John T Molloy, MD

Primary specialty

Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X

License

3986 Issued in MT

Practice address

3000 15TH Avenue South
Great Falls, MT 59405

Phone

(406) 454-2171

Fax

(406) 771-3021

NPI assigned

Aug 3, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MT

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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 and National Provider Directory roles.

• Great Falls Clinic LLC

  • Multi-Specialty Clinic/Center
  • Great Falls, MT
  • NPI 1801897780
  Medicare reassignment NPD
• Frances Mahon Deaconess Hospital

  • Critical Access Hospital
  • Glasgow, MT
  • NPI 1689685323
  NPD (past)
• Great Falls Gastroenterology, LLC

  • Specialist
  • Great Falls, MT
  • NPI 1740493808
  NPD (past)

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

{
    "created_epoch": "1123027200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1609877471",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1400 29TH ST S",
            "city": "GREAT FALLS",
            "state": "MT",
            "postal_code": "594055353",
            "telephone_number": "406-454-2171",
            "fax_number": "406-771-3021"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3000 15TH AVENUE SOUTH",
            "city": "GREAT FALLS",
            "state": "MT",
            "postal_code": "59405",
            "telephone_number": "406-454-2171",
            "fax_number": "406-771-3021"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MOLLOY",
        "first_name": "JOHN",
        "middle_name": "T",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-03",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "MT",
            "license": "3986",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0073398",
            "state": "MT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Natalie Lidia Moldovan, DO
• Chad L Molen, D.P.T., CSCS
• Reid L Molen Jr., P.T.
• Stephen Molen, LMT
• Deana R Moler, AGPCNP
• Amber Molnar, AGACNP
• Peter Paul Molnar, N.P.
• Jolene Monheim, P.T.
• Kimberly Anne Monroe
• Montana Anesthesia PLLC

• Geriatric Medicine (Internal Medicine) Physician in Great Falls, MT
• Providers in Great Falls, MT by specialty
• Geriatric Medicine (Internal Medicine) Physician in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.