Quick answers
- Which hospitals does Louis Diab work at?
- Medicare's official clinician data lists Louis Diab at 1 hospital: Houston Methodist Sugar Land Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Louis Diab see patients?
- Medicare's clinician data lists 5 practice locations, including Sugar Land, TX. Call before your visit to confirm the address.
- What is Louis Diab's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Louis Diab accept Medicare assignment?
- Yes. Medicare's clinician data says Louis Diab accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Louis Diab?
- (713) 442-9100, as listed in official Medicare / NPI Registry data.
- What is Louis Diab's NPI number?
- 1578092474. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Louis Diab works
Medicare's Facility Affiliation Data lists Louis Diab at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Houston Methodist Sugar Land HospitalSugar Land, TX · Acute Care Hospital · CCN 450820
Practice locations
Addresses where Louis Diab is enrolled with Medicare (CMS data updated 2026-10-02).
- 11555 University BlvdSugar Land, TX 77478 (713) 442‑9100
- 16605 Southwest FwySugar Land, TX 77479 (281) 275‑0800
- 16605 Southwest Fwy 400 Mob3, Methodist Family Medicine GroupSugar Land, TX 77479 (281) 275‑0800
- 16605 SW Fwy 410, Methodist Diag Card of HoustonSugar Land, TX 77479 (281) 274‑0148
- 16655 Southwest FwySugar Land, TX 77479
Group practices
Medicare enrollment lists Louis Diab as a member of these groups (CMS data updated 2026-10-02).
- TMH Physician Associates PLLC1,690 clinicians in the group
- Kelsey-Seybold Medical Group, PLLC957 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Sugar Land
Clinicians with the same Medicare primary specialty in Sugar Land, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578092474 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians