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.
Excellent !
(1 week ago)
Sep-2026
Super nice
(2 weeks ago)
Sep-2026
Very friendly nice and most important communication with the patient
(2 weeks ago)
Sep-2026
Caring Knowledgeable Listens to your concerns Respectful Makes you feel welcome and not just a number on a chart
(2 weeks ago)
Sep-2026
She ordered the tests that I need and answered my questions
(2 weeks ago)
Sep-2026
She listened to my concerns and answered all my questions. I did not feel rushed.
(2 weeks ago)
Sep-2026
Very friendly, personable, easy to talk to.
(3 weeks ago)
Sep-2026
It was refreshing to talk to a doctor that listened to your concerns.I really trust her...
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)
Excellent !
Super nice
Very friendly nice and most important communication with the patient
Caring Knowledgeable Listens to your concerns Respectful Makes you feel welcome and not just a number on a chart
She ordered the tests that I need and answered my questions
She listened to my concerns and answered all my questions. I did not feel rushed.
Very friendly, personable, easy to talk to.
It was refreshing to talk to a doctor that listened to your concerns.I really trust her...
Very caring and pleasant.
Very professional staff