Quick answers
- Which hospitals does Mark P. Trisna work at?
- Medicare's official clinician data lists Mark P. Trisna at 2 hospitals: Covenant Medical Center and Houston Methodist Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark P. Trisna see patients?
- Medicare's clinician data lists 6 practice locations, including Houston, TX, Round Rock, TX and Lubbock, TX. Call before your visit to confirm the address.
- What is Mark P. Trisna's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Mark P. Trisna accept Medicare assignment?
- Yes. Medicare's clinician data says Mark P. Trisna 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 Mark P. Trisna?
- (281) 929-6291, as listed in official Medicare / NPI Registry data.
- What is Mark P. Trisna's NPI number?
- 1669799581. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark P. Trisna works
Medicare's Facility Affiliation Data lists Mark P. Trisna at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Covenant Medical CenterLubbock, TX · Acute Care Hospital · CCN 450040
- Houston Methodist HospitalHouston, TX · Acute Care Hospital · CCN 450358
Practice locations
Addresses where Mark P. Trisna is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 11800 Astoria BlvdHouston, TX 77089
- 11800 Astoria Blvd, Suite E2031.1Houston, TX 77089 (281) 929‑6291
- 1701 Sunset BlvdHouston, TX 77005 (713) 526‑5511
- 201 Seton Pkwy, Seton Medical Center WilliamsonRound Rock, TX 78665 (512) 324‑4000
- 3615 19th StLubbock, TX 79410 (806) 725‑0000
Group practices
Medicare enrollment lists Mark P. Trisna as a member of these groups (CMS data updated 2026-10-02).
- Memorial Hermann Medical Group762 clinicians in the group
- Hospitalist Medicine Physicians of Texas PLLC686 clinicians in the group
- Norman B Frankel Et Al PTR Medical Clinic of Houston57 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | University Of North Texas Hsc, College Of Osteopathic Med |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669799581 |
| 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