Aaron T. Saunders, MD
Internal Medicine Physician · Phoenix, AZ
Aaron T. Saunders, MD is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1902148208, issued on Mar 25, 2013. Check the license (Arizona 57930, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Aaron T. Saunders
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 57930 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 4420 E Mcdowell RD, Phoenix, AZ 85008
- Phone
- (602) 858-4295
- Enumerated
- Mar 25, 2013
- Record last updated
- Aug 13, 2025
- Fax
- (480) 906-2177
- Medicare enrollment
- Enrolled (PECOS I20201014001050); may accept Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 4420 E Mcdowell RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Aaron T. Saunders in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 57930Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,392 Medicare Part D claims for 357 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 56 claims were for opioids.
Most prescribed
- Atorvastatin Calcium189 claims
- Levothyroxine Sodium114 claims
- Gabapentin89 claims
- Lisinopril89 claims
- Amlodipine Besylate88 claims
- Trazodone Hcl83 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.
Aaron T. Saunders among 2,853 internal medicine physician records in Arizona
Aaron T. Saunders, 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 2013, is newer than 66% of them.
- NPI issued2013 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2013 · median 2003 among the 1,643 with a school on file
- Record last updated2025 · 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).
695 internal medicine physician records list a practice address in Phoenix
They are 695 of the 31,399 NPPES records with a practice address in Phoenix, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Phoenix → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sunitha Bandlamuri, MDPhoenix, AZ 850081366496812
- Bhagyashree Barlingay, MDPhoenix, AZ 850081558322081
- Stephanie Berkshire, DOPhoenix, AZ 850081003853078
- Steve Kaplan, M.D.Phoenix, AZ 850081568418457
- Mohammed Khan, MDPhoenix, AZ 850081245270347
- Jasminder Mand, MDPhoenix, AZ 850081720021454
- Stephen Meenahan, DOPhoenix, AZ 850081396785036
- Lakshmi Murthy, MDPhoenix, AZ 850081588604128
Common questions
What is Aaron T. Saunders, MD's NPI number?
Aaron T. Saunders, MD's National Provider Identifier (NPI) is 1902148208, issued on Mar 25, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Aaron T. Saunders, MD located?
The NPPES record lists a practice address at 4420 E Mcdowell RD, Phoenix, AZ, 85008. Phone: (602) 858-4295. Providers update this record themselves, so call before visiting.
How can I verify Aaron T. Saunders, MD's license?
NPPES lists Arizona license number 57930, 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 Aaron T. Saunders, MD prescribe under Medicare Part D?
In 2024, Aaron T. Saunders, MD had 2,392 Medicare Part D claims for 357 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.