Dr. Katherine Brennan is a cardiologist at Cardiovascular Institute of the South in Lafayette.
Dr. Brennan attended Loyola University in Baltimore, Maryland where she earned a bachelor’s degree in biology and graduated summa cum laude. Her studies continued at Sidney Kimmel Medical College at Thomas Jefferson University in Philadelphia, Pennsylvania where she earned her doctorate, and returned for her cardiovascular disease fellowship. Her internship and residency in internal medicine were completed at Beth Israel Deaconess Medical Center in Boston, Massachusetts.
Dr. Katherine Brennan is a cardiologist at Cardiovascular Institute of the South in Lafayette.
Dr. Brennan attended Loyola University in Baltimore, Maryland where she earned a bachelor’s degree in biology and graduated summa cum laude. Her studies continued at Sidney Kimmel Medical College at Thomas Jefferson University in Philadelphia, Pennsylvania where she earned her doctorate, and returned for her cardiovascular disease fellowship. Her internship and residency in internal medicine were completed at Beth Israel Deaconess Medical Center in Boston, Massachusetts.
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.
Trying to push statins when not needed. Had to go 4 times for what literally could have been done in 2 and a phone call instead of going in..
(1 week ago)
Apr-2026
Very nice! Wasn’t in a rush, asked me a lot of questions and let me ask as many as I wanted.
(1 week ago)
Apr-2026
Greetings Thanks you for caring for me
(1 week ago)
Apr-2026
I’m such a happy camper now! So lucky to have found a great female Doctor! Everyone at the office was great too!
(1 week ago)
Mar-2026
Easy to communicate. Explained what was going to done and why.
(1 week ago)
Mar-2026
Dr. Brennan was so thorough, took time and explained everything to me. Answered all my questions and my husband’s. The staff were very friendly and knowledgeable.
(2 weeks ago)
Mar-2026
Dr Brennan is the most attentive Dr I have ever had. I can’t believe how great she is at listening , her sitting at eye level makes us know she is with us in these moments.. Her calmness helps us to be calm!!! Oh and the nurses are also great at not making us feel rushed… Thanks to all from the front desk to the back everyone is kind!!!
(2 weeks ago)
Mar-2026
Fine. Ok.
(2 weeks ago)
Mar-2026
Always professional always keeps up with the latest medicine always listens to me and what’s going on n my body.
(3 weeks ago)
Mar-2026
Dr Brennan is great, she listens to understand not just to respond. Takes time to explain and discuss information, appts don’t feel rushed.
Dr. Katherine Brennan is a cardiologist at Cardiovascular Institute of the South (CIS) in Lafayette.
Dr. Brennan attended Loyola University in Baltimore, Maryland where she earned a bachelor’s degree in biology and graduated summa cum laude. Her studies continued at Sidney Kimmel Medical College at Thomas Jefferson University in Philadelphia, Pennsylvania where she earned her doctorate, and returned for her cardiovascular disease fellowship. Her internship and residency in internal medicine were completed at Beth Israel Deaconess Medical Center in Boston, Massachusetts.
Dr. Brennan is certified in internal medicine and echocardiography. Her clinical focuses include general cardiology, echocardiography, prevention, and cardiovascular disease in women. She is a member of Phi Beta Kappa and many additional honor societies. In her spare time, she enjoys playing the piano, attending group workout classes, and baking.
See other doctors in Cardiovascular Institute of the South (CIS)
Trying to push statins when not needed. Had to go 4 times for what literally could have been done in 2 and a phone call instead of going in..
Very nice! Wasn’t in a rush, asked me a lot of questions and let me ask as many as I wanted.
Greetings Thanks you for caring for me
I’m such a happy camper now! So lucky to have found a great female Doctor! Everyone at the office was great too!
Easy to communicate. Explained what was going to done and why.
Dr. Brennan was so thorough, took time and explained everything to me. Answered all my questions and my husband’s. The staff were very friendly and knowledgeable.
Dr Brennan is the most attentive Dr I have ever had. I can’t believe how great she is at listening , her sitting at eye level makes us know she is with us in these moments.. Her calmness helps us to be calm!!! Oh and the nurses are also great at not making us feel rushed… Thanks to all from the front desk to the back everyone is kind!!!
Fine. Ok.
Always professional always keeps up with the latest medicine always listens to me and what’s going on n my body.
Dr Brennan is great, she listens to understand not just to respond. Takes time to explain and discuss information, appts don’t feel rushed.