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Diagnostic Radiology

John Ritter, MD

Works at hospitals in Brady, TX · Sonora, TX · San Angelo, TX · Texas

Summary

John Ritter, MD (Diagnostic Radiology) is listed by Medicare at 3 hospitals in Brady, TX, Sonora, TX and San Angelo, TX. NPI 1013187772. 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 Ritter, 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
28Years since medical school (graduated 1998)
University Of Florida College Of MedicineMedical school
MaleGender (as listed)
Shannon ClinicGroup practice

Quick answers

Which hospitals does John Ritter work at?
Medicare's official clinician data lists John Ritter at 3 hospitals: Heart of Texas Memorial Hospital, Lillian M Hudspeth Memorial Hospital and Shannon Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Ritter see patients?
Medicare's clinician data lists 1 practice location in San Angelo, TX. Call before your visit to confirm the address.
What is John Ritter's specialty?
Medicare lists Diagnostic Radiology as the primary specialty.
Does John Ritter accept Medicare assignment?
Yes. Medicare's clinician data says John Ritter 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 Ritter?
(325) 747-1511, as listed in official Medicare / NPI Registry data.
What is John Ritter's NPI number?
1013187772. 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 Ritter works

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

Group practices

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

  • Shannon Clinic559 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Texas →

Other radiologists in San Angelo

Clinicians with the same Medicare primary specialty in San Angelo, TX — not a recommendation.

All radiologists in San Angelo →

Clinician information

CredentialMD
Medical schoolUniversity Of Florida College Of Medicine
Graduation year1998
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1013187772
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