Individual provider Active NPI

Issam Abdelkarim Hussein Alawin, MBBS, MD

  • Hematology & Oncology Physician
  • Houston, TX
National Provider Identifier
1295040806
Registry record updated Jun 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
Q5138 Issued in TX
Practice address
18400 Katy Fwy Ste 220
Houston, TX 77094-1827
Phone
(832) 522-8521
Fax
(832) 522-8624
NPI assigned
Aug 9, 2010
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 10, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology & Oncology Physician 207RH0003X Q5138 TX Primary

Addresses

Primary practice location

18400 Katy Fwy Ste 220
Houston, TX 77094-1827

Mailing address

18400 Katy Fwy Ste 220
Houston, TX 77094-1827
Phone (832) 522-8521

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20151106001342 TX Practitioner - Medical OncologyPractitioner - Internal MedicinePractitioner - Hematology 0648580449 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Medical OncologyAlso: Internal Medicine
Education
Other, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
TMH Physician Associates PLLCGroup PAC ID 4486711744, 1,881 clinicians
Houston Methodist Specialty PhysiciansGroup PAC ID 5193239796, 1,498 clinicians

Practice addresses (Care Compare)

18400 Katy Fwy
Suite 690
Houston, TX 77094-1378
Phone (832) 522-8600

6445 Main St
Suite 2500
Houston, TX 77030-1502
Phone (713) 441-3150

Hospital & facility affiliations

  • Houston Methodist West Hospital Hospital, Houston, TX, CCN 670077
  • Houston Methodist Cypress Hospital Hospital, Cypress, TX, CCN 670342
  • Hillcrest Medical Center Hospital, Tulsa, OK, CCN 370001
  • Houston Methodist Sugarland Hospital Hospital, Sugar Land, TX, CCN 450820
  • O U Medical Center Hospital, Oklahoma City, OK, CCN 370093

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
TMH Physician Associates PLLC CurrentSince Oct 9, 2023 Accepting new patients
TMH Physician Associates PLLC CurrentSince Oct 9, 2023 Accepting new patients
Utmb Faculty Group Practice CurrentSince Oct 5, 2015 Accepting new patients
TMH Physician Associates PLLC PastSince Jun 15, 2025 Accepting new patients
Methodist Radiology Associates, PLLC Past Accepting new patients
Houston Methodist PastSince Jun 15, 2025 Accepting new patients

Locations

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

7575 San Felipe St
Ste 155
Houston, TX 77063
Phone (713) 266-9955

18400 Katy Fwy
Ste 670
Houston, TX 77094
Phone (281) 398-4944

18400 Katy Fwy
Ste 690
Houston, TX 77094
Phone (832) 522-8600

16605 Southwest Fwy
Ste 400
Sugar Land, TX 77479
Phone (281) 275-0800

Interoperability endpoints

  • Direct secure messaging: ialawin465253@directhoustonmethodist.org

Organizations & group practices 7

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 5

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": "1281312000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749513600000",
    "number": "1295040806",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "18400 KATY FWY STE 220",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770941827",
            "telephone_number": "832-522-8521",
            "fax_number": "832-522-8624"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "18400 KATY FWY STE 220",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770941827",
            "telephone_number": "832-522-8521",
            "fax_number": "832-522-8624"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALAWIN",
        "first_name": "ISSAM",
        "middle_name": "ABDELKARIM HUSSEIN",
        "name_prefix": "Dr.",
        "credential": "MBBS, MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2010-08-09",
        "last_updated": "2025-06-10",
        "certification_date": "2025-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "TX",
            "license": "Q5138",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Houston, TX

Sources for this page

Verify at the official NPI Registry.