Summary

Dr. William Cassidy is a gastroenterologist with expertise in internal medicine and cardiovascular disease, bringing over five decades of medical experience to patient care. He earned his medical degree from Louisiana State University School of Medicine in New Orleans and completed his residency at LAC USC Medical Center. With 51 years in practice, Dr. Cassidy has developed extensive knowledge in digestive health, heart conditions, and comprehensive internal medicine.

Dr. Cassidy practices at Our Lady Of The Lake Regional Medical Center in Baton Rouge, Louisiana, and maintains affiliations with Baton Rouge General Medical Center Mid City. His comprehensive training allows him to address complex medical conditions that often involve multiple body systems. Patients have given Dr. Cassidy an average rating of 3.4 out of 5 on Vitals, reflecting their experiences with his care.

Overview based on verified provider data

Quick Facts

  • 3.4
  • 51 years of experience
  • Lac Usc Medical Center
  • 2 written reviews
  • 3 specialties
  • 19 areas of expertise
  • 3 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Male

Office Location

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Dr. William Morgan Cassidy, MDAshley Anderson, APRNChimdi Mfebe, APRNWhitney Morgan, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
3.4 
51 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English
Baton Rouge , LASACRAMENTO , CALittle Rock , ARTallahassee , FL
Med School: Louisiana State University School Of Medicine In New Orleans Med School: East Tennessee State University - Quillen College of Medicine Med School: Chamberlain University College of Nursing Med School: Chamberlain University
Current Profile
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Insurance Plans Accepted by Dr. William Morgan Cassidy

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. William Morgan Cassidy has the following 3 specialties

Specialty Expertise

Dr. William Morgan Cassidy has the following 19 areas of expertise

  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acute Coronary Syndrome (ACS)
  • Arrhythmia
  • Atherosclerosis
  • Blood Clot
  • Cardiovascular Disease
  • Constipation
  • Heart Attack
  • Heart Block
  • Heart Diseases
  • Heart Failure
  • Hepatitis C
  • High Cholesterol
  • Hypertension
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Stroke
  • Ulcerative Colitis
  • Unstable Angina

Certifications, License, & Education

51 Years Experience

MEDICAL LICENSE

Medical Doctor, Louisiana, 2026, Active

EDUCATION & TRAINING

Residency

Lac Usc Medical Center

Medical School

Louisiana State University School Of Medicine In New OrleansGraduated in 1983
Louisiana State University School Of Medicine In New OrleansGraduated in 1975

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Frequently Asked Questions

Is Dr. William Cassidy accepting new patients?
Dr. William Cassidy has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. William Cassidy accept my insurance?
You can see the insurance plans that Dr. William Cassidy accepts on their Vitals profile.
How can I make an appointment with Dr. William Cassidy?
You can find contact information for Dr. William Cassidy here on Vitals.
Which hospitals is Dr. William Cassidy affiliated with?
Dr. William Cassidy is affiliated with Baton Rouge General Medical Center Mid City.
Does Dr. William Cassidy accept virtual/telehealth appointments?
Dr. William Cassidy has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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