Gene M. Winfield, D.O.
Internal Medicine Physician · Tempe, AZ
Gene M. Winfield, D.O. is an internal medicine physician with a practice address in Tempe, Arizona, and NPI 1548258122, issued on Oct 7, 2005. Check the license (Arizona 3878, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gene M. Winfield
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 3878 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 2307 S Rural RD, Tempe, AZ 85282
- Phone
- (480) 557-0051
- Enumerated
- Oct 7, 2005
- Record last updated
- Mar 29, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (480) 557-0189
- Medicaid ID
- 809668 AZ
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 2307 S Rural RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Margaret Komar, RNPAdult Health Nurse Practitioner1710282330
Verify Gene M. Winfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 3878Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
55 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Gene M. Winfield among 2,853 internal medicine physician records in Arizona
Gene M. Winfield, D.O. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2013 · 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).
Internal Medicine Physician providers in Arizona
There are 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Tempe → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Feras AldaoudTempe, AZ 852821285801019
- Kenneth Anaeme, MDTempe, AZ 852821386618650
- Kimberly Bader, MDTempe, AZ 852821245223833
- Sadek Ebeid, MDTempe, AZ 852821255340816
- Romen Jha, MDTempe, AZ 852821144262072
- Karen Leber, MDTempe, AZ 852821942232582
- David Mickus, MDTempe, AZ 852821871599688
- Saeid Mohammadi, M.D.Tempe, AZ 852821194712950
Common questions
What is Gene M. Winfield, D.O.'s NPI number?
Gene M. Winfield, D.O.'s National Provider Identifier (NPI) is 1548258122, issued on Oct 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gene M. Winfield, D.O. located?
The NPPES record lists a practice address at 2307 S Rural RD, Tempe, AZ, 85282. Phone: (480) 557-0051. Providers update this record themselves, so call before visiting.
How can I verify Gene M. Winfield, D.O.'s license?
NPPES lists Arizona license number 3878, 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 Gene M. Winfield, D.O. prescribe under Medicare Part D?
In 2024, Gene M. Winfield, D.O. had 55 Medicare Part D claims; 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.