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Internal Medicine

Samuel V. Thomas, DO

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

Summary

Samuel V. Thomas, DO (Internal Medicine) is listed by Medicare at 3 hospitals in Southbridge, MA, Leominster, MA and Worcester, MA. NPI 1114584455. 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 Samuel V. Thomas, 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)
Liberty Univ College Of Osteopathic MedicineMedical school
MaleGender (as listed)
UMass Memorial Medical Group IncGroup practice

Quick answers

Which hospitals does Samuel V. Thomas work at?
Medicare's official clinician data lists Samuel V. Thomas at 3 hospitals: UMass Memorial Health - Harrington Hospital, 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 Samuel V. Thomas see patients?
Medicare's clinician data lists 2 practice locations, including Worcester, MA. Call before your visit to confirm the address.
What is Samuel V. Thomas's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Samuel V. Thomas accept Medicare assignment?
Yes. Medicare's clinician data says Samuel V. Thomas 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 Samuel V. Thomas?
(508) 334-1000, as listed in official Medicare / NPI Registry data.
What is Samuel V. Thomas's NPI number?
1114584455. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Samuel V. Thomas works

Medicare's Facility Affiliation Data lists Samuel V. Thomas 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 Samuel V. Thomas is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Samuel V. Thomas 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 Worcester

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

All internal medicine doctors in Worcester →

Clinician information

CredentialDO
Medical schoolLiberty Univ College Of Osteopathic Medicine
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114584455
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