IndividualActive
Gregory Grenier, D.O
NPI 1134512593 · Orthopaedic Surgery Physician · Billings, MT
Provider details
- NPI number
- 1134512593
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O
- Sex
- Male
- Sole proprietor
- No
- License
- DR.0070117 (CO)
Practice location
2900 12th Ave N Ste 140w
Billings, MT 59101-7507
Phone: (406) 238-6726
Fax: (406) 272-3395
Mailing address
2900 12th Ave N Ste 140w
Billings, MT 59101-7507
Registry dates
- Enumerated
- 2015-03-10
- Last updated
- 2023-01-06
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.