Individual provider Active NPI

Thomas A Slack, DDS

  • Oral and Maxillofacial Surgery (Dentist)
  • Portage, MI
National Provider Identifier
1669433793
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Oral and Maxillofacial Surgery (Dentist)Taxonomy code 1223S0112X
License
2901013823 Issued in MI
Practice address
3801 Glenkerry CT
Portage, MI 49024-0718
Phone
(269) 323-1527
Fax
(269) 323-1670
NPI assigned
Mar 29, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Oral and Maxillofacial Surgery (Dentist) 1223S0112X 2901013823 MI Primary

Addresses

Primary practice location

3801 Glenkerry CT
Portage, MI 49024-0718

Mailing address

3801 Glenkerry CT
Portage, MI 49024-0718
Phone (269) 323-1527

Other identifiers 2

IdentifierTypeStateIssuer
2675451MedicaidMI
2990919MedicaidMI

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
2901013823MIMDOral and Maxillofacial Surgery (Dentist)

NPI Registry JSON

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

{
    "created_epoch": "1143590400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1669433793",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3801 GLENKERRY CT",
            "city": "PORTAGE",
            "state": "MI",
            "postal_code": "490240718",
            "telephone_number": "269-323-1527",
            "fax_number": "269-323-1670"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3801 GLENKERRY CT",
            "city": "PORTAGE",
            "state": "MI",
            "postal_code": "490240718",
            "telephone_number": "269-323-1527",
            "fax_number": "269-323-1670"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SLACK",
        "first_name": "THOMAS",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "DDS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-29",
        "last_updated": "2025-09-11",
        "certification_date": "2020-10-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223S0112X",
            "taxonomy_group": "",
            "desc": "Dentist, Oral and Maxillofacial Surgery",
            "state": "MI",
            "license": "2901013823",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2675451",
            "state": "MI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2990919",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Portage, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.