists Patrick A. Duplan 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 Patrick A. Duplan is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Patrick A. Duplan 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 Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in Southbridge

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

All internal medicine doctors in Southbridge →

Clinician information

CredentialMD
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1124656285
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