Are you Dr. Willstein? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 2360 Mullan Rd, Ste C, Missoula, MT 59808
About Dr. Willstein
Gary J. Willstein, MD is a healthcare provider in Missoula, MT specializing in orthopaedic surgery. Medicare claims data shows Gary provided 12,300 services to 1,195 patients. The services billed most often include injection, methylprednisolone acetate, 1 mg, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1932154671.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (406) 721-4436
- Email not available
Practice Locations
2360 MULLAN RD STE C
Missoula, MT 59808
Conditions Commonly Evaluated or Treated
Within Orthopedic Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Elbow, hand, and wrist
Foot and ankle
Hip
Shoulder
Sports and soft tissue
Trauma and bone
Foot & Ankle
Spine
Procedures & services
Most searched procedures
Evaluation and nonsurgical
Arthroscopy
Foot & Ankle
Foot and ankle
Hand & Wrist
Hand and upper extremity
Injections & Non-Surgical
Injections & pain relief
Joint replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Knee
Shoulder surgery
Trauma & Fractures
Trauma and fixation
Procedures Most Often Billed to Medicare
12,300 services · 1,195 patients · 18 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
171 | More often than most peers in Orthopaedic Surgery |
| Replacement of knee joint, both sides of knee | Procedure | 27447 |
40 | More often than most peers in Orthopaedic Surgery |
| Prosthetic repair of shoulder joint, total shoulder | Procedure | 23472 |
40 | More often than most peers in Orthopaedic Surgery |
| Replacement of thigh bone and hip joint with prosthesis | Procedure | 27130 |
17 | Less often than most peers in Orthopaedic Surgery |
| Removal of knee cartilage using an endoscope | Procedure | 29881 |
12 | Less often than most peers in Orthopaedic Surgery |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
170 | More often than most peers in Orthopaedic Surgery |
| X-ray of knee, 4 or more views | Imaging | 73564 |
91 | As often as other peers in Orthopaedic Surgery |
| X-ray of knee, 3 views | Imaging | 73562 |
72 | As often as other peers in Orthopaedic Surgery |
| X-ray of hip, 2-3 views | Imaging | 73502 |
63 | As often as other peers in Orthopaedic Surgery |
| Mri scan of leg joint without contrast | Imaging | 73721 |
16 | Less often than most peers in Orthopaedic Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other orthopaedic surgeons at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 4 related providers in 2 groups
Other orthopaedic surgeons in Missoula 3
Same specialty, same city.
Also performs Aspiration and/or injection of fluid from large joint 1
Providers in MT who bill this service to Medicare most often.
Common questions
What is Dr. Willstein's specialty?
Dr. Willstein is an orthopaedic surgeon in Missoula, MT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Surgery”.
NPI registry
Where can I find Dr. Willstein?
Dr. Willstein is listed at 2360 Mullan Rd Ste C, Missoula, MT 59808. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Willstein?
The number on file is (406) 721-4436. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Willstein?
Dr. Willstein's National Provider Identifier is 1932154671. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Dr. Willstein have?
Dr. Willstein has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. Willstein known for?
According to Medicare billing data, Dr. Willstein performs procedures including aspiration and/or injection of fluid from large joint, replacement of knee joint, both sides of knee and prosthetic repair of shoulder joint, total shoulder; reads or performs imaging such as x-ray of shoulder, minimum of 2 views and x-ray of knee, 4 or more views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Willstein's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Willstein. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.