Due to recent significant growth in the number of Pritikin ICR licensed providers and the need for a dedicated and experienced project management team to assist clients in launching ICR operations, Pritikin ICR is pleased to announce the promotion of Deanne Marselle, MA, RD, LD as the Director of Implementation. Deanne is a registered dietitian with 30 years of experience in a variety of healthcare services such as acute care, long-term care, private consulting, and business management. Deanne joined Pritikin ICR in February 2016 as a Field Manager overseeing multiple Pritikin sites, and during this time she implemented dozens of our currently licensed providers. Her experience and professional background provide Pritikin the necessary skill set to deliver comprehensive and efficient implementations in collaboration with our licensed providers.


In addition, we are pleased to have Kevin Kelsey join Pritikin’s Implementation team. Kevin has worked with both revenue cycle and clinical teams throughout the country, in both ambulatory and acute care settings. Kevin’s background as a healthcare consultant and project management leader strengthens Pritikin’s comprehensive implementation process, ensuring a deep understanding of each new client across all operational facets.

By working one-on-one with various levels of leadership at each unique facility throughout the implementation process, Deanne and Kevin ensure that our newly-licensed Pritikin clients properly incorporate ICR services. Ultimately, this dedicated Implementation team supports a seamless transition and successful launch of each Pritikin ICR program.


Pritikin ICR has also expanded its Field Management team with the addition of three new Field Managers.  These new team members bring strong cardiac rehab experience and expertise in the areas of nutrition, training, and exercise physiology, and provide the best possible support to our Pritikin ICR-licensed facilities from coast-to-coast:

Christina Lewis, MS, RD, LD is a Registered and Licensed Dietitian with over 20 years of experience in clinical dietetics, education, and program management. Prior to joining Pritikin, Christina served in the US Army, and held several positions in clinical nutrition. Most recently, Christina was responsible for education, training, and competencies for Allied Health professionals across 14 hospitals as part of a large healthcare organization in North Texas. Christina is based in the Dallas, Texas, area and proud to be a native of the Lone Star State.



Sharon Mattheisen, RD, LD brings ten years of experience in the fields of nutrition, health, and wellness to our team. Before joining Pritikin ICR, Sharon was the Registered Dietitian for Renown’s Pritikin ICR program in Reno, Nevada, presenting nutrition lectures, teaching Pritikin ICR Cooking School Workshops, and counseling patients one-on-one. Sharon currently lives with her husband and three children in Park City, Utah, where she enjoys trail running, mountain biking, camping, and spending time with her family.




Karyn Panek, MS is an ACSM Certified Clinical Exercise Physiologist with over ten years of direct care in Cardiac Rehab. Karyn received both her BS and MS in Exercise Physiology from the University of Illinois at Chicago. She is a strong advocate of lifestyle medicine and believer that exercise really is medicine. Originally from Chicago, Illinois, Karyn currently lives in Asheville, North Carolina, with her husband and dogs. She enjoys traveling, especially by bike, and thinks there’s no better way to see and experience a new area!




Learn more by contacting Jenny Ray, Sales and Marketing Coordinator, at jray@pritikin.com or 314-396-8669.