Verified Reviews
You can trust
You can trust
Specialty > Internal Medicine > Louisiana > Cardiovascular Institute of the South > Robert Drennan, M.D.
Robert Drennan, M.D.
Cardiovascular Institute of the South
Cardiology, Internal Medicine: Electrophysiologist
Baton Rouge and Zachary
4.9
1024 Ratings
409 Comments
Dr. Robert Drennan is board-certified in internal medicine, cardiology, nuclear cardiology and clinical electrophysiology. Dr. Drennan is a member of the American College of Cardiology, the Heart Rhythm Society, and the American Society of Nuclear Cardiology. He has earned many awards, such as the Douglas Scholarship and the College of Charleston Founder’s Scholarship.
4.9
1024 Ratings
409 Comments
Dr. Robert Drennan is board-certified in internal medicine, cardiology, nuclear cardiology and clinical electrophysiology. Dr. Drennan is a member of the American College of Cardiology, the Heart Rhythm Society, and the American Society of Nuclear Cardiology. He has earned many awards, such as the Douglas Scholarship and the College of Charleston Founder’s Scholarship.
The reviews listed below were collected independently of Cardiovascular Institute of the South through rater8. Each review represents an authentic and verified patient experience.
Read More
Dr. Robert Drennan is an electrophysiologist with CIS in Baton Rouge and Zachary. He completed his Bachelor of Science degree in biochemistry and molecular biology, as well as a Bachelor of Arts degree in chemistry, at the College of Charleston in South Carolina. He earned his doctorate of medicine from the University of South Carolina School of Medicine in Columbia, South Carolina. He completed a residency in internal medicine from the Tulane University School of Medicine in New Orleans. He also completed both his cardiology and electrophysiology fellowship at the Louisiana State University Health Science Center in New Orleans.
Dr. Drennan is board-certified in internal medicine, cardiology, nuclear cardiology and clinical electrophysiology. He previously worked at Touro Infirmary, and he also worked as a lab assistant at the Medical University of South Carolina and at the College of Charleston.
Dr. Drennan is a member of the American College of Cardiology, the Heart Rhythm Society, and the American Society of Nuclear Cardiology. He has presented, researched and written for numerous publications on a variety of topics including sudden cardiac arrest, atrial fibrillation, and peripheral arterial disease. He has earned many awards, such as the Douglas Scholarship and the College of Charleston Founder’s Scholarship.
© 2025 All Rights Reserved. rater8.
We love Dr Drennan. He takes time to listen and answer questions. We trust him and think he is an awesome Dr.
Thanks Dr Drennan. I feel very fortunate to have you as my physician.
Love Dr. Drennan! He is very personable and knowledgeable. I tell everybody they need to go to him.
Very interested in my health! Answered questions I need answers to
Nurse's are great, always with a smile. Doctor Drennan is very attentive. He listens when you talk, not just hears! Soft spoken, he doesn't try to talk above your head.
He was super. Explained the process in a way that was understandable while putting my apprehension at ease.
He was very polite, patient and helpful. He explained about the medication I was on and how to take it.
Excellent Doctor, will give you the time to explain your situation.
Really enjoy seeing Dr Drennan even if I was late and had to reschedule for a later ppt
Always caring, concerned and patient!