John Edward Longley, D.D.S.

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

13371 Issued in MD

Practice address

20 E Timonium Rd
Ste 210
Timonium, MD 21093-3456

Phone

(410) 308-4880

Fax

(410) 308-4883

NPI assigned

Jun 1, 2005

Last updated

Jul 13, 2026By the provider in NPPES

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

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Gunnar Fisher Dentistry

  • Dentist
  • Timonium, MD
  • NPI 1568533230
  NPD (past)

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

{
    "created_epoch": "1117584000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1053315317",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "118 BOSLEY AVE",
            "city": "COCKEYSVILLE HUNT VALLEY",
            "state": "MD",
            "postal_code": "210302334",
            "telephone_number": "410-666-1213"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 E TIMONIUM RD",
            "address_2": "STE 210",
            "city": "TIMONIUM",
            "state": "MD",
            "postal_code": "210933456",
            "telephone_number": "410-308-4880",
            "fax_number": "410-308-4883"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LONGLEY",
        "first_name": "JOHN",
        "middle_name": "EDWARD",
        "name_prefix": "Dr.",
        "credential": "D.D.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "MD",
            "license": "13371",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• General Practice Dentistry in Timonium, MD
• Providers in Timonium, MD by specialty
• General Practice Dentistry in Maryland

• 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.