Matthew William Knight, D.D.S.

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

16429 Issued in MA

Practice address

19 Hammatt St
Ipswich, MA 01938-1930

Phone

(978) 356-4733

Fax

(978) 356-6230

NPI assigned

Mar 17, 2006

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": "1142553600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1013986272",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19 HAMMATT ST",
            "city": "IPSWICH",
            "state": "MA",
            "postal_code": "019381930",
            "telephone_number": "978-356-4733",
            "fax_number": "978-356-6230"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "19 HAMMATT ST",
            "city": "IPSWICH",
            "state": "MA",
            "postal_code": "019381930",
            "telephone_number": "978-356-4733",
            "fax_number": "978-356-6230"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KNIGHT",
        "first_name": "MATTHEW",
        "middle_name": "WILLIAM",
        "name_prefix": "Mr.",
        "credential": "D.D.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-17",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "MA",
            "license": "16429",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• General Practice Dentistry in Ipswich, MA
• Providers in Ipswich, MA by specialty
• General Practice Dentistry in Massachusetts

• 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.