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Edit this profileWhere to find Gregory R. Grenier, D.O
- Billings location main office
2900 12Th Ave N Ste 140W, Billings, MT 59101 - Durango location
1 Mercado St Ste 202, Durango, CO 81301
About Dr. Grenier
Gregory R. Grenier, D.O practices orthopedic surgery in Billings, MT. Gregory is also listed as specializing in orthopaedic surgery. Medicare claims data shows Gregory provided 377 services to 285 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and x-ray of shoulder, minimum of 2 views. The provider's National Provider Identifier (NPI) is 1134512593.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
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) 238-6726
- Email not available
Practice Locations
2900 12TH AVE N STE 140W
Billings, MT 59101
1 Mercado St Ste 202
Durango, CO 81301
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
377 services · 285 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Incision of tendon covering of finger | Procedure | 26055 |
16 | Less often than most peers in Orthopedic Surgery |
| Release and/or relocation of hand nerve | Procedure | 64721 |
15 | Less often than most peers in Orthopedic Surgery |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
53 | As often as other peers in Orthopedic Surgery |
| X-ray of finger, minimum of 2 views | Imaging | 73140 |
21 | Less often than most peers in Orthopedic Surgery |
| X-ray of hand, minimum of 3 views | Imaging | 73130 |
17 | Less often than most peers in Orthopedic Surgery |
| X-ray of wrist, minimum of 3 views | Imaging | 73110 |
17 | Less often than most peers in Orthopedic Surgery |
| Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | Drug given | J0702 |
37 | Less often than most peers in Orthopedic Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
93 | As often as other peers in Orthopedic Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
59 | As often as other peers in Orthopedic Surgery |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
20 | As often as other peers in Orthopedic 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.
Related specialists at this location 1
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.
Other orthopedic surgeons in Billings 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2015 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Incision of tendon covering of finger 7
Providers in MT who bill this service to Medicare most often.
Common questions
What does Gregory R. Grenier specialize in?
Gregory R. Grenier is an orthopedic surgeon in Billings, MT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopedic Surgery”.
NPI registry
Where is Gregory R. Grenier located?
Gregory R. Grenier is listed at 2900 12Th Ave N Ste 140W, Billings, MT 59101. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Gregory R. Grenier's phone number?
The number on file is (406) 238-6726. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Gregory R. Grenier?
Gregory R. Grenier's National Provider Identifier is 1134512593. 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
Where did Gregory R. Grenier train?
Gregory R. Grenier attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Gregory R. Grenier have?
Gregory R. Grenier has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What does Gregory R. Grenier do most often?
According to Medicare billing data, Gregory R. Grenier performs procedures including incision of tendon covering of finger and release and/or relocation of hand nerve; reads or performs imaging such as x-ray of shoulder, minimum of 2 views and x-ray of finger, minimum of 2 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Gregory R. Grenier's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Gregory R. Grenier. If this is you, claiming it is free.
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