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

Gerald L Oldham, MD

Individual provider Internal Medicine Physician · NPI 1235176207

Gerald L Oldham, MD practises Internal Medicine in Peoria, Arizona. Graduated from University of Arkansas College of Medicine in 1976, 50 years ago. Practices with Banner Primary Care Physicians Arizona LLC, a 237-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
50
Trained at
University of Arkansas College of Medicine
Licensed in
AZ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

13640 N Plaza Del Rio Blvd Ste 220
Peoria, AZ 85381-4846 Not confirmed with CMS for 18 years — call before visiting
Phone: (623) 876-3850
Fax: (623) 876-3809
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 10076 (AZ)

Record details

NPI number1235176207
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 31, 2006
Last updated in NPPESJanuary 24, 2008

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE
Graduated 1976 (50 years in practice)
Group practice Banner Primary Care Physicians Arizona Llc — 237 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients368
Services billed 1,157 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

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 Banner Primary Care Physicians Arizona LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 237 clinicians in the practice; 12 are shown here.

Other providers in Peoria