Individual provider Active NPI

Carl Jeffries Gustke, DDS

  • Periodontics
  • Washington, DC
National Provider Identifier
1245218320
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
PeriodonticsTaxonomy code 1223P0300X
License
4328-015 Issued in WI
Practice address
Comdt (CG-1122) U.S. Coast Guard
2100 2ND St. SW, Suite 5314
Washington, DC 20593
Phone
(202) 267-0801
NPI assigned
Jan 9, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Periodontics 1223P0300X DS027832L PA
Periodontics 1223P0300X 4328-015 WI Primary

Addresses

Primary practice location

Comdt (CG-1122) U.S. Coast Guard
2100 2ND St. SW, Suite 5314
Washington, DC 20593

Mailing address

306 Mechanic St
Cape May Court House, NJ 08210-1828

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)
Not enrolled

State licenses

LicenseStateTypeSpecialty
DS027832LPAMDPeriodontist
4328-015WIMDPeriodontist

NPI Registry JSON

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

{
    "created_epoch": "1136764800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1245218320",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "306 MECHANIC ST",
            "city": "CAPE MAY COURT HOUSE",
            "state": "NJ",
            "postal_code": "082101828"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "COMDT (CG-1122) U.S. COAST GUARD",
            "address_2": "2100 2ND ST. SW, SUITE 5314",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "20593",
            "telephone_number": "202-267-0801"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GUSTKE",
        "first_name": "CARL",
        "middle_name": "JEFFRIES",
        "name_prefix": "Dr.",
        "credential": "DDS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-09",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223P0300X",
            "taxonomy_group": "",
            "desc": "Dentist, Periodontics",
            "state": "PA",
            "license": "DS027832L",
            "primary": false
        },
        {
            "code": "1223P0300X",
            "taxonomy_group": "",
            "desc": "Dentist, Periodontics",
            "state": "WI",
            "license": "4328-015",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Washington, DC

Sources for this page

  • 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.