Justin Thomas Derk, DMD

Primary specialty

Student in an Organized Health Care Education/Training ProgramTaxonomy code 390200000X

Practice address

20 Wesner LN
Danville, PA 17821-8023

Phone

(570) 275-6617

NPI assigned

Apr 16, 2026

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

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

{
    "created_epoch": "1776297600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776297600000",
    "number": "1619811916",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "142 BUTTERNUT LN",
            "city": "ELYSBURG",
            "state": "PA",
            "postal_code": "178247206"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 WESNER LN",
            "city": "DANVILLE",
            "state": "PA",
            "postal_code": "178218023",
            "telephone_number": "570-275-6617"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "112 Ironstone Dr Ste B",
            "address_purpose": "LOCATION",
            "city": "Northumberland",
            "state": "PA",
            "postal_code": "178578543",
            "country_code": "US",
            "telephone_number": "570-235-2468",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2 Utah Dr",
            "address_purpose": "LOCATION",
            "city": "Kulpmont",
            "state": "PA",
            "postal_code": "178341972",
            "country_code": "US",
            "telephone_number": "570-373-5563",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DERK",
        "first_name": "JUSTIN",
        "middle_name": "THOMAS",
        "credential": "DMD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-04-16",
        "last_updated": "2026-04-16",
        "certification_date": "2026-04-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "PA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Beverly Demarco, LCSW
• Alfred Elon Denio, M.D.
• Kala Jean Denlinger, RDH, PHDHP
• James Dent, MD
• Brian Derk
• Tasha Dershem, R.D.
• Harsh A. Desai, MD
• Yash Kaushal Desai
• Dayna Desalve
• Joseph G. Desantis, M.D.

• Student in an Organized Health Care Education/Training Program in Danville, PA
• Providers in Danville, PA by specialty
• Student in an Organized Health Care Education/Training Program in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 16, 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.