Dr. Donnellan holds a Bachelor of Science degree in Physiology from the University College Cork in Ireland, where he also earned his medical degree (MB, BCh, BAO). He completed an internal medicine program and cardiovascular medicine fellowship at the Cleveland Clinic Foundation, which is also where he served as a Fellow in clinical cardiac electrophysiology. Since 2022, he worked at Tulane University as a Professor of Medicine in Cardiac Electrophysiology and he is currently completing a Master’s in Business Administration at Tulane.
Dr. Donnellan holds a Bachelor of Science degree in Physiology from the University College Cork in Ireland, where he also earned his medical degree (MB, BCh, BAO). He completed an internal medicine program and cardiovascular medicine fellowship at the Cleveland Clinic Foundation, which is also where he served as a Fellow in clinical cardiac electrophysiology. Since 2022, he worked at Tulane University as a Professor of Medicine in Cardiac Electrophysiology and he is currently completing a Master’s in Business Administration at Tulane.
Dr. Eoin Donnellan is an electrophysiologist at Cardiovascular Institute of the South (CIS) in Lafayette.
Dr. Donnellan holds a Bachelor of Science degree in Physiology from the University College Cork in Ireland, where he also earned his medical degree (MB, BCh, BAO). He completed an internal medicine program and cardiovascular medicine fellowship at the Cleveland Clinic Foundation, which is also where he served as a Fellow in clinical cardiac electrophysiology. Since 2022, he worked at Tulane University as a Professor of Medicine in Cardiac Electrophysiology and he is currently completing a Master’s in Business Administration at Tulane.
Dr. Donnellan is board certified in internal medicine, cardiovascular medicine and cardiac electrophysiology. He has earned multiple research awards and has published over 150 manuscripts, abstracts and presentations during his career, demonstrating his passion for knowledge and learning.

This was our first visit with Dr. Donnellan, so far I love him! Super knowledgeable and calming. Very patient—sat with us for half an hour explaining things. His staff was very friendly and helpful. So far—a great experience.
Great visit
Very thorough.
He was exceptionalhelpef me a great deal very friendly and took time to explain everything
Very attentive and answered all questions.
Very Articulate about The Afib procedure
Straight forward.
Excellent
He is a very good doctor.
Very caring Dr. I will continue to see him.