Health & Nutrition Team

A unique feature of South Denver Cardiology Associates is the Health and Nutrition department. This team leads all of our wellness classes and exercise programs and also meets individually with patients. The professionals on this team are here to serve the cardiac patients needs from a whole person approach to treatment and care.


Susan Buckley,  RDN, CLT 

A native of California, Susan graduated with a BS in Nutrition and Dietetics from Fontbonne University in St. Louis, MO. After completing her internship with the St. Louis Veterans Administration, Susan began her career as a Registered Dietitian working for the Child Care Food Program, a USDA food program devoted to proper nutrition for children. Honoring her passion for weight management and good health, she started her own private consulting business, working with clients with a myriad of health issues ranging from heart disease, diabetes, high blood pressure, and obesity, before coming to South Denver Heart Center in 2004. Now Susan provides her wealth of knowledge as a Registered Dietitian, and co-contributor to Cooking with Heart, South Denver’s cookbook. She is also co-author of The Kardea Gourmet; Smart and Delicious Eating for a Healthy Heart. Susan teaches a number of Wellness classes at South Denver Cardiology; including heart-healthy lectures as well as classes in Cholesterol Basics, Diabetes and Understanding Your Lab Values. Susan also does extensive work with patients with food allergies and sensitivities. Having been overweight most of her life and then losing over 70 pounds 20 years ago (her story was featured in O, The Oprah Magazine), Susan knows most diets DON’T WORK long term. The only thing that does work is changing your lifestyle and making a life-long commitment to healthy living. Her motto is “Enjoy good food AND good health.” Susan and her husband enjoy the active Colorado lifestyle including hiking, biking, and cross-country skiing. They have two grown daughters in the Denver/Fort Collins area.

Susan Weitkunat, MS, RDN, CDE

Susan has a Bachelor’s Degree in Kinesiology and a Master’s Degree in Nutrition. She started out in cardiac rehab and lipid clinics and has worked as a dietitian for more than 20 years. In addition to heart health, Susan Weitkunat is a Certified Diabetes Educator and works with people of all ages with diabetes or prediabetes. She also specializes in weight management. She is a member of the Academy of Nutrition and Dietetics.



Vicki Siegel, MA, CES, CSCS
Vicki Vicki has been fascinated with the way the body works her entire life. She always enjoyed sports as a child, so the career of exercise physiology came easily. Her desire to help others achieve realistic goals regarding exercise and wellness led her to help weight management patients complete their goals. Vicki spent fifteen years in cardiopulmonary rehabilitation and is currently our Master Trainer for the HeartMath® program. Using her Master’s degree and many years of experience, Vicki designs and implements exercise programs for adults of all ages and abilities.  She leads our group exercise classes including Muscles Strength, YogaStretch, Yoga of the Heart, Balance, Tai Chi and Zumba Gold.  Vicki is also a nationally certified Personal Trainer.

Vicki is the mother of two children, Rachel and Daniel, and grandmother to Gentry, the light of her life!  In her spare time, Vicki enjoys Tae Kwon Do, kickboxing, hiking, bike riding, snowshoeing, arts and crafts, sewing, and of course spend time with her grandson.


Gus Boisits, Certified Massage Therapist

Gustave Boisits, CMT is a certified Neuro-Muscular Therapist & Structural Integrator and is in his 15th year of full-time practice. He trained with Mark Manton, ND at Denver, Colorado.

Gus has had over 16,500 client visits and is very successful in eliminating many types of body pain and alignment issues.

Since 2008, he is a member of the Denver Broncos Bodywork Staff. Gus believes by working together you will find ease and peace for your mind, body, and soul. Believe it!


Dr. Larry J. Bloom, Counseling Psychology

In addition Dr. Larry J. Bloom’s work as a Professor of Counseling Psychology, Dr. Bloom works with the guests of South Denver Cardiology Associates during their treatment.