Louis Diab, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

S7037 Issued in TX

Practice address

16811 Southwest Fwy Ste 300
Sugar Land, TX 77479-4728

Phone

(281) 276-0836

NPI assigned

Jun 6, 2017

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

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

HospitalistAlso: Internal Medicine

Education

University of Texas Medical Branch at Galveston, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

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

TMH Physician Associates PLLCGroup PAC ID 4486711744, 1,881 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Houston Methodist Sugarland Hospital Hospital, Sugar Land, TX, CCN 450820

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ldiab419355@direct.stlukeshealth.org
• Direct secure messaging: ldiab333171@directhoustonmethodist.org

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
• TMH Physician Associates PLLC

  • Ophthalmology Physician
  • Houston, TX
  • NPI 1275779225

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• TMH Physician Associates PLLC

  • Orthopaedic Surgery Physician
  • Spring, TX
  • NPI 1043061351
  NPD
• Texas Em-I Medical Services, PA

  • Internal Medicine Physician
  • Greenville, TX
  • NPI 1699981720
  NPD (past)

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

• Methodist Health Centers

  • General Acute Care Hospital
  • Sugar Land, TX
  • NPI 1497871628
  Care Compare affiliation

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

{
    "created_epoch": "1496707200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1747699200000",
    "number": "1578092474",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11511 SHADOW CREEK PKWY",
            "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": "16811 SOUTHWEST FWY STE 300",
            "city": "SUGAR LAND",
            "state": "TX",
            "postal_code": "774794728",
            "telephone_number": "281-276-0836"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1504 Ben Taub Loop",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "77030",
            "country_code": "US",
            "telephone_number": "713-873-2000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "11555 University Blvd",
            "address_purpose": "LOCATION",
            "city": "Sugar Land",
            "state": "TX",
            "postal_code": "774783889",
            "country_code": "US",
            "telephone_number": "713-442-9100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6620 Main St",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770302348",
            "country_code": "US",
            "telephone_number": "713-798-2450",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2002 Holcombe Blvd",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770304211",
            "country_code": "US",
            "telephone_number": "713-791-1414",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "7200 Cambridge St",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770304202",
            "country_code": "US",
            "telephone_number": "713-785-8537",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAB",
        "first_name": "LOUIS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-06-06",
        "last_updated": "2025-05-20",
        "certification_date": "2025-05-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "S7037",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "TX",
            "license": "S7037",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Hospitalist Physician in Sugar Land, TX
• Providers in Sugar Land, TX by specialty
• Hospitalist Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 20, 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.