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.
Very good performance
(4 days ago)
May-2026
Dr Brennan is very thorough and explains your care to you so you understand the importance of your health.
(4 days ago)
May-2026
Very friendly and open
(5 days ago)
May-2026
Great doctor.
(1 week ago)
May-2026
Caring and nice
(1 week ago)
May-2026
She is very thorough & willing to listen.
I used to see Dr Salvaggio, & I feel like Dr Brennan is so much more willing to listen to all of my concerns.
(2 weeks ago)
May-2026
She listens to you and does what is necessary to get to the problem you are having and she is very nice to people
(2 weeks ago)
Apr-2026
red really respectable and good at what she does
(2 weeks ago)
Apr-2026
Very satisfying
(3 weeks ago)
Apr-2026
She is very knowledgeable and friendly with the patients
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)
Very good performance
Dr Brennan is very thorough and explains your care to you so you understand the importance of your health.
Very friendly and open
Great doctor.
Caring and nice
She is very thorough & willing to listen. I used to see Dr Salvaggio, & I feel like Dr Brennan is so much more willing to listen to all of my concerns.
She listens to you and does what is necessary to get to the problem you are having and she is very nice to people
red really respectable and good at what she does
Very satisfying
She is very knowledgeable and friendly with the patients