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 Missoula Physician Assistant, 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

Frequently asked questions

Auto-generated from federal data
What is Dr. Oivind Westereng's medical specialty?
Dr. Oivind Westereng practices Physician Assistant in Missoula, MT.
Where does Dr. Oivind Westereng practice?
Dr. Oivind Westereng practices at 3624 Brooks St Ste 101, Missoula, MT 598017338. Office phone: 8882273312.
What is Dr. Oivind Westereng's NPI?
Dr. Oivind Westereng's National Provider Identifier (NPI) is 1295044394, issued by NPPES.
Does Dr. Oivind Westereng accept Medicare assignment?
Yes. Dr. Oivind Westereng accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Oivind Westereng commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Automated urinalysis test (HCPCS 81003); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.