Active NPI
Issam Abdelkarim Hussein Alawin, MBBS, MD
- Hematology & Oncology Physician
- Houston, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- Q5138
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Medical Oncology
- Education
- Other, 2007
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
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
- Houston Methodist Cypress Hospital
- Hillcrest Medical Center
- Houston Methodist Sugarland Hospital
- O U Medical Center
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| TMH Physician Associates PLLC | Current | Accepting new patients | |
| TMH Physician Associates PLLC | Current | Accepting new patients | |
| Utmb Faculty Group Practice | Current | Accepting new patients | |
| TMH Physician Associates PLLC | Past | Accepting new patients | |
| Methodist Radiology Associates, PLLC | Past | Accepting new patients | |
| Houston Methodist | Past | 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
- 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.
-
- Ophthalmology Physician
- Houston, TX
- NPI 1275779225
-
- Otolaryngology Physician
- Houston, TX
- NPI 1902614332
-
- General Practice Physician
- Galveston, TX
- NPI 1942241146
-
- Orthopaedic Surgery Physician
- Spring, TX
- NPI 1043061351
-
- Nurse Practitioner
- Houston, TX
- NPI 1992178693
-
- Diagnostic Radiology Physician
- Houston, TX
- NPI 1427235704
-
- Orthopaedic Surgery Physician
- Pearland, TX
- NPI 1386827442
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Houston, TX
- NPI 1083937593
-
- General Acute Care Hospital
- Sugar Land, TX
- NPI 1497871628
-
- General Acute Care Hospital
- Cypress, TX
- NPI 1629828405
-
- General Acute Care Hospital
- Tulsa, OK
- NPI 1629057229
-
- General Acute Care Hospital
- Oklahoma City, OK
- NPI 1649794157
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 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.