Individual provider Active NPI

Diana H Joo, DDS

  • Prosthodontics
  • Arlington, VA
National Provider Identifier
1659197770
Registry record updated Aug 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
ProsthodonticsTaxonomy code 1223P0700X
License
0401419374 Issued in VA
Practice address
5500 Columbia Pike Ste B
Arlington, VA 22204-5867
Phone
(703) 575-9899
NPI assigned
Nov 25, 2024
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 11, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Prosthodontics 1223P0700X 0401419374 VA Primary
Prosthodontics 1223P0700X DS044989 PA

Addresses

Primary practice location

5500 Columbia Pike Ste B
Arlington, VA 22204-5867

Mailing address

8304 Greentree Manor LN
Fairfax Station, VA 22039-3214
Phone (703) 309-7116

Other names 1

  • Hee Ryang Joo Former 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
DS044989PAMDProsthodontist
0401419374VAMDProsthodontist

Practice roles

OrganizationSpecialtyStatusNew patients
Apk Smiles CurrentSince Aug 17, 2025 Accepting new patients

Locations

5500 Columbia Pike
Ste B
Arlington, VA 22204
Phone (703) 575-9899

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": "1732492800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754870400000",
    "number": "1659197770",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8304 GREENTREE MANOR LN",
            "city": "FAIRFAX STATION",
            "state": "VA",
            "postal_code": "220393214",
            "telephone_number": "703-309-7116"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5500 COLUMBIA PIKE STE B",
            "city": "ARLINGTON",
            "state": "VA",
            "postal_code": "222045867",
            "telephone_number": "703-575-9899"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JOO",
        "first_name": "DIANA",
        "middle_name": "H",
        "credential": "DDS",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-11-25",
        "last_updated": "2025-08-11",
        "certification_date": "2025-08-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223P0700X",
            "taxonomy_group": "",
            "desc": "Dentist, Prosthodontics",
            "state": "VA",
            "license": "0401419374",
            "primary": true
        },
        {
            "code": "1223P0700X",
            "taxonomy_group": "",
            "desc": "Dentist, Prosthodontics",
            "state": "PA",
            "license": "DS044989",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "HEE",
            "last_name": "JOO",
            "middle_name": "RYANG",
            "code": "1",
            "type": "Former 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 Aug 11, 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.