Hospital Medicine Services of VA, LLC

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Legal business name

HOSPITAL MEDICINE SERVICES OF VA, LLC

Practice address

1850 Town Center Pkwy
Reston, VA 20190-3219

Phone

(703) 689-9000

NPI assigned

Jun 17, 2026

Last updated

Jun 17, 2026By the provider in NPPES

Organization subpart

Yes

Parent organization

HOSPITAL MEDICINE SERVICES OF VA, LLCAs reported in NPPES

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

Authorized official

Name

Vyvyan Derouen

Title

Vice President

Phone

(512) 482-4107

Specialties & licenses 1

Addresses

Tax ID family

Hospital Medicine Services of VA LLC2 organizations share this tax ID, including this one

Other organizations with this tax ID 1

Organizations that report the same tax identification number in the National Provider Directory.

• Hospital Medicine Services of VA, LLC

  • Hospitalist Physician
  • Fredericksburg, VA
  • NPI 1932034071
  NPD tax ID

Parent organization (reported in NPPES) 1

This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.

• Hospital Medicine Services of VA, LLC

  • Hospitalist Physician
  • Fredericksburg, VA
  • NPI 1083311146
  NPPES parent name

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

{
    "created_epoch": "1781654400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1781654400000",
    "number": "1851226096",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2000 HEALTH PARK DR",
            "city": "BRENTWOOD",
            "state": "TN",
            "postal_code": "370274525",
            "telephone_number": "615-373-7406"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1850 TOWN CENTER PKWY",
            "city": "RESTON",
            "state": "VA",
            "postal_code": "201903219",
            "telephone_number": "703-689-9000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "HOSPITAL MEDICINE SERVICES OF VA, LLC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "HOSPITAL MEDICINE SERVICES OF VA, LLC",
        "enumeration_date": "2026-06-17",
        "last_updated": "2026-06-17",
        "certification_date": "2026-06-17",
        "status": "A",
        "authorized_official_last_name": "DEROUEN",
        "authorized_official_first_name": "VYVYAN",
        "authorized_official_title_or_position": "VICE PRESIDENT",
        "authorized_official_telephone_number": "512-482-4107"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jason K Hong, DMD
• Won Sook Hong, R.PH.
• Charlotte Hordinski, BCBA
• Simone Horst, LCSW
• Sally Singer Horwatt, PH.D.
• Nabanita Hossain, MD
• Deshandria Hotchkiss, OTR/L
• Christine Marie Howard, PSY.D.
• Karrie Howard
• Allen Kinne Howe Jr., M.D.

• Internal Medicine Physician in Reston, VA
• Providers in Reston, VA by specialty
• Internal Medicine Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 17, 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.

Verify at the official NPI Registry.