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.

Very informative. He made sure I understood what was going on with my heart. He used words that I understood and showed me on the diagrams what he was talking about.
Professional and concerned about my wellbeing. Kind and easy to converse with. It is imperative to have a Physician that is respectful and understanding. It is very comforting. It is already difficult and uncomfortable having to see a physician about one’s health. Especially regarding that important muscle inside your body that is keeping you alive. Thank you Dr. Donnellan
Absolutely amazing
Very kind, personable and knowledgeable.
Dr.Donnellan was very informative and knowledgeable explains everything
Ist visit with him. Very pleased with him
Very professional and caring
Exceptionally good doctor. Recommmends what is best for his patients. Takes his time explaining whatever questions you have for him.
He is amazing doctor I feel so comfortable around him. And so caring
Very professional.