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.
The reviews listed below were collected independently of Cardiovascular Institute of the South (CIS) through rater8. Each review represents an authentic and verified patient experience.
Very professional, nice, & knowledgeable
(4 days ago)
Apr-2026
So easy to talk to!!
A very caring Doctor who is truly concerned for his patients
(1 week ago)
Apr-2026
Dr. Donnellan was nice and very easy to talk to. I did have a little problem understanding some of what he told but he was professional. Due to a back injury I have a problem sitting for long periods of time. And after the nurse was finished with me I did have to sit over 40 minutes in a room before the Dr.seen me.
(1 week ago)
Apr-2026
Very nice man. Easily understood and helpful. Seemed knowledgeable and accommodating
(1 week ago)
Apr-2026
Great and professional
(1 week ago)
Apr-2026
I was very impressed with Dr Donnellan!! He made me feel very comfortable. Will recommend him to all my friends and family.
(1 week ago)
Apr-2026
Dr. Donnellan explained very clearly what my ablation procedure entailed. He also recommended the Watchman implant. I’m very glad he did as I no longer need blood thinners. After a few days recovering, I could tell my heart was working much better! I was already on four blood pressure medications, he prescribed one that got my pressure into the normal range. After four months I feel like a different man, I can actually do activities again! There is no trace of A-FIB, excellent job!
(1 week ago)
Apr-2026
I was completely satisfied with my first visit. Dr. Donnellan laid out all my best options and thoroughly explained everything. He took his time and did not rush.
(1 week ago)
Apr-2026
Personally couldn't have had a better experience anywhere else! Super professional and respectful as well as the staff!!!
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.
See other doctors in Cardiovascular Institute of the South (CIS)
Very professional, nice, & knowledgeable
So easy to talk to!! A very caring Doctor who is truly concerned for his patients
Dr. Donnellan was nice and very easy to talk to. I did have a little problem understanding some of what he told but he was professional. Due to a back injury I have a problem sitting for long periods of time. And after the nurse was finished with me I did have to sit over 40 minutes in a room before the Dr.seen me.
Very nice man. Easily understood and helpful. Seemed knowledgeable and accommodating
Great and professional
I was very impressed with Dr Donnellan!! He made me feel very comfortable. Will recommend him to all my friends and family.
Dr. Donnellan explained very clearly what my ablation procedure entailed. He also recommended the Watchman implant. I’m very glad he did as I no longer need blood thinners. After a few days recovering, I could tell my heart was working much better! I was already on four blood pressure medications, he prescribed one that got my pressure into the normal range. After four months I feel like a different man, I can actually do activities again! There is no trace of A-FIB, excellent job!
I was completely satisfied with my first visit. Dr. Donnellan laid out all my best options and thoroughly explained everything. He took his time and did not rush.
Personally couldn't have had a better experience anywhere else! Super professional and respectful as well as the staff!!!
Dr. Donnellan is professional and Caring.