Quick answers
- Which hospitals does Mark Trahan work at?
- Medicare's official clinician data lists Mark Trahan at 5 hospitals: Beauregard Memorial Hospital, CHRISTUS Ochsner St Patrick Hospital, Lake Charles Memorial Hospital, Ochsner American Legion Hospital and West Calcasieu Cameron Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Trahan see patients?
- Medicare's clinician data lists 3 practice locations, including Lake Charles, LA. Call before your visit to confirm the address.
- What is Mark Trahan's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Mark Trahan accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Trahan 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 Trahan?
- (337) 494-3036, as listed in official Medicare / NPI Registry data.
- What is Mark Trahan's NPI number?
- 1679872568. 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 Trahan works
Medicare's Facility Affiliation Data lists Mark Trahan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beauregard Memorial HospitalDeridder, LA · Acute Care Hospital · CCN 190050
- CHRISTUS Ochsner St Patrick HospitalLake Charles, LA · Acute Care Hospital · CCN 190027
- Lake Charles Memorial HospitalLake Charles, LA · Acute Care Hospital · CCN 190060
- Ochsner American Legion HospitalJennings, LA · Acute Care Hospital · CCN 190053
- West Calcasieu Cameron HospitalSulphur, LA · Acute Care Hospital · CCN 190013
Practice locations
Addresses where Mark Trahan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1701 Oak Park BlvdLake Charles, LA 70601 (337) 494‑3036
- 2770 3rd Ave, Suite 125Lake Charles, LA 70601 (337) 494‑2674
- 524 Doctor Michael Debakey DrLake Charles, LA 70601 (337) 436‑2511
Group practices
Medicare enrollment lists Mark Trahan as a member of these groups (CMS data updated 2026-10-02).
- Radiology Associates of Southwest Louisiana102 clinicians in the group
- Second Avenue Mri LLC10 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Lake Charles
Clinicians with the same Medicare primary specialty in Lake Charles, LA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In New Orleans |
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679872568 |
| 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