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Internal Medicine

Gerald L. Oldham, MD

Works at hospitals in Sun City West, AZ · Arizona

Summary

Gerald L. Oldham, MD (Internal Medicine) is listed by Medicare at 1 hospital in Sun City West, AZ. NPI 1235176207. 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 Gerald L. Oldham, 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
50Years since medical school (graduated 1976)
University Of Arkansas College Of MedicineMedical school
MaleGender (as listed)
Banner Primary Care Physicians Arizona LLCGroup practice

Quick answers

Which hospitals does Gerald L. Oldham work at?
Medicare's official clinician data lists Gerald L. Oldham at 1 hospital: Banner del E. Webb Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Gerald L. Oldham see patients?
Medicare's clinician data lists 1 practice location in Peoria, AZ. Call before your visit to confirm the address.
What is Gerald L. Oldham's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Gerald L. Oldham accept Medicare assignment?
Yes. Medicare's clinician data says Gerald L. Oldham 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 Gerald L. Oldham?
(623) 876-3800, as listed in official Medicare / NPI Registry data.
What is Gerald L. Oldham's NPI number?
1235176207. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Gerald L. Oldham works

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

Group practices

Medicare enrollment lists Gerald L. Oldham as a member of this group (CMS data updated 2026-10-02).

  • Banner Primary Care Physicians Arizona LLC239 clinicians in the group

Specialties

Find other Internal Medicine doctors in Arizona →

Other internal medicine doctors in Peoria

Clinicians with the same Medicare primary specialty in Peoria, AZ — not a recommendation.

All internal medicine doctors in Peoria →

Clinician information

CredentialMD
Medical schoolUniversity Of Arkansas College Of Medicine
Graduation year1976
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1235176207
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