Duke Keller, D.O
Emergency Medicine Physician · Mesa, AZ
Duke Keller, D.O is an emergency medicine physician with a practice address in Mesa, Arizona, and NPI 1760825566, issued on Apr 10, 2013. Check the license (Arizona 007356, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Duke Keller
- Credential
- D.O
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 007356 AZ
5315066555 MI
SH848782 OH
Self-reported in NPPES; status is on the state search - Practice location
- 6644 E Baywood Ave, Mesa, AZ 85206
- Phone
- (480) 321-2000
- Enumerated
- Apr 10, 2013
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170714001600); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2013
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,494 in Arizona → Look up another NPI →
Also registered at 6644 E Baywood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Firas Abbas, M.D. M.P.H.Internal Medicine Physician1336481407
- Hassan Abbas, D.O.Internal Medicine Physician1477294775
- Jose Acosta, RPARadiology Practitioner Assistant1376721076
- Melissa Albers, CRNACertified Registered Nurse Anesthetist1386183481
- Maria Alexov, M.D.Infectious Disease Physician1952361271
- Ayman Alhadheri, MDEmergency Medicine Physician1184205403
Verify Duke Keller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 007356Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average emergency medicine physician in 2024
89 Medicare Part D claims for 64 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin14 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 one group practice
- Tec Emergency Physicians OF Arizona, LLCGilbert, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Duke Keller among 1,494 emergency medicine physician records in Arizona
Duke Keller, D.O is one of 1,494 emergency medicine physician records with a practice address in Arizona. 79% 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 57% of them.
- NPI issued2013 · 57% of these records are older, 39% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2013 · median 2014 among the 828 with a school on file
- Record last updated2018 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Arizona
There are 1,494 emergency medicine physician records in Arizona.
All 1,494 in Arizona → Every provider in Mesa → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ayman Alhadheri, MDMesa, AZ 852061184205403
- Bryant Boyack, DOMesa, AZ 852061902008956
- Dawn Brokaw, MDMesa, AZ 852061386618809
- Syna Daudfar, DOMesa, AZ 852061124521976
- Betty Dinarte, M.D.Mesa, AZ 852061538371752
- Thomas Kupka, M.D.Mesa, AZ 852061982632055
- Catherine Nolan, DOMesa, AZ 852061659385995
- Connor Ohmart, MDMesa, AZ 852061467957951
Common questions
What is Duke Keller, D.O's NPI number?
Duke Keller, D.O's National Provider Identifier (NPI) is 1760825566, issued on Apr 10, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Duke Keller, D.O located?
The NPPES record lists a practice address at 6644 E Baywood Ave, Mesa, AZ, 85206. Phone: (480) 321-2000. Providers update this record themselves, so call before visiting.
How can I verify Duke Keller, D.O's license?
NPPES lists Arizona license number 007356, 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 Duke Keller, D.O prescribe under Medicare Part D?
In 2024, Duke Keller, D.O had 89 Medicare Part D claims for 64 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.