Thomas Patrick Witherby

Primary specialty

Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X

Practice address

23 Bradston St FL 1
Boston, MA 02118-2703

Phone

(617) 271-2193

NPI assigned

Jan 15, 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": "1768435200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768435200000",
    "number": "1417815598",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "755 TREMONT ST APT 701",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021181170"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "23 BRADSTON ST FL 1",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182703",
            "telephone_number": "617-271-2193"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WITHERBY",
        "first_name": "THOMAS",
        "middle_name": "PATRICK",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-01-15",
        "last_updated": "2026-01-15",
        "certification_date": "2026-01-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Anna K. Wiste, MD, PHD
• Victoria Witczak, PA-C
• Margaret Embury Witek, CRNA
• Sara Witek, AU.D
• Lisa Witham, CRNA
• Tamsyn Withers
• Withings Medical Group Ca PC
• Withings Medical Group KS PA
• Withings Medical Group NJ PA
• Withings Medical Group PA

• Addiction (Substance Use Disorder) Counselor in Boston, MA
• Providers in Boston, MA by specialty
• Addiction (Substance Use Disorder) Counselor in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 15, 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.