Quick answers
- Where does Peter L. Trethewey see patients?
- Medicare's clinician data lists 6 practice locations, including Fountain Hills, AZ, Phoenix, AZ and Anthem, AZ. Call before your visit to confirm the address.
- What is Peter L. Trethewey's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Peter L. Trethewey accept Medicare assignment?
- Yes. Medicare's clinician data says Peter L. Trethewey accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Peter L. Trethewey?
- (480) 587-5910, as listed in official Medicare / NPI Registry data.
- What is Peter L. Trethewey's NPI number?
- 1700987104. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Peter L. Trethewey is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 16716 E Palisades Blvd, Suite 101bFountain Hills, AZ 85268 (480) 587‑5910
- 17015 N 7th St, Suite 100Phoenix, AZ 85022 (602) 368‑1403
- 18404 N Tatum Blvd, Suite 101cPhoenix, AZ 85032 (602) 992‑1900
- 3648 W Anthem Way, Bldg A 100cAnthem, AZ 85086 (623) 434‑6444
- 4501 E Thomas Rd, Suite 101Phoenix, AZ 85018 (602) 808‑8786
Group practices
Medicare enrollment lists Peter L. Trethewey as a member of this group (CMS data updated 2026-10-02).
- HonorHealth Urgent Care LLC100 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Fountain Hills
Clinicians with the same Medicare primary specialty in Fountain Hills, AZ — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1700987104 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians