Active NPI
Jeffrey Malmquist, DMD
- General Practice Dentistry
- Nashua, NH
National Provider Identifier
1669558698
On this page
Key facts
NPPES NPI Registry- Primary specialty
- General Practice Dentistry
- License
- 21161
- Practice address
- 375 Amherst St Ste 8
Nashua, NH 03063-1216 - Phone
- (603) 717-3500
- NPI assigned
- Oct 31, 2006
- Last updated
- Jun 16, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| License | State | Type | Specialty |
|---|---|---|---|
| 64302 | CA | MD | General Practice Dentistry |
| 04637 | NH | MD | General Practice Dentistry |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| 42 North Dental Care, LLC | Past | Accepting new patients | |
| Great Hill Dental Partners, LLC | Past | Accepting new patients | |
| Nashua Dentistry and Braces Inc | General Practice | Past | 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.
-
- General Practice Dentistry
- Nashua, NH
- NPI 1720602287
-
- Dentist
- Peabody, MA
- NPI 1245517176
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.