Doctor profile · Federal record

Dr. OIVIND WESTERENG, PA-C

Physician Assistant · MISSOULA, MT

  • NPI 1295044394
  • Accepts Medicare
  • MIPS 85.4 / 100 · 2023
  • 16 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3624 BROOKS ST STE 101
MISSOULA, MT 598017338
(888) 227-3312
Additional location
3075 N Reserve St Ste Q
Missoula, MT 598081390
(406) 327-1750
fax (406) 327-1960
Mailing address
PO BOX 2928
PORTLAND, OR 972082928

Credentials & registration

NPPES · NUCC
NPI registered
October 2010 — 16 yrs on file
Profile last updated
April 22, 2024
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Montana #628

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1295044394. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
564
Distinct HCPCS
10
Medicare allowed
$35,600
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 314 302 $77
81003 Automated urinalysis test 54 53 $2
99214 Established patient office or other outpatient visit, 30-39 minutes 47 46 $107
99203 New patient office or other outpatient visit, 30-44 minutes 43 43 $96
71046 X-ray of chest, 2 views 26 26 $24
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 21 21 $35
94640 Inhalation treatment for airway obstruction or sputum production 13 13 $8
87651 Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique 12 11 $34
J7620 Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme 12 12 $0
69209 Removal of impacted ear wax by washing 11 11 $16

In context: peer comparison

Among 37 peers in this city , average services per provider: 65. This provider delivers 8.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
181
Patients
164
Total drug cost
$2,007
Drug Type Claims Patients Total cost
Paxlovid (Eua) (Nirmatrelvir/Ritonavir) Brand 30 30 $295
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 28 28 $317
Azithromycin Generic 21 19 $109
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 21 20 $101
Cephalexin Generic 17 17 $137
Prednisone Generic 15 15 $24
Fluconazole Generic 13 0 $87
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 12 11 $566
Doxycycline Hyclate Generic 12 12 $196
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 12 12 $177