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Individual provider Active NPI

Gregory Roger Grenier, D.O

  • Orthopaedic Surgery Physician
  • Billings, MT
National Provider Identifier
1134512593
Registry record updated Jan 6, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Surgery PhysicianTaxonomy code 207X00000X
License
98833 Issued in MT
Practice address
2900 12TH Ave N Ste 140W
Billings, MT 59101-7507
Phone
(406) 238-6726
Fax
(406) 272-3395
NPI assigned
Mar 10, 2015
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 6, 2023

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Orthopaedic Surgery Physician 207X00000X DR.0070117 CO
Orthopaedic Surgery Physician 207X00000X 98833 MT Primary

Addresses

Primary practice location

2900 12TH Ave N Ste 140W
Billings, MT 59101-7507

Mailing address

2900 12TH Ave N Ste 140W
Billings, MT 59101-7507
Phone (406) 238-6726

Other practice location 1

1 Mercado St Ste 202
Durango, CO 81301-7307
Phone (970) 764-9400

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20230119002368 CO Practitioner - Orthopedic Surgery 9739455726 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic Surgery
Education
Other, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Catholic Health Initiatives ColoradoGroup PAC ID 8022927342, 1,230 clinicians

Practice addresses (Care Compare)

1 Mercado St
Suite 202
Durango, CO 81301-7307
Phone (970) 764-9400

Hospital & facility affiliations

  • Mercy Regional Medical Center Hospital, Durango, CO, CCN 060013
  • San Juan Regional Medical Center Inc Hospital, Farmington, NM, CCN 320005

Procedures performed for Medicare patients

ProcedureNumber of procedures
Lower limb (leg) arthroscopy (minimally invasive joint repair)1-10
Upper limb (arm) arthroscopy (minimally invasive joint repair)1-10
Melanoma (skin cancer) excision1-10
Removal of tissue1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
DR.0070117COMDOrthopaedic Surgery Physician
98833MTMDOrthopaedic Surgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Catholic Health Initiatives Colorado CurrentSince Jan 4, 2023 Accepting new patients
Catholic Health Initiatives Colorado Orthopaedic Surgery CurrentSince Jan 4, 2023 Accepting new patients
Catholic Health Initiatives Colorado Current Accepting new patients
Frances Mahon Deaconess Hospital Past Accepting new patients
Catholic Health Initiatives Colorado Past Accepting new patients

Locations

9100 E Mineral Cir
Centennial, CO 80112
Phone (303) 561-5193

1 Mercado St
Ste 202
Durango, CO 81301
Phone (970) 247-5362

41 State Highway 67
Woodland Park, CO 80863
Phone (719) 686-0551

Organizations & group practices 5

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 6

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1425945600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1672963200000",
    "number": "1134512593",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2900 12TH AVE N STE 140W",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591017507",
            "telephone_number": "406-238-6726",
            "fax_number": "406-272-3395"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2900 12TH AVE N STE 140W",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591017507",
            "telephone_number": "406-238-6726",
            "fax_number": "406-272-3395"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Mercado St Ste 202",
            "address_purpose": "LOCATION",
            "city": "Durango",
            "state": "CO",
            "postal_code": "813017307",
            "country_code": "US",
            "telephone_number": "970-764-9400",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GRENIER",
        "first_name": "GREGORY",
        "middle_name": "ROGER",
        "name_prefix": "Mr.",
        "credential": "D.O",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-03-10",
        "last_updated": "2023-01-06",
        "certification_date": "2023-01-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "CO",
            "license": "DR.0070117",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "MT",
            "license": "98833",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Billings, MT

Sources for this page

Verify at the official NPI Registry.