NPIMap

Organization Active NPI

Hospital Medicine Services of TX, PLLC

  • Hospitalist Physician
  • Conroe, TX
National Provider Identifier
1821917899
Registry record updated Jul 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
Legal business name
HOSPITAL MEDICINE SERVICES OF TX, PLLC
Practice address
504 Medical Center Blvd
Conroe, TX 77304-2808
Phone
(936) 539-1111
NPI assigned
Jul 14, 2026
Organization subpart
Yes
Parent organization
HOSPITAL MEDICINE SERVICES OF TX, PLLCAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Jul 14, 2026

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

Authorized official

Name
Vyvyan Derouen
Title
President
Phone
(512) 482-4107

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208M00000X Primary

Addresses

Primary practice location

504 Medical Center Blvd
Conroe, TX 77304-2808

Mailing address

2000 Health Park Dr
Brentwood, TN 37027-4525
Phone (615) 373-7406

National Provider Directory

National Provider Directory
Tax ID family
Hospital Med Serv of TX PC8 organizations share this tax ID, including this one

Other organizations with this tax ID 7

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

Ownership & related parties

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.

NPI Registry JSON

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

{
    "created_epoch": "1783987200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1783987200000",
    "number": "1821917899",
    "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": "504 MEDICAL CENTER BLVD",
            "city": "CONROE",
            "state": "TX",
            "postal_code": "773042808",
            "telephone_number": "936-539-1111"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "HOSPITAL MEDICINE SERVICES OF TX, PLLC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "HOSPITAL MEDICINE SERVICES OF TX, PLLC",
        "enumeration_date": "2026-07-14",
        "last_updated": "2026-07-14",
        "certification_date": "2026-07-14",
        "status": "A",
        "authorized_official_last_name": "DEROUEN",
        "authorized_official_first_name": "VYVYAN",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "512-482-4107"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Hospitalist",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Conroe, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 14, 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.