Individual provider Active NPI

Gregory James Nielsen, D.D.S.

  • Endodontics
  • Billings, MT
National Provider Identifier
1578600318
Registry record updated Jul 21, 2022
On this page

Key facts

NPPES NPI Registry
Primary specialty
EndodonticsTaxonomy code 1223E0200X
License
8806 Issued in CO
Practice address
2225 Broadwater Ave Ste a
Billings, MT 59102-4707
Phone
(702) 869-2800
Fax
(702) 869-2803
NPI assigned
Jan 31, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 21, 2022

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Endodontics 1223E0200X 11499 MT
General Practice Dentistry 1223G0001X 4702 NV
General Practice Dentistry 1223G0001X 8806 CO
Endodontics 1223E0200X 8806 CO Primary

Addresses

Primary practice location

2225 Broadwater Ave Ste a
Billings, MT 59102-4707

Mailing address

4194 Bainbridge Cir
Billings, MT 59106-2421
Phone (702) 869-2800

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)
Not enrolled

State licenses

LicenseStateTypeSpecialty
8806COMDEndodontist
11499MTMDEndodontist
4702NVMDGeneral Practice Dentistry

NPI Registry JSON

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

{
    "created_epoch": "1170201600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1658361600000",
    "number": "1578600318",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4194 BAINBRIDGE CIR",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591062421",
            "telephone_number": "702-869-2800",
            "fax_number": "702-869-2803"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2225 BROADWATER AVE STE A",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591024707",
            "telephone_number": "702-869-2800",
            "fax_number": "702-869-2803"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NIELSEN",
        "first_name": "GREGORY",
        "middle_name": "JAMES",
        "name_prefix": "Dr.",
        "credential": "D.D.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-01-31",
        "last_updated": "2022-07-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223E0200X",
            "taxonomy_group": "",
            "desc": "Dentist, Endodontics",
            "state": "MT",
            "license": "11499",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "NV",
            "license": "4702",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CO",
            "license": "8806",
            "primary": false
        },
        {
            "code": "1223E0200X",
            "taxonomy_group": "",
            "desc": "Dentist, Endodontics",
            "state": "CO",
            "license": "8806",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Billings, MT

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 2022; 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.