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Internal Medicine

John Shield, MD

Works at hospitals in Sonora, CA · Clinton, IN · Terre Haute, IN · California, Indiana

Summary

John Shield, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Sonora, CA, Clinton, IN and Terre Haute, IN. NPI 1033189634. 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 Shield, 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
46Years since medical school (graduated 1980)
MaleGender (as listed)
Union Associated Physicians Clinic, LLCGroup practice (+1 more)

Quick answers

Which hospitals does John Shield work at?
Medicare's official clinician data lists John Shield at 3 hospitals: Adventist Health Sonora, Union Hospital Clinton and Union Hospital Inc. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Shield see patients?
Medicare's clinician data lists 3 practice locations, including Terre Haute, IN and Clinton, IN. Call before your visit to confirm the address.
What is John Shield's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does John Shield accept Medicare assignment?
Yes. Medicare's clinician data says John Shield 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 Shield?
(812) 234-1344, as listed in official Medicare / NPI Registry data.
What is John Shield's NPI number?
1033189634. 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 Shield works

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

Group practices

Medicare enrollment lists John Shield as a member of these groups (CMS data updated 2026-10-02).

  • Union Associated Physicians Clinic, LLC230 clinicians in the group
  • Valley Professionals Community Health Center Inc70 clinicians in the group

Specialties

Find other Internal Medicine doctors in Indiana →

Other internal medicine doctors in Terre Haute

Clinicians with the same Medicare primary specialty in Terre Haute, IN — not a recommendation.

All internal medicine doctors in Terre Haute →

Clinician information

CredentialMD
Graduation year1980
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1033189634
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