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.
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.

Very professional, excellent bed side manners.I will be staying with her..
Great personality. Was up to date on my history. Very through. Felt good after exam.
I like her she was very good and informative
Very good Doctor she explained everything that I needed to know
Dr.Brennan was Very Warm & Informer Of Everything That She Wanted To Do & Why.She Calm My Nerves.It Is Clear To Me Not Only Does She Love What She Does.She Cares About Her Patient Me.We Need More Dr.Katerine Brennan.She's A Diamond In The Ruff.
Kind and professional. She is also thorough. Thank you!
Very thorough
Personable, thorough, professional. She really listened.
She listens to my questions and concerns and is very good at ordering Either a test or a recommendation to make sure that all is well.
Good and gentle soul