Individual provider Active NPI

Mark Dewitt Talmage, M.D.

  • Hospitalist Physician
  • Vona, CO
National Provider Identifier
1114038403
Registry record updated Aug 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
DR.0027631 Issued in CO
Practice address
23505 County Road Y
Vona, CO 80861
Phone
(303) 877-7239
Fax
(303) 761-7316
NPI assigned
Aug 31, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 10, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X DR.0027631 CO Primary
Adult Medicine Physician 207QA0505X 27631 CO
Family Medicine Physician 207Q00000X DR.0027631 CO

Addresses

Primary practice location

23505 County Road Y
Vona, CO 80861

Mailing address

8079 S Oneida CT
Centennial, CO 80112-3133
Phone (303) 877-7239

Other identifiers 3

IdentifierTypeStateIssuer
27631OtherCOSTATE LICENSE
53795OtherAZSTATE LICENSE
91769OtherMTSTATE LICENSE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO, AZ, MT, WY, IL5 enrollments
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 5

Enrollment IDStateProvider typePAC IDDetails
I20100927000239 CO Practitioner - HospitalistPractitioner - Family Practice 7810989365 Reassigns benefits to 4 organizations
I20200311001008 AZ Practitioner - Family Practice 7810989365 Reassigns benefits to 4 organizations
I20210208002610 MT Practitioner - Family Practice 7810989365 Reassigns benefits to 3 organizations
I20220228002596 WY Practitioner - Family Practice 7810989365 Reassigns benefits to 1 organization
I20230810002266 IL Practitioner - Family Practice 7810989365 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
University of Colorado School of Medicine, Denver, 1985
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Memorial Hospital of Converse CountyGroup PAC ID 2264340843, 77 clinicians
Comprehensive Hospitalist Services of Arizona LLCGroup PAC ID 8820138076, 24 clinicians
CMSC LLCGroup PAC ID 5890602494, 92 clinicians
Cogent Healthcare of Montana P CGroup PAC ID 4486712833, 82 clinicians

Practice addresses (Care Compare)

111 S 5TH St
Douglas, WY 82633-2434
Phone (307) 358-2122

1301 S Crimson Rd
Mesa, AZ 85209-3767
Phone (480) 358-6300

1509 29TH St S
Great Falls, MT 59405-5363
Phone (406) 771-3500

3000 15TH Ave S
Great Falls, MT 59405-5240
Phone (406) 454-2171

3010 15TH Ave S
Great Falls, MT 59405-5240
Phone (406) 216-8000

400 S Clark St
Butte, MT 59701-2328
Phone (406) 723-2500

Hospital & facility affiliations

  • St James Hospital Hospital, Butte, MT, CCN 270017
  • Western Arizona Regional Medical Center Hospital, Bullhead City, AZ, CCN 030101
  • Astria Sunnyside Hospital Hospital, Sunnyside, WA, CCN 501330
  • Memorial Hospital of Converse County Hospital, Douglas, WY, CCN 531302

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
27631COMDAdult Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Colorado Hospitalist Services, PLLC Hospitalist CurrentSince Feb 16, 2022 Accepting new patients
Northwest HBP Medical Services LLC Hospitalist CurrentSince Oct 2, 2023 Accepting new patients
Memorial Hospital of Converse County CurrentSince Feb 1, 2022 Accepting new patients
Comprehensive Hospitalist Services of Arizona LLC Hospitalist Current Accepting new patients
Apogee Medical Group Inc Internal Medicine CurrentSince Feb 1, 2024 Accepting new patients
Cogent Healthcare of Montana P C Family Medicine CurrentSince Oct 10, 2024 Accepting new patients
Inpatient Services, PC Family Medicine CurrentSince Apr 1, 2022 Accepting new patients
Cogent Healthcare of Arizona PC Internal Medicine CurrentSince Apr 1, 2020 Accepting new patients
American Physicians, Inc Family Medicine CurrentSince Jan 1, 2022 Accepting new patients
Mercy Hospital of Devils Lake Current Accepting new patients
Comprehensive Hospitalist Services of Arizona, LLC Hospitalist CurrentSince Nov 4, 2023 Accepting new patients
Catholic Health Initiatives Colorado CurrentSince Jul 1, 2025 Accepting new patients
CGH Medical Center Current Accepting new patients
KND Development 59, LLC Hospitalist CurrentSince Jun 1, 2018 Accepting new patients
American Physicians, Inc. Hospitalist CurrentSince Jan 1, 2022 Accepting new patients
KND Development 59, LLC Hospitalist Current Accepting new patients
Apogee Medical Group Inc Internal Medicine CurrentSince Feb 1, 2024 Accepting new patients
Colorado Hospitalist Services, PLLC Hospitalist CurrentSince Feb 16, 2022 Accepting new patients
Catholic Health Initiatives Colorado Current Accepting new patients
Catholic Health Initiatives Colorado CurrentSince Jul 1, 2025 Accepting new patients
CGH Medical Center Family Medicine CurrentSince Jul 1, 2023 Accepting new patients
CGH Medical Center CurrentSince Jul 1, 2023 Accepting new patients
Inpatient Services, PC Family Medicine CurrentSince Apr 1, 2022 Accepting new patients
Inpatient Services, PC Family Medicine Current Accepting new patients
App of Southern Arizona HM LLC Hospitalist CurrentSince Jul 1, 2021 Accepting new patients
Bullhead City Hospital Corporation Past Accepting new patients
Sunnyside Community Hospital Association Past Accepting new patients
St James Healthcare Past Accepting new patients

