Quick answers
- Which hospitals does Thaddeus Lis work at?
- Medicare's official clinician data lists Thaddeus Lis at 1 hospital: Houston Methodist Clear Lake Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Thaddeus Lis see patients?
- Medicare's clinician data lists 3 practice locations, including Lake Jackson, TX and Houston, TX. Call before your visit to confirm the address.
- What is Thaddeus Lis's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Thaddeus Lis accept Medicare assignment?
- Yes. Medicare's clinician data says Thaddeus Lis 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 Thaddeus Lis?
- (713) 496-7555, as listed in official Medicare / NPI Registry data.
- What is Thaddeus Lis's NPI number?
- 1669459384. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Thaddeus Lis works
Medicare's Facility Affiliation Data lists Thaddeus Lis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Houston Methodist Clear Lake HospitalNassau Bay, TX · Acute Care Hospital · CCN 450709
Practice locations
Addresses where Thaddeus Lis is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Medical DrLake Jackson, TX 77566 (713) 496‑7555
- 18300 Houston Methodist DrHouston, TX 77058 (281) 333‑5503
- 7600 Beechnut StHouston, TX 77074 (713) 620‑4000
Group practices
Medicare enrollment lists Thaddeus Lis as a member of this group (CMS data updated 2026-10-02).
- U S Anesthesia Partners of Texas, PA2,752 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Lake Jackson
Clinicians with the same Medicare primary specialty in Lake Jackson, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669459384 |
| 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