Mary E Gray, FNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

100012 Issued in MT

Practice address

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

Phone

(406) 731-8888

Fax

(406) 731-8876

NPI assigned

Aug 2, 2005

Last updated

Mar 27, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MT

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 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)

Hospital & facility affiliations

• Benefis Community Care Inc Home health agency, Great Falls, MT, CCN 277090
• Benefis Hospitals Inc Hospital, Great Falls, MT, CCN 270012

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

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/25095/brand/1/csg/1/fhir/r4

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.

• Benefis Hospitals Inc

  dba Benefis Medical Group

  • Multi-Specialty Clinic/Center
  • Great Falls, MT
  • NPI 1780968974
  Medicare reassignment Care Compare group NPD
• Great Falls Clinic LLC

  • Multi-Specialty Clinic/Center
  • Great Falls, MT
  • NPI 1801897780
  NPD
• Benefis Hospitals, Inc.

  dba Benefis Senior Services

  • Physical Therapist
  • Great Falls, MT
  • NPI 1750530515
  NPD (past)
• Frances Mahon Deaconess Hospital

  • Critical Access Hospital
  • Glasgow, MT
  • NPI 1689685323
  NPD (past)

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

• Benefis Community Care, Inc.

  dba Spectrum Home Health

  • Home Health Agency
  • Great Falls, MT
  • NPI 1811927452
  Care Compare affiliation
• Benefis Hospitals Inc

  dba Benefis Medical Group

  • Multi-Specialty Clinic/Center
  • Great Falls, MT
  • NPI 1780968974

  Hospital

  Care Compare affiliation
• Benefis Hospitals, Inc.

  • Air Ambulance
  • Great Falls, MT
  • NPI 1114934023

  Hospital

  Care Compare affiliation
• Benefis Hospitals, Inc.

  • General Acute Care Hospital
  • Great Falls, MT
  • NPI 1881650737
  Care Compare affiliation

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

{
    "created_epoch": "1122940800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774569600000",
    "number": "1184625055",
    "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": "406-455-5000",
            "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": "GRAY",
        "first_name": "MARY",
        "middle_name": "E",
        "credential": "FNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-08-02",
        "last_updated": "2026-03-27",
        "certification_date": "2026-03-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MT",
            "license": "100012",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mgray18627@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": []
}

• Torrie Grant
• Robert M Grasseschi, MD
• Caitlin E Gray Avci, FNP
• Alrich L Gray, M.D.
• Jon Gray, PT
• Great Falls Care Holdings, LLC (Invigorate Post Acute of Great Falls)
• Great Falls Caring Dentistry
• Great Falls Chiropractic Clinic, P.L.L.C
• Great Falls Clinic LLC
• Great Falls Clinic Surgery Center LLC

• Family Nurse Practitioner in Great Falls, MT
• Providers in Great Falls, MT by specialty
• Family Nurse Practitioner in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 27, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.