Thomas Harris Washington IV, MS, CGC

Primary specialty

Genetic Counselor (M.S.)Taxonomy code 170300000X

Practice address

4300 Londonderry Rd Ste 202
Harrisburg, PA 17109-5317

Phone

(717) 545-5000

Fax

(717) 545-5001

NPI assigned

Oct 1, 2026

Last updated

Oct 1, 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

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

{
    "created_epoch": "1790812800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790812800000",
    "number": "1598679037",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "429 MONTGOMERY AVE APT B404",
            "city": "HAVERFORD",
            "state": "PA",
            "postal_code": "190411735",
            "telephone_number": "724-766-6624"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4300 LONDONDERRY RD STE 202",
            "city": "HARRISBURG",
            "state": "PA",
            "postal_code": "171095317",
            "telephone_number": "717-545-5000",
            "fax_number": "717-545-5001"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WASHINGTON",
        "first_name": "THOMAS",
        "middle_name": "HARRIS",
        "name_prefix": "Mr.",
        "name_suffix": "IV",
        "credential": "MS, CGC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-10-01",
        "last_updated": "2026-10-01",
        "certification_date": "2026-10-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "170300000X",
            "taxonomy_group": "",
            "desc": "Genetic Counselor, MS",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Genetic Counselor (M.S.) in Harrisburg, PA
• Providers in Harrisburg, PA by specialty
• Genetic Counselor (M.S.) in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.