Doctor profile · Federal record

Dr. Gary Willstein, MD

Orthopaedic Surgery Physician · Missoula, MT

  • NPI 1932154671
  • MIPS 75.0 / 100 · 2023
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2360 Mullan RD, Ste C
Missoula, MT 598081811
(406) 721-4436
fax (406) 721-3907

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
August 26, 2014
Specialty taxonomy
207X00000X — NUCC code
State license (1)
Montana #9552
Medicaid
MT #0028002

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1932154671. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,435
Distinct HCPCS
10
Medicare allowed
$211,436
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 212 201 $126
99213 Established patient office or other outpatient visit, 20-29 minutes 208 168 $89
J1040 Injection, methylprednisolone acetate, 80 mg 162 109 $12
20610 Aspiration and/or injection of fluid from large joint 146 121 $70
73030 X-ray of shoulder, minimum of 2 views 137 103 $35
99212 Established patient office or other outpatient visit, 10-19 minutes 102 82 $56
73502 X-ray of hip, 2-3 views 92 71 $47
73564 X-ray of knee, 4 or more views 90 72 $46
73562 X-ray of knee, 3 views 83 67 $41
99203 New patient office or other outpatient visit, 30-44 minutes 44 44 $109

In context: peer comparison

Among 7 peers in Missoula Orthopaedic Surgery Physician, average services per provider: 90. This provider delivers 16× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$343
Transactions
3
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Stryker Corporation 3 $343.42

By nature of payment

Food and Beverage
$343

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
213
Patients
142
Total drug cost
$2,970
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 51 41 $477
Celecoxib Generic 49 34 $1,440
Meloxicam Generic 46 28 $332
Methocarbamol Generic 32 23 $196
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 19 16 $282
Gabapentin Generic 16 0 $244

Frequently asked questions

Auto-generated from federal data
What is Dr. Gary Willstein's medical specialty?
Dr. Gary Willstein practices Orthopaedic Surgery Physician in Missoula, MT.
Where does Dr. Gary Willstein practice?
Dr. Gary Willstein practices at 2360 Mullan RD, Missoula, MT 598081811. Office phone: 4067214436.
What is Dr. Gary Willstein's NPI?
Dr. Gary Willstein's National Provider Identifier (NPI) is 1932154671, issued by NPPES.
What procedures does Dr. Gary Willstein commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Injection, methylprednisolone acetate, 80 mg (HCPCS J1040). Source: CMS Medicare Physician & Other Practitioners file.