George R Machian, DDS

Primary specialty

EndodonticsTaxonomy code 1223E0200X

License

4333 Issued in WI

Practice address

406 Science Dr
Ste 410
Madison, WI 53711-1068

Phone

(608) 231-9489

Fax

(608) 231-2814

NPI assigned

Jun 23, 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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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.

• Madison Endodontic Associates S.C

  • Endodontics
  • Madison, WI
  • NPI 1326045030
  NPD (past)

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

{
    "created_epoch": "1119484800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1447256599",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "406 SCIENCE DR",
            "address_2": "STE 410",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537111068",
            "telephone_number": "608-231-9489",
            "fax_number": "608-231-2814"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "406 SCIENCE DR",
            "address_2": "STE 410",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537111068",
            "telephone_number": "608-231-9489",
            "fax_number": "608-231-2814"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MACHIAN",
        "first_name": "GEORGE",
        "middle_name": "R",
        "credential": "DDS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-23",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223E0200X",
            "taxonomy_group": "",
            "desc": "Dentist, Endodontics",
            "state": "WI",
            "license": "4333",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jacob A Macdowell, PA-C
• Robert I. Macfarlane, M.D.
• Marina Macgillivray
• Lily Sances Machalek, SLP
• Christie J Machan, CAPSW, MSW
• Heather M Machkovech, MD, PHD
• Susan Jean Machkovitz, PH.D.
• Kaci Maciosek
• Dave Mack
• Kelly S Mack, APRN BC

• Endodontics in Madison, WI
• Providers in Madison, WI by specialty
• Endodontics in Wisconsin

• 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.