Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. John Charles Mach, DO

Individual provider Diagnostic Radiology Physician · NPI 1104312909

Dr. John Charles Mach, DO practises Diagnostic Radiology in Providence, Rhode Island. Graduated from University of New England, College of Osteo Medicine in 2018, 8 years ago. Practices with Rhode Island Medical Imaging Inc, a 107-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Massachusetts, Michigan, Rhode Island and Vermont.

Years since qualifying
8
Trained at
University of New England, College of Osteo Medicine
Licensed in
MA, MI, RI, VT
In the registry since
2018
Specialties on file
5
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

593 Eddy St
Providence, RI 02903-4923
Phone: (401) 432-2500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 211 Park St, Attleboro, MA 02703-3143 — (508) 222-5200
  • 123 Summer St, Worcester, MA 01608-1216 — (508) 363-6040
  • 123 Summer St, Worcester, MA 01608-1216 — (508) 363-6040
  • 4201 Saint Antoine St # St9c, Detroit, MI 48201 — (313) 745-3000

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence DO01312 (RI)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 5151014051 (MI)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 032.0134262 (VT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 275719 (MA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 295543 (MA)

Record details

NPI number1104312909
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 3, 2018
Last updated in NPPESSeptember 18, 2025
Certification dateSeptember 18, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE
Graduated 2018 (8 years in practice)
Group practice Rhode Island Medical Imaging Inc — 107 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients708
Services billed 10,267 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Rhode Island Medical Imaging Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 107 clinicians in the practice; 12 are shown here.

Other providers in Providence