Peter Stefanski, M.D.
Emergency Medicine Physician · Phoenix, AZ
Peter Stefanski, M.D. is an emergency medicine physician with a practice address in Phoenix, Arizona, and NPI 1346576758, issued on Oct 20, 2009. Check the license (Arizona R70206, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Peter Stefanski
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- R70206 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3929 E Bell RD, Phoenix, AZ 85032
- Phone
- (602) 923-5622
- Enumerated
- Oct 20, 2009
- Record last updated
- Sep 25, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110803000840); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2008
- 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 Peter Stefanski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license R70206Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average emergency medicine physician in 2024
19 Medicare Part D claims for 16 beneficiaries, 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.
Bills Medicare through one group practice
- Emergency Physicians Southwest PCFort Mohave, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter Stefanski among 1,494 emergency medicine physician records in Arizona
Peter Stefanski, M.D. 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 2009, is newer than 48% of them.
- NPI issued2009 · 48% of these records are older, 50% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2008 · median 2014 among the 828 with a school on file
- Record last updated2019 · 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
- Roger Willcox, MDPhoenix, AZ 850321235157975
Common questions
What is Peter Stefanski, M.D.'s NPI number?
Peter Stefanski, M.D.'s National Provider Identifier (NPI) is 1346576758, issued on Oct 20, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Peter Stefanski, M.D. located?
The NPPES record lists a practice address at 3929 E Bell RD, Phoenix, AZ, 85032. Phone: (602) 923-5622. Providers update this record themselves, so call before visiting.
How can I verify Peter Stefanski, M.D.'s license?
NPPES lists Arizona license number R70206, 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 Peter Stefanski, M.D. prescribe under Medicare Part D?
In 2024, Peter Stefanski, M.D. had 19 Medicare Part D claims for 16 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.