NPIMap

Individual provider Active NPI

Mackenzie Leigh Whitesell Garcia, MD

  • Internal Medicine Physician
  • Denver, CO
National Provider Identifier
1104402080
Registry record updated Jul 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
DR.0075015 Issued in CO
Practice address
301 W 6TH Ave
Denver, CO 80204-5182
Phone
(303) 436-6000
NPI assigned
Mar 22, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 6, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X DR.0075015 CO Primary

Addresses

Primary practice location

301 W 6TH Ave
Denver, CO 80204-5182

Mailing address

301 W 6TH Ave
Denver, CO 80204-5182
Phone (303) 436-6000

Other names 1

  • Mackenzie Whitesell Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO
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
I20250724000156 CO Order and Referring Only - Geriatric MedicinePractitioner - Geriatric Medicine 3375944796

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Internal Medicine
Education
University of Colorado School of Medicine, Aurora, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Denver Health and Hospital AuthorityGroup PAC ID 4688583578, shared by 20 NPIs, 830 clinicians

Practice addresses (Care Compare)

777 Bannock St
Denver, CO 80204-4507
Phone (303) 436-6000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
93.24 of 100Reported as group
Quality
73.72
Promoting interoperability
100
Improvement activities
40
Cost
75.22

Merit-based Incentive Payment System (MIPS)

Final score
94.51 of 100Reported as apm
Quality
80.61
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
DR.0075015COMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Emory Health Care Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: mgarcia93051@direct.emory.org

Organizations & group practices 1

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.

Hospital & facility affiliations 30

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 30

NPI Registry JSON

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

{
    "created_epoch": "1616371200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783296000000",
    "number": "1104402080",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "301 W 6TH AVE",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802045182",
            "telephone_number": "303-436-6000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "301 W 6TH AVE",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802045182",
            "telephone_number": "303-436-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GARCIA",
        "first_name": "MACKENZIE",
        "middle_name": "LEIGH WHITESELL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-03-22",
        "last_updated": "2026-07-06",
        "certification_date": "2026-07-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CO",
            "license": "DR.0075015",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MACKENZIE",
            "last_name": "WHITESELL",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.