Roger A. Willcox, MD
Emergency Medicine Physician · Phoenix, AZ
Roger A. Willcox, MD is an emergency medicine physician with a practice address in Phoenix, Arizona, and NPI 1235157975, issued on Jul 18, 2006. Check the license (Arizona 18765, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Roger A. Willcox
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 18765 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3929 E Bell RD, Phoenix, AZ 85032
- Phone
- (602) 882-2914
- Enumerated
- Jul 18, 2006
- Record last updated
- Feb 25, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid IDs
- 387327-02 AZ
287327-03 AZ - Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,494 in Arizona → Look up another NPI →
Also registered at 3929 E Bell RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Anderson, M.D.Emergency Medicine Physician1851689384
- Autumn Armstrong, D.O.Emergency Medicine Physician1073924023
- Maria Arrey, CRNACertified Registered Nurse Anesthetist1316621675
- Bryan Barton, CRNACertified Registered Nurse Anesthetist1174244727
- Lehel Batizy, MDInternal Medicine Physician1518072446
- Sara Beckett, MDEmergency Medicine Physician1588009120
Verify Roger A. Willcox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 18765Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average emergency medicine physician in 2024
27 Medicare Part D claims, against an average of 226 among the 54,106 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.
Roger A. Willcox among 1,494 emergency medicine physician records in Arizona
Roger A. Willcox, MD 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 62% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2011 · 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).
394 emergency medicine physician records list a practice address in Phoenix
They are 394 of the 31,399 NPPES records with a practice address in Phoenix, and 1,494 emergency medicine physician records in Arizona.
All 1,494 in Arizona → Every provider in Phoenix → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jessica Anderson, M.D.Phoenix, AZ 850321851689384
- Autumn Armstrong, D.O.Phoenix, AZ 850321073924023
- Sara Beckett, MDPhoenix, AZ 850321588009120
- Jonathan Cosme Berrios, M.D.Phoenix, AZ 850321891159570
- Joseph Flanagan, MDPhoenix, AZ 850321912925991
- Eric Mann, DOPhoenix, AZ 850321134141500
- Douglas Perkins, MDPhoenix, AZ 850321306864384
- Peter Stefanski, M.D.Phoenix, AZ 850321346576758
Common questions
What is Roger A. Willcox, MD's NPI number?
Roger A. Willcox, MD's National Provider Identifier (NPI) is 1235157975, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roger A. Willcox, MD located?
The NPPES record lists a practice address at 3929 E Bell RD, Phoenix, AZ, 85032. Phone: (602) 882-2914. Providers update this record themselves, so call before visiting.
How can I verify Roger A. Willcox, MD's license?
NPPES lists Arizona license number 18765, 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 Roger A. Willcox, MD prescribe under Medicare Part D?
In 2024, Roger A. Willcox, MD had 27 Medicare Part D claims; 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.