Locations (25 of 33)

2735 Silver Creek Rd
Bullhead City, AZ 86442
Phone (520) 763-2273

13677 W McDowell Rd
Goodyear, AZ 85395
Phone (623) 536-4200

3269 N Stockton Hill Rd
Kingman, AZ 86409
Phone (928) 757-0626

101 Civic Center Ln
Lk Havasu Cty, AZ 86403
Phone (928) 453-0150

1301 S Crismon Rd
Mesa, AZ 85209
Phone (480) 358-6300

1551 E Tangerine Rd
Oro Valley, AZ 85755
Phone (520) 901-3500

16640 N 38th St
Phoenix, AZ 85032
Phone (602) 482-6671

2000 W Bethany Home Rd
Phoenix, AZ 85015
Phone (480) 209-4000

3929 E Bell Rd
Phoenix, AZ 85032
Phone (602) 923-5000

9003 E Shea Blvd
Scottsdale, AZ 85260
Phone (480) 323-3383

5700 E Highway 90
Sierra Vista, AZ 85635
Phone (520) 263-2000

350 N Wilmot Rd
Tucson, AZ 85711
Phone (520) 873-3000

1601 W Saint Marys Rd
Tucson, AZ 85745
Phone (520) 622-5833

6200 N La Cholla Blvd
Tucson, AZ 85741
Phone (520) 229-2657

700 Potomac St
Fl 2
Aurora, CO 80011
Phone (319) 273-8992

9100 E Mineral Cir
Centennial, CO 80112
Phone (303) 561-5193

2525 S Downing St
Denver, CO 80210
Phone (303) 744-2706

501 E Hampden Ave
Englewood, CO 80113
Phone (303) 788-5300

1000 Lincoln St
Fort Morgan, CO 80701
Phone (970) 542-3320

8300 W 38th Ave
Wheat Ridge, CO 80033
Phone (303) 425-2015

41 State Highway 67
Woodland Park, CO 80863
Phone (719) 686-0551

3290 Solutions Ctr
Chicago, IL 60677

101 E Miller Rd
Sterling, IL 61081
Phone (815) 632-5285

360 Broadway
Bangor, ME 04401
Phone (207) 262-1703

93 Campus Ave
Lewiston, ME 04240
Phone (207) 755-3715

Interoperability endpoints

  • Direct secure messaging: mtalmage225761@direct.integrisok.com

Organizations & group practices 30

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.

View all 30

Hospital & facility affiliations 6

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": "1156982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786320000000",
    "number": "1114038403",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8079 S ONEIDA CT",
            "city": "CENTENNIAL",
            "state": "CO",
            "postal_code": "801123133",
            "telephone_number": "303-877-7239",
            "fax_number": "866-271-0712"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "23505 COUNTY ROAD Y",
            "city": "VONA",
            "state": "CO",
            "postal_code": "80861",
            "telephone_number": "303-877-7239",
            "fax_number": "303-761-7316"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TALMAGE",
        "first_name": "MARK",
        "middle_name": "DEWITT",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-08-31",
        "last_updated": "2026-08-10",
        "certification_date": "2026-08-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CO",
            "license": "DR.0027631",
            "primary": true
        },
        {
            "code": "207QA0505X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Adult Medicine",
            "state": "CO",
            "license": "27631",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CO",
            "license": "DR.0027631",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE",
            "identifier": "27631",
            "state": "CO"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE",
            "identifier": "53795",
            "state": "AZ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE",
            "identifier": "91769",
            "state": "MT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Vona, CO

Sources for this page

Verify at the official NPI Registry.