About
GREGORY GRENIER, D.O is an orthopedic surgery located at 2900 12TH AVE N STE 140W in BILLINGS, MT.
Gregory Grenier is one of 36 orthopedic providers listed in BILLINGS, MT on AdvOrtho.
Practice at a glance
Gregory Grenier's most frequently billed Medicare service in 2024 was incision of tendon covering of finger for 12 Medicare patients.
Distinct procedures
2
Medicare patients
68
busiest single service
Care setting
91% office
mostly outpatient
Most-performed procedures, 2024
Incision of tendon covering of finger
16
12 patients · below the state median of 40
Release and/or relocation of hand nerve
15
12 patients · below the state median of 32
Training and practice
Gregory Grenier has been in practice since 2015.
- Practices with Catholic Health Initiatives Colorado (1,230 clinicians)
- Affiliated with Mercy Regional Medical Center and San Juan Regional Medical Center Inc
Registry record
- Licensed in Colorado and Montana - licensed beyond the practice state, which roughly one in five providers here is
- Practices within a group or organization
Where this comes from
Procedure volumes:CMS Medicare Physician & Other Practitioners, 2024. Fee-for-service claims only, so they exclude privately insured, Medicare Advantage and pediatric patients - volume is not comparable across practices with different patient mixes. These are billing records, not outcomes.
Training and practice: CMS Doctors and Clinicians list. A graduation year is when training finished, not years of orthopedic experience or a board certification. Affiliations come from Medicare enrollment and may be incomplete.
Registry details: NPPES. Subspecialties are self-reported at registration, not a board certification.
Credentials: Doctor of Osteopathic Medicine (DO)
A DO degree indicates completion of an osteopathic medical program, which includes the same medical training as an MD with additional emphasis on the musculoskeletal system and osteopathic manipulative treatment. DOs are fully licensed physicians who can prescribe medication, perform surgery, and specialize in any medical field including orthopedic surgery.
Office Information
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Profile information is sourced from the public CMS NPI Registry. Contact the office directly to confirm current availability and insurance acceptance. Providers can update this profile to reflect their current practice.
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