Individual provider Active NPI

Jeffrey Malmquist, DMD

  • General Practice Dentistry
  • Nashua, NH
National Provider Identifier
1669558698
Registry record updated Jun 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice DentistryTaxonomy code 1223G0001X
License
21161 Issued in MA
Practice address
375 Amherst St Ste 8
Nashua, NH 03063-1216
Phone
(603) 717-3500
NPI assigned
Oct 31, 2006
Last updated
Jun 16, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 16, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Dentistry 1223G0001X 04637 NH
General Practice Dentistry 1223G0001X 21161 MA Primary
General Practice Dentistry 1223G0001X 64302 CA

Addresses

Primary practice location

375 Amherst St Ste 8
Nashua, NH 03063-1216

Mailing address

17 King George Dr
Londonderry, NH 03053-2817
Phone (781) 420-9158

Other practice location 1

460 Elm St
Manchester, NH 03101-2768
Phone (603) 760-6000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
64302CAMDGeneral Practice Dentistry
04637NHMDGeneral Practice Dentistry

Practice roles

OrganizationSpecialtyStatusNew patients
42 North Dental Care, LLC Past Accepting new patients
Great Hill Dental Partners, LLC PastSince Jul 12, 2020 Accepting new patients
Nashua Dentistry and Braces Inc General Practice PastSince Jun 28, 2020 Accepting new patients

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1162252800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781568000000",
    "number": "1669558698",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "17 KING GEORGE DR",
            "city": "LONDONDERRY",
            "state": "NH",
            "postal_code": "030532817",
            "telephone_number": "781-420-9158"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "375 AMHERST ST STE 8",
            "city": "NASHUA",
            "state": "NH",
            "postal_code": "030631216",
            "telephone_number": "603-717-3500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "460 Elm St",
            "address_purpose": "LOCATION",
            "city": "Manchester",
            "state": "NH",
            "postal_code": "031012768",
            "country_code": "US",
            "telephone_number": "603-760-6000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MALMQUIST",
        "first_name": "JEFFREY",
        "name_prefix": "Dr.",
        "credential": "DMD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-31",
        "last_updated": "2026-06-16",
        "certification_date": "2026-06-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "NH",
            "license": "04637",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "MA",
            "license": "21161",
            "primary": true
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CA",
            "license": "64302",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Nashua, NH

Sources for this page

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