Daniel Siao Zhang, M.D

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

R3459 Issued in TX

Practice address

9110 Katy Freeway
Houston, TX 77055-7298

Phone

(713) 442-6900

NPI assigned

Mar 29, 2014

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 3

Electronic endpoints 4

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: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

GastroenterologyAlso: Internal Medicine

Education

University of Texas Southwestern Medical School at Dallas, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Kelsey-Seybold Medical Group, PLLCGroup PAC ID 9739093527, 941 clinicians

Practice addresses (Care Compare)

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dzhang33665@direct.kelsey-seybold.com

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.

• Kelsey-Seybold Medical Group, PLLC

  • Multi-Specialty Clinic/Center
  • Houston, TX
  • NPI 1013915255

  Internal Medicine

  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1396051200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1742256000000",
    "number": "1306264130",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9110 KATY FREEWAY",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770557298",
            "telephone_number": "713-442-6900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9110 KATY FREEWAY",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770557298",
            "telephone_number": "713-442-6900"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "13105 Wortham Center Dr",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770655611",
            "country_code": "US",
            "telephone_number": "713-442-4000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZHANG",
        "first_name": "DANIEL",
        "middle_name": "SIAO",
        "credential": "M.D",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-03-29",
        "last_updated": "2025-03-18",
        "certification_date": "2025-03-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "R3459",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "TX",
            "license": "R3459",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "415169801",
            "state": "TX"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "415169802",
            "state": "TX"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "415169803",
            "state": "TX"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "dzhang33665@direct.kelsey-seybold.com",
            "affiliation": "N",
            "endpointDescription": "digital contact information",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "13105 Wortham Center Dr",
            "city": "Houston",
            "state": "TX",
            "country_code": "US",
            "postal_code": "770655611",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://ssrx.ksnet.com/FhirProxy/api/FHIR/DSTU2/",
            "affiliation": "N",
            "endpointDescription": "FHIR endpoint URL",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "13105 Wortham Center Dr",
            "city": "Houston",
            "state": "TX",
            "country_code": "US",
            "postal_code": "770655611",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://ssrx.ksnet.com/FhirProxy/api/FHIR/DSTU2/",
            "affiliation": "N",
            "endpointDescription": "FHIR endpoint URL",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "15655 Cypress Wood Medical Dr Ste 100",
            "city": "Houston",
            "state": "TX",
            "country_code": "US",
            "postal_code": "770141487",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "dzhang33665@direct.kelsey-seybold.com",
            "affiliation": "N",
            "endpointDescription": "digital contact information",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "15655 Cypress Wood Medical Dr Ste 100",
            "city": "Houston",
            "state": "TX",
            "country_code": "US",
            "postal_code": "770141487",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Andrea Zhang
• Annie Yiran Zhang, MD
• Bingnan Zhang, M.D.
• Caroline Chuying Zhang, MD
• Chaohui Zhang, LAC, DIPL, OMCH
• Daniel Y Zhang
• Dongwei Zhang, M.D., PH.D.
• Emily Zhang, MD
• Eric Zhang
• Fangyi Zhang, M.D.

• Gastroenterology Physician in Houston, TX
• Providers in Houston, TX by specialty
• Gastroenterology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 18, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.