Individual provider Active NPI

Christian H.L. Nguyen, MD

  • Internal Medicine Physician
  • San Antonio, TX
National Provider Identifier
1629573274
Registry record updated Jan 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
T4565 Issued in TX
Practice address
4502 Medical Dr
San Antonio, TX 78229-4402
Phone
(210) 358-4000
NPI assigned
Mar 27, 2018
Last updated
Jan 9, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 9, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X T4565 TX
Internal Medicine Physician 207R00000X T4565 TX Primary

Addresses

Primary practice location

4502 Medical Dr
San Antonio, TX 78229-4402

Mailing address

PO Box 22000
San Angelo, TX 76902-7200
Phone (214) 998-9041

Other practice location 1

120 E Harris Ave
San Angelo, TX 76903-5904
Phone (325) 747-6741

Other names 1

  • Christian Q Nguyen Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in LA, TX2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20220218001554 LA Practitioner - Internal Medicine 1557613486 Reassigns benefits to 1 organization
I20240314003974 TX Practitioner - HospitalistPractitioner - Internal Medicine 1557613486 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Internal Medicine
Education
Cooper Medical School of Rowan University, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Shannon ClinicGroup PAC ID 0840103727, 550 clinicians

Practice addresses (Care Compare)

120 E Harris Ave
San Angelo, TX 76903-5904
Phone (325) 747-6741

4502 Medical Dr
San Antonio, TX 78229-4402
Phone (210) 358-4000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
82.63 of 100Reported as group
Quality
78.21
Promoting interoperability
96
Improvement activities
40
Cost
67.22

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
T4565TXMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The University of Texas Health Science Center at San Antonio CurrentSince Mar 1, 2026 Accepting new patients
Hni Medical Services at Glenwood, LLC Internal Medicine CurrentSince Jan 3, 2022 Accepting new patients
University of Texas Health Science Center at San Antonio Internal Medicine CurrentSince Mar 1, 2026 Accepting new patients
Shannon Clinic Internal Medicine CurrentSince Feb 1, 2024 Accepting new patients
Shannon Medical Center Past Accepting new patients

Locations

503 McMillan Rd
West Monroe, LA 71291
Phone (318) 329-4200

120 E Beauregard Ave
San Angelo, TX 76903
Phone (915) 658-1511

120 E Harris Ave
San Angelo, TX 76903
Phone (325) 653-6741

4502 Medical Dr
San Antonio, TX 78229
Phone (210) 358-3555

7703 Floyd Curl Dr
San Antonio, TX 78229
Phone (210) 450-3700

Organizations & group practices 5

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 2

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": "1522108800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767916800000",
    "number": "1629573274",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 22000",
            "city": "SAN ANGELO",
            "state": "TX",
            "postal_code": "769027200",
            "telephone_number": "214-998-9041"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-358-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "120 E Harris Ave",
            "address_purpose": "LOCATION",
            "city": "San Angelo",
            "state": "TX",
            "postal_code": "769035904",
            "country_code": "US",
            "telephone_number": "325-747-6741",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "CHRISTIAN",
        "middle_name": "H.L.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-03-27",
        "last_updated": "2026-01-09",
        "certification_date": "2026-01-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "TX",
            "license": "T4565",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "T4565",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "CHRISTIAN",
            "last_name": "NGUYEN",
            "middle_name": "Q",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in San Antonio, TX

Sources for this page

Verify at the official NPI Registry.