Colleen M Marron, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

7770 Issued in MT

Practice address

1400 29TH St S
Great Falls, MT 59405-5353

Phone

(406) 454-2171

Fax

(406) 771-3021

NPI assigned

Aug 2, 2005

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 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: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: colleen.marron.1@25095.direct.athenahealth.com
• 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

  Primary Care

  Medicare reassignment NPD
• Benefis Hospitals, Inc.

  • General Acute Care Hospital
  • Great Falls, MT
  • NPI 1881650737
  NPD (past)

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

{
    "created_epoch": "1122940800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784592000000",
    "number": "1073514931",
    "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": "1400 29TH ST S",
            "city": "GREAT FALLS",
            "state": "MT",
            "postal_code": "594055353",
            "telephone_number": "406-454-2171",
            "fax_number": "406-771-3021"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARRON",
        "first_name": "COLLEEN",
        "middle_name": "M",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-08-02",
        "last_updated": "2026-07-21",
        "certification_date": "2026-07-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "261QP2300X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Primary Care",
            "state": "MT",
            "license": "MED-PHYS-LIC-7770",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MT",
            "license": "7770",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0013416",
            "state": "MT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Mark F. Ozog M.D. P.C. (Ozog Eye Care and Laser Center)
• Charles Marler, M.D.
• Michele C Marler, M.D.
• Cathy Marquard, LPN
• Cady Marquardt, LMT
• Mary Marsh, LCPC, LAC
• Marshall Orthodontics, P.C.
• Robert Jay Marshall, DDS, MS
• Kenneth Martey, PHARM.D
• Martha Morgan LCSW LLC

• Pediatrics Physician in Great Falls, MT
• Providers in Great Falls, MT by specialty
• Pediatrics Physician in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 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.