Skip to main content
William Cassidy, MD, Gastroenterology, Baton Rouge, LA

William Morgan Cassidy MD

Hepatology & Liver Transplantation


Physician

Join to view full profile
  • Lsu Healthcare Network3401 North Blvd, Suite 400Baton Rouge, LA 70806

  • Phone+1 225-381-2755

Dr. Cassidy is on Doximity

As a Doximity member, you’ll join more than three million U.S. healthcare professionals—including 85+% of physicians, and 2/3 of all NPs and PAs—in a private, secure network.

  • Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
  • Connect with colleagues in the same hospital or clinic.
  • Read the latest clinical news, personalized to your specialty.

Education & Training

  • University of Southern California/Los Angeles General Medical Center (USC/LA General)
    University of Southern California/Los Angeles General Medical Center (USC/LA General)Fellowship, Gastroenterology, 1987 - 1989
  • University of Southern California/Los Angeles General Medical Center (USC/LA General)
    University of Southern California/Los Angeles General Medical Center (USC/LA General)Residency, Internal Medicine, 1983 - 1987
  • Louisiana State University School of Medicine in New Orleans
    Louisiana State University School of Medicine in New OrleansClass of 1983

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 1985 - Present
  • LA State Medical License
    LA State Medical License 1983 - 2026
  • Internal Medicine
    American Board of Internal Medicine Internal Medicine

Clinical Trials

Publications & Presentations

PubMed

Press Mentions

  • Why Medical Guidance Shouldn’t Come from Washington
    Why Medical Guidance Shouldn’t Come from WashingtonDecember 6th, 2025

Viewing the full profile is available to verified healthcare professionals only.

Find your profile and take control of your online presence: