Individual provider Active NPI

Ryan Trong Nguyen, DO

  • Cardiovascular Disease Physician
  • Houston, TX
National Provider Identifier
1881222594
Registry record updated Aug 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
V3656 Issued in TX
Practice address
4101 Greenbriar Dr Ste 100
Houston, TX 77098-5244
Phone
(713) 797-0200
Fax
(713) 797-0200
NPI assigned
Mar 29, 2020
Last updated
Aug 5, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 5, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Cardiovascular Disease Physician 207RC0000X V3656 TX Primary

Addresses

Primary practice location

4101 Greenbriar Dr Ste 100
Houston, TX 77098-5244

Mailing address

4101 Greenbriar Dr Ste 100
Houston, TX 77098-5244
Phone (713) 797-0200

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260325001421 TX Practitioner - Hospitalist 0749764975 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hospitalist
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Houston Methodist Specialty PhysiciansGroup PAC ID 5193239796, 1,498 clinicians

Practice addresses (Care Compare)

6445 Main St
Suite 2500
Houston, TX 77030-1502
Phone (713) 441-3150

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy, Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
TMH Physician Associates PLLC Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: rnguyen333278@directhoustonmethodist.org

Organizations & group practices 2

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.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1585440000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785888000000",
    "number": "1881222594",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4101 GREENBRIAR DR STE 100",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770985244",
            "telephone_number": "713-797-0200",
            "fax_number": "713-797-0200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4101 GREENBRIAR DR STE 100",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770985244",
            "telephone_number": "713-797-0200",
            "fax_number": "713-797-0200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "RYAN",
        "middle_name": "TRONG",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-29",
        "last_updated": "2026-08-05",
        "certification_date": "2026-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "TX",
            "license": "V3656",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Houston, TX

Sources for this page

Verify at the official NPI Registry.