Alan Hsieh, MD

Primary specialty

Urology PhysicianTaxonomy code 208800000X

License

U4218 Issued in TX

Practice address

18833 Eastfield Dr
Webster, TX 77598-1305

Phone

(713) 442-4300

Fax

(346) 674-0410

NPI assigned

Mar 21, 2018

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Urology

Education

Rutgers New Jersey Medical School, 2018

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)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ahsieh64148@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
  Medicare reassignment Care Compare group NPD
• KS SC LLC

  • Ambulatory Surgical Clinic/Center
  • Webster, TX
  • NPI 1700648037
  NPD

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

{
    "created_epoch": "1521590400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758844800000",
    "number": "1508360736",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11511 SHADOW CREEK PKWY",
            "address_2": "HR/CREDENTIALING SERVICES",
            "city": "PEARLAND",
            "state": "TX",
            "postal_code": "775847298",
            "telephone_number": "713-442-0000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "18833 EASTFIELD DR",
            "city": "WEBSTER",
            "state": "TX",
            "postal_code": "775981305",
            "telephone_number": "713-442-4300",
            "fax_number": "346-674-0410"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5001 E Sam Houston Pkwy S",
            "address_purpose": "LOCATION",
            "city": "Pasadena",
            "state": "TX",
            "postal_code": "775053965",
            "country_code": "US",
            "telephone_number": "713-442-7100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HSIEH",
        "first_name": "ALAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-03-21",
        "last_updated": "2025-09-26",
        "certification_date": "2025-09-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208800000X",
            "taxonomy_group": "",
            "desc": "Urology",
            "state": "TX",
            "license": "U4218",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Howard L Dillard Jr MD PA
• Lauren Jalissa Howard, DO
• HPH Emergency Physicians PLLC
• HPH Physicians Group, Inc.
• Michelle L Hruska, PA-C
• Melissa S Hu, MD
• Derrick Huang, MD
• Kathie Huang, OD
• Shawn Huddleston, OTR, CHT
• Michaela Huey, PT,DPT

• Urology Physician in Webster, TX
• Providers in Webster, TX by specialty
• Urology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 26, 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.