Individual provider Active NPI

Diep Bui, M.D.

  • Epilepsy Physician
  • San Antonio, TX
National Provider Identifier
1649400359
Registry record updated Oct 15, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Epilepsy PhysicianTaxonomy code 2084E0001X
License
S6141 Issued in TX
Practice address
4502 Medical Dr FL 10
San Antonio, TX 78229-4402
Phone
(210) 743-0670
Fax
(210) 567-4659
NPI assigned
Jul 16, 2009
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 15, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Epilepsy Physician 2084E0001X S6141 TX Primary
Neurology Physician 2084N0400X S6141 TX

Addresses

Primary practice location

4502 Medical Dr FL 10
San Antonio, TX 78229-4402

Mailing address

4502 Medical Dr FL 10
San Antonio, TX 78229-4402
Phone (210) 743-0670

Other identifiers 1

IdentifierTypeStateIssuer
411686501MedicaidTX

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC, 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
I20160524000213 DC Practitioner - Neurology 1759670243
I20200611001563 TX Practitioner - Neurology 1759670243 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Neurology
Education
Other, 2004
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
University of Texas Health Science Center at San AntonioGroup PAC ID 0042128548, 1,290 clinicians

Practice addresses (Care Compare)

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

Hospital & facility affiliations

  • University Health System Hospital, San Antonio, TX, CCN 450213
  • Ut Health San Antonio Multispecialty & Research Ho Hospital, San Antonio, TX, CCN 670335

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
The University of Texas Health Science Center at San Antonio CurrentSince Jul 1, 2020 Accepting new patients
University of Texas Health Science Center at San Antonio Internal Medicine Current Accepting new patients
University of Texas Health Science Center at San Antonio CurrentSince Jul 1, 2020 Accepting new patients
Pavel Klein Neurology Past Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients
University of Texas Health Science Center at San Antonio Past Accepting new patients

Locations

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

4940 Charles Katz
San Antonio, TX 78229
Phone (210) 450-9700

4502 Medical Dr
Fl 10
San Antonio, TX 78229
Phone (210) 743-0670

4940 Charles Katz
Fl 1
San Antonio, TX 78229
Phone (210) 450-9680

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

8300 Floyd Curl Dr
San Antonio, TX 78229
Phone (210) 450-9300

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/7347/brand/1/csg/1/fhir/r4
  • Direct secure messaging: dbui32834@direct.utmsa.com

Organizations & group practices 6

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

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": "1247702400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760486400000",
    "number": "1649400359",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR FL 10",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-743-0670",
            "fax_number": "210-567-4659"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR FL 10",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-743-0670",
            "fax_number": "210-567-4659"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BUI",
        "first_name": "DIEP",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-07-16",
        "last_updated": "2025-10-15",
        "certification_date": "2025-10-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084E0001X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Epilepsy",
            "state": "TX",
            "license": "S6141",
            "primary": true
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "TX",
            "license": "S6141",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "411686501",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Antonio, TX

Sources for this page

Verify at the official NPI Registry.