Peter Trethewey, P.A.-C
NPI 1700987104 · Medical Physician Assistant · Glendale, AZ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Trethewey, P.A.-C is a Medical Physician Assistant provider in Glendale, AZ (NPI 1700987104).
Provider details
- NPI number
- 1700987104
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.-C
- Sex
- Male
- Sole proprietor
- No
- License
- 2138 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
249 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 89 | $73 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 54 | $91 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 28 | $16 |
| Urinalysis, Manual Test81002 | 24 | $3 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 24 | $133 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 69 | 66 |
| Doxycycline Hyclate | 55 | 55 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 27 | 27 |
| Cephalexin | 25 | 24 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 16 | — |
| Azithromycin | 15 | 15 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-26
- Last updated
- 2014-11-06
Frequently asked questions
- What is Peter Trethewey's NPI number?
- Peter Trethewey's National Provider Identifier (NPI) is 1700987104, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Trethewey's specialty?
- Peter Trethewey is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Peter Trethewey located?
- Peter Trethewey's practice location on file with NPPES is 4232 W Bell Rd, Glendale, AZ 85308-4027.
- What is Peter Trethewey's phone number?
- The practice phone number listed in the NPPES registry for Peter Trethewey is (602) 639-4535.
- Does Peter Trethewey accept Medicare?
- Peter Trethewey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Trethewey's NPI active?
- Yes — Peter Trethewey's NPI (1700987104) is active in the NPPES registry as of the last update on 2014-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.