Mark Joseph Harris, DDS

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

6752 Issued in CO

Practice address

5590 S Windermere St
Littleton, CO 80120-1245

Phone

(303) 794-3003

NPI assigned

Jul 20, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CO

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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.

• Visiting Ancillary Services, Inc

  • Audiologist
  • Thornton, CO
  • NPI 1063957512
  NPD (past)

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

{
    "created_epoch": "1121817600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1699774711",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5590 S WINDERMERE ST",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801201245",
            "telephone_number": "303-794-3003"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5590 S WINDERMERE ST",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801201245",
            "telephone_number": "303-794-3003"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARRIS",
        "first_name": "MARK",
        "middle_name": "JOSEPH",
        "name_prefix": "Dr.",
        "credential": "DDS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CO",
            "license": "6752",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Melinda Harriman, LCSW
• James J Harrington III, MD
• Joseph William Harrington
• Corren Harris
• Kaylee Harris
• Rebecca Harris
• Ronald L Harris, O.D.
• Thomas Harris, PA-C
• Gavin Harrison
• Katelin Harrison

• General Practice Dentistry in Littleton, CO
• Providers in Littleton, CO by specialty
• General Practice Dentistry in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.