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

Diagnostic Radiology

John Mach, DO

Works at hospitals in Newport, RI · North Providence, RI · Providence, RI · Rhode Island

Summary

John Mach, DO (Diagnostic Radiology) is listed by Medicare at 5 hospitals in Newport, RI, North Providence, RI and Providence, RI. NPI 1104312909. 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 John Mach, 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

Diagnostic RadiologyPrimary specialty
YesAccepts Medicare assignment
8Years since medical school (graduated 2018)
University Of New England, College Of Osteo MedicineMedical school
MaleGender (as listed)
Rhode Island Medical Imaging IncGroup practice

Quick answers

Which hospitals does John Mach work at?
Medicare's official clinician data lists John Mach at 5 hospitals: Newport Hospital, Our Lady of Fatima Hospital, Rhode Island Hospital, Roger Williams Medical Center and The Miriam Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Mach see patients?
Medicare's clinician data lists 5 practice locations, including East Greenwich, RI, Attleboro, MA and Burlington, VT. Call before your visit to confirm the address.
What is John Mach's specialty?
Medicare lists Diagnostic Radiology as the primary specialty.
Does John Mach accept Medicare assignment?
Yes. Medicare's clinician data says John Mach 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 John Mach?
(401) 884-8125, as listed in official Medicare / NPI Registry data.
What is John Mach's NPI number?
1104312909. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John Mach works

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

Group practices

Medicare enrollment lists John Mach as a member of this group (CMS data updated 2026-10-02).

  • Rhode Island Medical Imaging Inc108 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Rhode Island →

Other radiologists in East Greenwich

Clinicians with the same Medicare primary specialty in East Greenwich, RI — not a recommendation.

All radiologists in East Greenwich →

Clinician information

CredentialDO
Medical schoolUniversity Of New England, College Of Osteo Medicine
Graduation year2018
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104312909
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