Peter Trethewey, P.A.-C
Medical Physician Assistant · Glendale, AZ
Peter Trethewey, P.A.-C is a medical physician assistant with a practice address in Glendale, Arizona, and NPI 1700987104, issued on Sep 26, 2006. Check the license (Arizona 2138, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Peter Trethewey
- Credential
- P.A.-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 2138 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 4232 W Bell RD, Glendale, AZ 85308
- Phone
- (602) 639-4535
- Enumerated
- Sep 26, 2006
- Record last updated
- Nov 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (602) 942-4717
- Medicaid ID
- 921793 AZ
- Medicare enrollment
- Enrolled (PECOS I20121203000586); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 996 in Arizona → Look up another NPI →
Also registered at 4232 W Bell RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ana Anusic, NPFamily Nurse Practitioner1770322877
Verify Peter Trethewey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 2138Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average medical physician assistant in 2024
360 Medicare Part D claims for 246 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Prednisone69 claims
- Doxycycline Hyclate55 claims
- Amoxicillin-Clavulanate Potass27 claims
- Cephalexin25 claims
- Albuterol Sulfate Hfa16 claims
- Azithromycin15 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
- Honorhealth Urgent Care LLCPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter Trethewey among 996 medical physician assistant records in Arizona
Peter Trethewey, P.A.-C is one of 996 medical physician assistant 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 72% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated1978 · median 2012 among the 541 with a school on file
- Record last updated2014 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Arizona
There are 996 medical physician assistant records in Arizona.
All 996 in Arizona → Every provider in Glendale → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Crystal Heiligenthal, PAGlendale, AZ 853081487805628
- Laura Jones, PA-CGlendale, AZ 853081922553742
- Briana Kertesz, P.A.Glendale, AZ 853081457366148
- Shannon Kuettel, PA-CGlendale, AZ 853081124544051
- Bryan Kurec, PA-CGlendale, AZ 853081437433521
- Cristi Lee, PAGlendale, AZ 853081265613384
- Ali Lewandowski, PA-CGlendale, AZ 853081306171319
- Stephanie Ranum, PA-CGlendale, AZ 853081609269778
Common questions
What is Peter Trethewey, P.A.-C's NPI number?
Peter Trethewey, P.A.-C's National Provider Identifier (NPI) is 1700987104, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter Trethewey, P.A.-C located?
The NPPES record lists a practice address at 4232 W Bell RD, Glendale, AZ, 85308. Phone: (602) 639-4535. Providers update this record themselves, so call before visiting.
How can I verify Peter Trethewey, P.A.-C's license?
NPPES lists Arizona license number 2138, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Peter Trethewey, P.A.-C prescribe under Medicare Part D?
In 2024, Peter Trethewey, P.A.-C had 360 Medicare Part D claims for 246 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.