NPIMap

Organization Active NPI

Bighorn Valley Health Center Incorporated

Doing business as One Health-Harlem

  • Federally Qualified Health Center (FQHC)
  • Harlem, MT
National Provider Identifier
1619160504
Registry record updated Oct 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Federally Qualified Health Center (FQHC)Taxonomy code 261QF0400X
Legal business name
BIGHORN VALLEY HEALTH CENTER INCORPORATED
Doing business as
One Health-Harlem
Practice address
530 Central Ave W
Harlem, MT 59526-9444
Phone
(406) 353-4861
Fax
(855) 724-4194
NPI assigned
Aug 23, 2007
Last updated
Oct 6, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Oct 6, 2026

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

Authorized official

Name
Dr. David Andrew Mark, MDNPI 1023166840
Title
Ceo
Phone
(406) 665-4103

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Federally Qualified Health Center (FQHC) 261QF0400X NU Primary

Addresses

Primary practice location

530 Central Ave W
Harlem, MT 59526-9444

Mailing address

207 W Main St Ste 5
Lewistown, MT 59457-2718
Phone (406) 535-6545

Other names 1

  • One Health-Harlem Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MT2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
O20120913000593 MT Part B Supplier - Clinic/Group Practice 8820246077 Receives reassigned benefits from 85 practitioners
16 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Hardin, MT; Miles City, MT; Harlem, MT; Lewistown, MT; Livingston, MT; West Yellowstone, MT; Ashland, MT; Glendive, MT…
O20190208000562 MT Part A Provider - Federally Qualified Health Center (FQHC) 8820246077 Practice locations: Harlem, MT

NPI to CCN mapping 1

The Medicare certification numbers (CCNs) connected to NPI 1619160504. Details of each certification follow.

Federally qualified health center certification: CCN 271830

Legal name
BIGHORN VALLEY HEALTH CENTER INCORPORATED
Doing business as
ONE HEALTH - HARLEM
Certification status
Active
Provider type (POS)
Federally qualified health center
Participating since
Dec 8, 2004
Last certification
Dec 8, 2004
Ownership / control type
For profit – partnership
Most recent change of ownership
Nov 1, 2018 (1 total)
Organization structure
CorporationNon-profit
Incorporated
Sep 2, 2010 in MT
Enrollment address
530 Central Ave W
Harlem, MT 59526-9444

Other NPIs with the same Medicare PAC ID 23

NPIs whose Medicare enrollments share a PECOS associate control ID (the same enrolled entity).

View all 23

Other NPIs on the same Medicare enrollment 16

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

View all 16

National Provider Directory

National Provider Directory
Tax ID family
Bighorn Valley HLTH Ctr Inc32 organizations share this tax ID, including this one

Other organizations with this tax ID 31

Organizations that report the same tax identification number in the National Provider Directory.

View all 31

Locations

19 E Main St
Belgrade, MT 59714
Phone (406) 222-1111

311 W Main St
Lewistown, MT 59457
Phone (406) 535-6545

201 E 5th St
Sheridan, WY 82801
Phone (307) 674-6995

Ownership & related parties

All disclosed owners & managing parties 15

As disclosed on the Medicare enrollment (CMS All Owners files). Individuals include officers, directors and managing employees, who may not hold ownership.

NameRoleSinceShare
Martin V Thone Individual Corporate DirectorBoard Member Feb 1, 2018
Sara Pretty Weasel Individual Corporate DirectorBoard Member Jan 8, 2015
Beth Hronek Individual Corporate DirectorBoard Member Jun 1, 2022
Barbara Skoyen Individual Corporate DirectorBoard Member Nov 1, 2018
Curtis B Whicker Individual Corporate DirectorBoard Member Jun 1, 2022
Kathleen Davidson Individual Corporate DirectorBoard Member Mar 17, 2023
Timothy Hardy Individual Corporate DirectorBoard Member Apr 13, 2018
David a Mark Individual Corporate OfficerCeo Oct 12, 2012
W-2 Managing EmployeeCeo Oct 12, 2012
Eric Tiner Individual Corporate DirectorBoard Member Feb 1, 2018
Jacqueline Jordan Sikoski Individual Corporate DirectorBoard Member May 1, 2024
Andrea Martin Individual Corporate OfficerRevenue Cycle Director Sep 21, 2021
William Briggs Individual Corporate DirectorBoard Member Sep 24, 2015
Eli Hofer Individual Corporate DirectorBoard Member Nov 1, 2018
Juanita M Sapp Individual Corporate DirectorBoard Member Jun 1, 2022
Samantha Lee Peirce Individual Corporate DirectorBoard Member May 1, 2024

Owners & managing parties with NPI records 2

Owners and managing parties disclosed on this facility’s Medicare enrollment that are themselves Medicare-enrolled.

Change-of-ownership history 2

DateEventCounterparty
Nov 1, 2018 Change of OwnershipThis provider was the buyer Sweet Medical Center, Inc.CCN 271830, MT, NPI 1619160504
Nov 1, 2018 Change of OwnershipThis provider was the seller One Health - HarlemCCN 271830, MT, NPI 1619160504

Practitioners & affiliated clinicians

Practitioners 78

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 78

NPI Registry JSON

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

{
    "created_epoch": "1187827200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1791244800000",
    "number": "1619160504",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "207 W MAIN ST STE 5",
            "city": "LEWISTOWN",
            "state": "MT",
            "postal_code": "594572718",
            "telephone_number": "406-535-6545"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "530 CENTRAL AVE W",
            "city": "HARLEM",
            "state": "MT",
            "postal_code": "595269444",
            "telephone_number": "406-353-4861",
            "fax_number": "855-724-4194"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "BIGHORN VALLEY HEALTH CENTER INCORPORATED",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-08-23",
        "last_updated": "2026-10-06",
        "certification_date": "2026-10-06",
        "status": "A",
        "authorized_official_last_name": "MARK",
        "authorized_official_first_name": "DAVID",
        "authorized_official_middle_name": "ANDREW",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "406-665-4103",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "261QF0400X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Federally Qualified Health Center (FQHC)",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "One Health-Harlem",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Harlem, MT

Sources for this page

Verify at the official NPI Registry.