Doctor profile · Federal record

Dr. Peter Trethewey, P.A.-C

Medical Physician Assistant (CMS: Physician Assistant) · Glendale, AZ

  • NPI 1700987104
  • Accepts Medicare
  • 48 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4232 W Bell RD, Suite C1
Glendale, AZ 853084027
(602) 639-4535
fax (602) 942-4717
Mailing address
1250 S Clearview Ave, Suite 100
Mesa, AZ 852093378

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
November 6, 2014
Year of graduation
1978 — 48 yrs since
Specialty taxonomy
363AM0700X — NUCC code
State license (1)
Arizona #2138
Medicaid
AZ #921793

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1700987104. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
180
Distinct HCPCS
6
Medicare allowed
$10,927
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 45 45 $74
99203 New patient office or other outpatient visit, 30-44 minutes 44 44 $93
87804 Detection test by immunoassay with direct visual observation for influenza virus 26 13 $16
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) 23 23 $41
81003 Automated urinalysis test 22 22 $2
99214 Established patient office or other outpatient visit, 30-39 minutes 20 19 $105

In context: peer comparison

Among 14 peers in Glendale Medical Physician Assistant, average services per provider: 67. This provider delivers 2.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
136
Patients
120
Total drug cost
$1,093
Drug Type Claims Patients Total cost
Prednisone Generic 36 36 $96
Doxycycline Hyclate Generic 34 34 $451
Ciprofloxacin Hcl Generic 21 19 $113
Paxlovid (Eua) (Nirmatrelvir/Ritonavir) Brand 17 17 $177
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 15 14 $157
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 13 0 $100

Frequently asked questions

Auto-generated from federal data
What is Dr. Peter Trethewey's medical specialty?
Dr. Peter Trethewey practices Medical Physician Assistant in Glendale, AZ.
Where does Dr. Peter Trethewey practice?
Dr. Peter Trethewey practices at 4232 W Bell RD, Glendale, AZ 853084027. Office phone: 6026394535.
What is Dr. Peter Trethewey's NPI?
Dr. Peter Trethewey's National Provider Identifier (NPI) is 1700987104, issued by NPPES.
Does Dr. Peter Trethewey accept Medicare assignment?
Yes. Dr. Peter Trethewey accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Peter Trethewey commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203); Detection test by immunoassay with direct visual observation for influenza virus (HCPCS 87804). Source: CMS Medicare Physician & Other Practitioners file.