Individual provider Active NPI

Seyoung Han, PA-C

  • Physician Assistant
  • Fairfax, VA
National Provider Identifier
1235949678
Registry record updated Aug 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
0110011565 Issued in VA
Practice address
3903 Fair Ridge Dr Ste 218
Fairfax, VA 22033-2945
Phone
(703) 870-3750
Fax
(855) 749-9998
NPI assigned
Jan 8, 2025
Last updated
Aug 17, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 17, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 0110011565 VA Primary

Addresses

Primary practice location

3903 Fair Ridge Dr Ste 218
Fairfax, VA 22033-2945

Mailing address

3903 Fair Ridge Dr Ste 218
Fairfax, VA 22033-2945
Phone (703) 870-3750

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in VA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260302001331 VA Practitioner - Physician Assistant 4082196860 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2025
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

950 N Glebe Rd
Suite 700
Arlington, VA 22203-4173

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
0110011565VAMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Ashburn Allergy, PLLC Allergy & Immunology CurrentSince Feb 25, 2026 Accepting new patients

Locations

20955 Professional Plz
Ste 300
Ashburn, VA 20147
Phone (571) 246-6323

Interoperability endpoints

  • FHIR API: https://fhir4.healow.com/fhir/r4/ABICBD

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, 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": "1736294400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786924800000",
    "number": "1235949678",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3903 FAIR RIDGE DR STE 218",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "220332945",
            "telephone_number": "703-870-3750",
            "fax_number": "855-749-9998"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3903 FAIR RIDGE DR STE 218",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "220332945",
            "telephone_number": "703-870-3750",
            "fax_number": "855-749-9998"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAN",
        "first_name": "SEYOUNG",
        "credential": "PA-C",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-01-08",
        "last_updated": "2026-08-17",
        "certification_date": "2026-08-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "VA",
            "license": "0110011565",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Fairfax, VA

Sources for this page

Verify at the official NPI Registry.