Himanshu H. Shukla, M.D., specializes in treating heart rhythm disorders and is founder of the Cardiac Arrhythmia Institute (CAI) dedicated to providing heart care customized to the individual. Dr. Shukla is a member of the Heart Rhythm Society, has completed training at Columbia University in New York City, the University of Missouri and the University of Oklahoma. He is recognized for numerous published articles on the treatment of heart rhythm disorders, and by the American Heart Association for Outstanding Research. Dr. Shukla’s community works include raising awareness of heart rhythm disorders, safety and prevention measures through speeches, training and counsel; and contributing external defibrillators to local public schools and other entities. Read complete bio.

Karen Powers, NP is a cardiology nurse practitioner with the Cardiac Arrhythmia Institute. Since 1998, she has been certified as a family nurse practitioner, applying her expertise to a career in cardiology. She is certified by the American Nurses Credentialing Center (ACNN), the Arizona Board of Nursing as an advanced practice nurse, and is an associate member of the American College of Cardiology. Read complete bio.

Lisa Feddersen, RN, BSN is Chief Practice Administrator of the Mesa, Arizona-based Cardiac Arrhythmia Institute. Ms. Feddersen is a registered nurse with extensive experience in electrophysiology procedures with world heart rhythm pioneer Dr. Warren “Sonny” Jackman at the University of Oklahoma (OU) Medical Center. She earned a Bachelor of Science degree in nursing from OU earning Dean’s List honors, with additional emphasis in psychology and clinical research. Read complete bio.