Individual provider Active NPI

Louma Basma Rustam, MD

  • Gastroenterology Physician
  • League City, TX
National Provider Identifier
1164918140
Registry record updated Mar 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
V2251 Issued in TX
Practice address
2240 Gulf Fwy S Ste 2.100
League City, TX 77573-5143
Phone
(832) 505-1600
Fax
(281) 309-0419
NPI assigned
Jul 2, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 23, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X MD-53111 IA
Gastroenterology Physician 207RG0100X V2251 TX Primary

Addresses

Primary practice location

2240 Gulf Fwy S Ste 2.100
League City, TX 77573-5143

Mailing address

PO Box 2758
Waterloo, IA 50704-2758
Phone (319) 235-5390

Other practice location 1

200 Hawkins Dr
Iowa City, IA 52242-1009
Phone (319) 356-3603

Other practice location 2

1015 S Hackett Rd
Waterloo, IA 50701-3543
Phone (319) 234-5990

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IA, 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
I20240717003645 IA Practitioner - GastroenterologyPractitioner - Internal Medicine 8123370939 Reassigns benefits to 1 organization
I20240903002002 TX Practitioner - Gastroenterology 8123370939 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Other, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Utmb Faculty Group PracticeGroup PAC ID 3375456734, 1,083 clinicians

Practice addresses (Care Compare)

2240 Gulf Fwy S
Suite 2.100
League City, TX 77573-5143
Phone (832) 505-1800

Hospital & facility affiliations

  • University of Texas Medical Branch Galveston Hospital, Galveston, TX, CCN 450018

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy22
Upper gastrointestinal (GI) endoscopy for acid reflux26

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD-53111IAMDGastroenterology Physician
V2251TXMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Allen Memorial Hospital Corporation Current Accepting new patients
Allen Memorial Hospital Corporation CurrentSince Sep 1, 2024 Accepting new patients
Utmb Faculty Group Practice CurrentSince Oct 15, 2024 Accepting new patients
Floyd County Memorial Hospital Commission Past Accepting new patients

Locations

1600 1st St E
Independence, IA 50644
Phone (319) 332-0999

1825 Logan Ave
Waterloo, IA 50703
Phone (319) 235-3886

301 University Blvd
Galveston, TX 77555
Phone (409) 747-1883

2240 Gulf Fwy S
Ste 2100
League City, TX 77573
Phone (832) 505-1600

Interoperability endpoints

  • Direct secure messaging: lrustam69603@direct.utmb.edu

Organizations & group practices 4

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 1

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": "1530489600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774224000000",
    "number": "1164918140",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 2758",
            "city": "WATERLOO",
            "state": "IA",
            "postal_code": "507042758",
            "telephone_number": "319-235-5390"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2240 GULF FWY S STE 2.100",
            "city": "LEAGUE CITY",
            "state": "TX",
            "postal_code": "775735143",
            "telephone_number": "832-505-1600",
            "fax_number": "281-309-0419"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "200 Hawkins Dr",
            "address_purpose": "LOCATION",
            "city": "Iowa City",
            "state": "IA",
            "postal_code": "522421009",
            "country_code": "US",
            "telephone_number": "319-356-3603",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1015 S Hackett Rd",
            "address_purpose": "LOCATION",
            "city": "Waterloo",
            "state": "IA",
            "postal_code": "507013543",
            "country_code": "US",
            "telephone_number": "319-234-5990",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RUSTAM",
        "first_name": "LOUMA",
        "middle_name": "BASMA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-07-02",
        "last_updated": "2026-03-23",
        "certification_date": "2026-03-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "IA",
            "license": "MD-53111",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "TX",
            "license": "V2251",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in League City, TX

Sources for this page

Verify at the official NPI Registry.