Individual provider Active NPI

Nicholas Everett Leon-Guerrero, D.D.S.

  • Endodontics
  • Arlington, VA
National Provider Identifier
1972979607
Registry record updated Dec 28, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
EndodonticsTaxonomy code 1223E0200X
License
0401416454 Issued in VA
Practice address
2700 S Quincy St Ste 325
Arlington, VA 22206-2242
Phone
(703) 828-8188
Fax
(703) 828-8187
NPI assigned
Aug 17, 2015
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 28, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Dentist 122300000X 058018 NY
Endodontics 1223E0200X 0401416454 VA Primary

Addresses

Primary practice location

2700 S Quincy St Ste 325
Arlington, VA 22206-2242

Mailing address

2700 S Quincy St Ste 325
Arlington, VA 22206-2242
Phone (703) 828-8188

Other practice location 1

7521 Virginia Oaks Dr Ste 230
Gainesville, VA 20155-3831
Phone (703) 754-7151

Other names 1

  • Dr. Nick Leon-Guerrero Other name

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
058018NYMDDentist
0401416454VAMDEndodontist

Practice roles

OrganizationSpecialtyStatusNew patients
Ylg Endodontics LLC Endodontics CurrentSince Jun 8, 2025 Accepting new patients

Locations

2700 S Quincy St
Ste 325
Arlington, VA 22206
Phone (703) 828-8188

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1439769600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766880000000",
    "number": "1972979607",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2700 S QUINCY ST STE 325",
            "city": "ARLINGTON",
            "state": "VA",
            "postal_code": "222062242",
            "telephone_number": "703-828-8188",
            "fax_number": "703-828-8187"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2700 S QUINCY ST STE 325",
            "city": "ARLINGTON",
            "state": "VA",
            "postal_code": "222062242",
            "telephone_number": "703-828-8188",
            "fax_number": "703-828-8187"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "7521 Virginia Oaks Dr Ste 230",
            "address_purpose": "LOCATION",
            "city": "Gainesville",
            "state": "VA",
            "postal_code": "201553831",
            "country_code": "US",
            "telephone_number": "703-754-7151",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEON-GUERRERO",
        "first_name": "NICHOLAS",
        "middle_name": "EVERETT",
        "name_prefix": "Dr.",
        "credential": "D.D.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-08-17",
        "last_updated": "2025-12-28",
        "certification_date": "2025-12-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "NY",
            "license": "058018",
            "primary": false
        },
        {
            "code": "1223E0200X",
            "taxonomy_group": "",
            "desc": "Dentist, Endodontics",
            "state": "VA",
            "license": "0401416454",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "NICK",
            "last_name": "LEON-GUERRERO",
            "prefix": "DR.",
            "credential": "DDS",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Arlington, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 28, 2025; 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.