NPIMap

Individual provider Active NPI

Maren J Dunn, DO

  • Family Medicine Physician
  • Big Sky, MT
National Provider Identifier
1376538512
Registry record updated Jul 9, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
11561 Issued in MT
Practice address
334 Town Center Ave
Big Sky, MT 59716-1713
Phone
(406) 995-6995
NPI assigned
Sep 14, 2005
Last updated
Jul 9, 2025By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 9, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 11561 MT Primary

Addresses

Primary practice location

334 Town Center Ave
Big Sky, MT 59716-1713

Mailing address

915 Highland Blvd
Bozeman, MT 59715-6902
Phone (406) 414-5000

Other identifiers 2

IdentifierTypeStateIssuer
1376538512MedicaidMT
807252900MedicaidID

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mchandler7291321@direct.sanfordhealth.org Direct

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
I20120404000019 MT Practitioner - Family Practice 2062583495 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Kansas City University of Physicians and Surgeons, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Billings ClinicGroup PAC ID 6002993516, 814 clinicians
Bozeman Health Big Sky Medical Center LLCGroup PAC ID 7315256872, shared by 3 NPIs, 21 clinicians

Practice addresses (Care Compare)

236 Yellowstone Ave
West Yellowstone, MT 59758-8946
Phone (406) 646-9441

334 Town Ctr Ave
Big Sky, MT 59716
Phone (406) 995-6995

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
80.25 of 100Reported as group
Quality
83.73
Promoting interoperability
100
Improvement activities
40
Cost
50.42

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions1-10
Removal of nail tissue1-10
Skin biopsy1-10

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Billings Clinic Current Accepting new patients
Billings Clinic Family Medicine CurrentSince Sep 18, 2025 Accepting new patients
Bighorn Valley Health Center, Incorporated CurrentSince Jan 5, 2016 Accepting new patients
Billings Clinic Family Medicine CurrentSince Sep 18, 2025 Accepting new patients
Field of Dreams PC Current Accepting new patients
Bighorn Valley Health Center Incorporated Family Medicine CurrentSince Jan 5, 2016 Accepting new patients
Bozeman Health Big Sky Medical Center, LLC CurrentSince Dec 10, 2015 Accepting new patients
Bozeman Health Big Sky Medical Center, LLC Family Medicine CurrentSince Dec 10, 2015 Accepting new patients
Bozeman Health Urgent Care CurrentSince Jul 1, 2025 Accepting new patients
Billings Clinic Past Accepting new patients
Bozeman Health Big Sky Medical Center, LLC Past Accepting new patients
St. Charles Health System, Inc. Past Accepting new patients

Locations

2800 10th Ave N
Billings, MT 59101
Phone (406) 248-3290

1006 W Main St
Bozeman, MT 59715
Phone (406) 414-4800

915 Highland Blvd
Bozeman, MT 59715
Phone (406) 414-1720

112 W Lewis St
Livingston, MT 59047
Phone (406) 222-1111

Interoperability endpoints

  • Direct secure messaging: marendunn@gfm.allscriptsdirect.net
  • Direct secure messaging: mchandler7291321@direct.sanfordhealth.org

Organizations & group practices 12

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 10

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": "1126656000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752019200000",
    "number": "1376538512",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "915 HIGHLAND BLVD",
            "city": "BOZEMAN",
            "state": "MT",
            "postal_code": "597156902",
            "telephone_number": "406-414-5000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "334 TOWN CENTER AVE",
            "city": "BIG SKY",
            "state": "MT",
            "postal_code": "597161713",
            "telephone_number": "406-995-6995"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUNN",
        "first_name": "MAREN",
        "middle_name": "J",
        "name_prefix": "Ms.",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2005-09-14",
        "last_updated": "2025-07-09",
        "certification_date": "2025-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MT",
            "license": "11561",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1376538512",
            "state": "MT"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "807252900",
            "state": "ID"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mchandler7291321@direct.sanfordhealth.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "334 Town Center Ave",
            "city": "Big Sky",
            "state": "MT",
            "country_code": "US",
            "postal_code": "597161713",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Big Sky, MT

Sources for this page

Verify at the official NPI Registry.