Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Thomas A Ateshim, MD

Individual provider Internal Medicine Physician · NPI 1144392143

Thomas A Ateshim, MD is an Internal Medicine in Peoria, Arizona. Qualified in 1991, 35 years ago. Practices with Affiliated Internal Medicine Associates LLC, a 4-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
35
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

13350 N 94th Dr Ste A101
Peoria, AZ 85381-4826
Phone: (623) 974-1500
Fax: (623) 933-3383
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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 30854 (AZ)

Record details

NPI number1144392143
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 14, 2006
Last updated in NPPESSeptember 3, 2010

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Affiliated Internal Medicine Associates Llc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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