Thomas A. Ateshim, MD
Internal Medicine Physician · Peoria, AZ
Thomas A. Ateshim, MD is an internal medicine physician with a practice address in Peoria, Arizona, and NPI 1144392143, issued on Nov 14, 2006. Check the license (Arizona 30854, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thomas A. Ateshim
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 30854 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 13350 N 94TH Dr, Peoria, AZ 85381
- Phone
- (623) 974-1500
- Enumerated
- Nov 14, 2006
- Record last updated
- Sep 3, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (623) 933-3383
- Medicaid ID
- 727373 AZ
- Medicare enrollment
- Enrolled (PECOS I20040715001324); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 13350 N 94TH Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas A. Ateshim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 30854Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,969 Medicare Part D claims for 202 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Lisinopril144 claims
- Atorvastatin Calcium128 claims
- Rosuvastatin Calcium121 claims
- Levothyroxine Sodium80 claims
- Metformin Hcl78 claims
- Amlodipine Besylate69 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Affiliated Internal Medicine Associates LLCPeoria, AZ
- Dvma LLCPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas A. Ateshim among 2,853 internal medicine physician records in Arizona
Thomas A. Ateshim, MD is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1991 · median 2003 among the 1,643 with a school on file
- Record last updated2010 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
58 internal medicine physician records list a practice address in Peoria
They are 58 of the 2,528 NPPES records with a practice address in Peoria, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Peoria → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Avtar Bassin, MDPeoria, AZ 853811013998335
- David Engel, MDPeoria, AZ 853811538106570
- John Kieley, MDPeoria, AZ 853811649279654
- Gary Mort, DOPeoria, AZ 853811477554608
- Gerald Oldham, MDPeoria, AZ 853811235176207
- Kulbhushan Paul, MDPeoria, AZ 853811376532127
Common questions
What is Thomas A. Ateshim, MD's NPI number?
Thomas A. Ateshim, MD's National Provider Identifier (NPI) is 1144392143, issued on Nov 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas A. Ateshim, MD located?
The NPPES record lists a practice address at 13350 N 94TH Dr, Peoria, AZ, 85381. Phone: (623) 974-1500. Providers update this record themselves, so call before visiting.
How can I verify Thomas A. Ateshim, MD's license?
NPPES lists Arizona license number 30854, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas A. Ateshim, MD prescribe under Medicare Part D?
In 2024, Thomas A. Ateshim, MD had 1,969 Medicare Part D claims for 202 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.