NPIMap

Individual provider Active NPI

Gregory S Tierney, M.D.

  • Sports Medicine (Orthopaedic Surgery) Physician
  • Great Falls, MT
National Provider Identifier
1679519870
Registry record updated Apr 5, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Sports Medicine (Orthopaedic Surgery) PhysicianTaxonomy code 207XX0005X
License
7579 Issued in MT
Practice address
1401 25TH St S
Great Falls, MT 59405-5183
Phone
(406) 731-8888
Fax
(406) 731-8876
NPI assigned
Jun 22, 2006
Last updated
Apr 5, 2024By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 5, 2024

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X 7579 MT Primary

Addresses

Primary practice location

1401 25TH St S
Great Falls, MT 59405-5183

Mailing address

1401 25TH St S
Great Falls, MT 59405-5183
Phone (406) 731-8888

Other identifiers 6

IdentifierTypeStateIssuer
0103571MedicaidMT
0136986OtherMTWASHINGTON L&I
810347861OtherMTCHAMPUS
000007501OtherMTBLUE CROSS BLUE SHIELD
810347861008OtherMTEBMS
200019136OtherMTRAILROAD MEDICARE

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address gtierney18593@benefishs.direct-ci.com Benefis Hospitals Inc

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MT
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
I20100507000667 MT Practitioner - Orthopedic Surgery 8022159433 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic Surgery
Education
University of Washington School of Medicine, 1988
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Benefis Hospitals IncGroup PAC ID 1153235296, 390 clinicians

Practice addresses (Care Compare)

1101 26TH St S
Great Falls, MT 59405-5161
Phone (406) 455-5000

1401 25TH St S
Great Falls, MT 59405-5183
Phone (406) 455-5000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
82.99 of 100Reported as group
Quality
62.64
Promoting interoperability
100
Improvement activities
40
Cost
80.67

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

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
7579MTMDPhysical Therapist

Practice roles

OrganizationSpecialtyStatusNew patients
Benefis Hospitals Inc CurrentSince May 25, 2014 Accepting new patients
Great Falls Orthopaedic Associates Past Accepting new patients
Frances Mahon Deaconess Hospital Past Accepting new patients
Benefis Hospitals, Inc. Past Accepting new patients

Locations

1101 26th St S
Great Falls, MT 59405
Phone (406) 455-4690

1101 26th St S
Fl 5
Great Falls, MT 59405
Phone (406) 455-2132

1401 25th St S
Great Falls, MT 59405
Phone (406) 455-3650

Interoperability endpoints

  • Direct secure messaging: gtierney18593@benefishs.direct-ci.com

Ownership & related parties

All facility ownership & control disclosures 7

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Benefis Hospitals IncGreat Falls, MT, CCN 270012 Hospital Corporate Officer
W-2 Managing Employee		 Jan 1, 2021
Jan 1, 2021
Benefis Hospitals IncGreat Falls, MT, CCN 27T012 Hospital Corporate Officer
Corporate Director		 Jun 1, 2014
Jan 1, 2021
Benefis Senior ServicesGreat Falls, MT, CCN 275012 Skilled nursing facility Corporate Director Jan 1, 2021
Benefis Senior ServicesGreat Falls, MT, CCN 275158 Skilled nursing facility Corporate Director Jan 1, 2021
Benefis Senior ServicesGreat Falls, MT, CCN 275157 Skilled nursing facility Corporate Officer
W-2 Managing Employee		 Jan 1, 2021
Jan 1, 2021
Benefis Community Care, Inc.Great Falls, MT, CCN 277090 Home health agency Corporate Officer Jan 1, 2024
Peace Hospice of MontanaGreat Falls, MT, CCN 271507 Hospice Corporate Director
W-2 Managing Employee		 Jan 1, 2021
Jan 1, 2021

Owned or controlled facilities with NPI records 7

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Organizations & group practices 4

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

Hospital & facility affiliations 3

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": "1150934400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1712275200000",
    "number": "1679519870",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1401 25TH ST S",
            "city": "GREAT FALLS",
            "state": "MT",
            "postal_code": "594055183",
            "telephone_number": "406-731-8888",
            "fax_number": "406-731-8876"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1401 25TH ST S",
            "city": "GREAT FALLS",
            "state": "MT",
            "postal_code": "594055183",
            "telephone_number": "406-731-8888",
            "fax_number": "406-731-8876"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TIERNEY",
        "first_name": "GREGORY",
        "middle_name": "S",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-22",
        "last_updated": "2024-04-05",
        "certification_date": "2022-12-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207XX0005X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Sports Medicine",
            "state": "MT",
            "license": "7579",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0103571",
            "state": "MT"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "WASHINGTON L&I",
            "identifier": "0136986",
            "state": "MT"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CHAMPUS",
            "identifier": "810347861",
            "state": "MT"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS BLUE SHIELD",
            "identifier": "000007501",
            "state": "MT"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "EBMS",
            "identifier": "810347861008",
            "state": "MT"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "200019136",
            "state": "MT"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "gtierney18593@benefishs.direct-ci.com",
            "affiliation": "Y",
            "affiliationName": "Benefis Hospitals Inc",
            "address_1": "1401 25th St S",
            "city": "Great Falls",
            "state": "MT",
            "country_code": "US",
            "postal_code": "594055183",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Great Falls, MT

Sources for this page

Verify at the official NPI Registry.