Katherine A. Trettin, MD

Hospitals where Katherine A. Trettin works

Medicare's Facility Affiliation Data lists Katherine A. Trettin at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Ochsner LSU Health ShreveportShreveport, LA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 190098

Practice locations

Addresses where Katherine A. Trettin is enrolled with Medicare (CMS data updated October 2, 2026).

• 1541 Kings HwyShreveport, LA 71103

Specialties

• Dermatologyprimary
• Internal Medicinealso

Find other Dermatology doctors in Louisiana →

Other dermatologists in Shreveport

Clinicians with the same Medicare primary specialty in Shreveport, LA — not a recommendation.

• Laura S. Haynie, MD
• Steven C. Heard, MD
• Elizabeth L. Clemons, MD
• Jason J. Romero, MD
• David J. Clemons, MD
• Donald I. Posner, MD
• Josephine M. Futrell, MD
• Anne B. Bryan, MD

All dermatologists in Shreveport →

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
5. Medicare Care Compare — official Medicare tool to look up clinicians