Mr. Gregory Roger Grenier
D.O | Orthopedic Surgery | 10+ years Exp
Medicare Enrolled 2900 12th Ave N Ste 140w, Billings
Montana, 59101-7507
406-238-6726 406-272-3395
Maps & DirectionsMr. Gregory Roger Grenier is a Billings, Montana based orthopedic surgeon with 10 years of experience in Orthopedic Surgery. He completed his graduation from Kansas City University Of Med & Biosciences, College Of Osteo Med in 2015. He is also affiliated with hospitals like St Vincent Healthcare and . He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Mr. Gregory Roger Grenier is 98833 for Orthopedic Surgery in Montana.
Mr. Gregory Roger Grenier is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means including the patients with musculoskeletal problems which include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. Patients with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system are also concerned.
Complete Profile:
Mr. Gregory Roger Grenier speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
| Specialization: | Orthopedic - Orthopedic Surgery |
| Credentials: | D.O |
| Experience: | 10+ years |
| Medical School Attended: | Kansas City University Of Med & Biosciences, College Of Osteo Med |
| Graduation Year: | 2015 |
| Gender: | Male |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 2900 12th Ave N Ste 140w, Billings,
Montana, 59101-7507 |
| Phone: | 406-238-6726 |
| Fax: | 406-272-3395 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| PAC ID: | 9739455726 |
| Enrollment ID: | I20210914002978 |
| NPI Number: | 1134512593 |
| NPI Enumeration Date: | 10 Mar, 2015 |
| NPI Last Update On: | 06 Jan, 2023 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mr. Gregory Roger Grenier are as mentioned below.
| License Number | Specialization | State | Status | |
| 98833 | Orthopedic Surgery | Montana | Primary | |
| DR.0070117 | Orthopedic Surgery | Colorado | Secondary | |
Hospital Affiliation:
Surgeons are affiliated to many hospitals whom they worked with in the past or are presently working with. One surgeon can be affiliated to four to five hospitals at a time.
| Hospital Name (CCN) | State | Hospital Type |
| St Vincent Healthcare (270049) | Billings, MT | Acute Care Hospital |
| (270091) | | |
Group Practice:
Group practices are practice of medicine by a group of physicians who share their premises and other resources. Following list states all the group name
with which Mr. Gregory Roger Grenier is associated with along with the number of members in that group.
| Organization Name (Group PAC ID) | Members |
| Ortho Montana, Psc (5193627404) | 37 |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 2900 12th Ave N Ste 140w,
Billings, Montana |
| Zip: | 59101-7507 |
| Phone Number: | 406-238-6726 |
| Fax Number: | 406-272-3395 |
Patients can reach Mr. Gregory Roger Grenier at
2900 12th Ave N Ste 140w, Billings, Montana or can
call to book an appointment on 406-238-6726.
Comments/ Reviews:
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** Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.