Katherine Brennan, MD

Practice: Cardiovascular Institute of the South (CIS)

Specialty: Cardiology

Office locations: Lafayette, LA

Most recent review: 1 month ago
5.0 out of 5
847 Ratings
332 Comments

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.

5.0 out of 5
847 Ratings
332 Comments

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 !

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Super nice

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Very friendly nice and most important communication with the patient

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Caring Knowledgeable Listens to your concerns Respectful Makes you feel welcome and not just a number on a chart

Rated 5 out of 5 stars
(1 month ago) Sep-2026

She ordered the tests that I need and answered my questions

Rated 5 out of 5 stars
(1 month ago) Sep-2026

She listened to my concerns and answered all my questions. I did not feel rushed.

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Very friendly, personable, easy to talk to.

Rated 5 out of 5 stars
(1 month ago) Sep-2026

It was refreshing to talk to a doctor that listened to your concerns.I really trust her...

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Very caring and pleasant.

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Very professional staff

Rated 5 out of 5 stars
(1 month ago) Sep-2026
See other doctors in Cardiovascular Institute of the South (CIS)