Brennan is a Physical Therapist specializing in outpatient orthopedics with more than 7 years of experience. He has fellowship training in Applied Functional Science through the Gray Institute. He is also Level 2 Certified in Functional Dry Needling. Brennan teaches therapeutic exercise to physical therapy students at LSU School of Allied Health and is an APTA Credentialed Clinical Instructor for physical therapy and physical therapists assistant students. He is a coach for high school athletes participating in a summer performance enhancement camp through The Game, LLC.

​In his spare time, Brennan enjoys spending time with his wife, Amanda, and their 3 children (Parker, Graham, and Ella Claire). He also enjoys hunting, playing tennis, and being in the outdoors.