Meet Our Staff


YH4L is fortunate to have many wonderful Team Members along with over 14,000 community volunteers to support us in our mission to decrease sudden death.  The YH4L Staff works with these volunteers to accomplish our goals.



IMG_5940Kathy Altosino  

YH4L Program Director  –   Kathy started her nursing career at Good Samaritan Hospital and then joined Midwest Heart Specialist as a clinical manager.  Recently she was a regional director for cardiovascular services for Advocate Medical Group.  She will use her clinical and executive skills to advance YH4L in its mission to combat sudden cardiac death in young adults.  Kathy is also a mother of 4 grown children and 3 grandchildren.  “There can be no greater pain for a parent than losing a child.  I have worked with Dr. Marek for many years and watched YH4L grow into a successful program, driven by the commitment of Dr. Marek and his dedicated team of volunteers and donors.  I’ve witnessed his passion to save young lives in the community and am very excited to join the team in these efforts.”

Denise Arenz  

YH4L Program Director – Denise Arenz has a passion for giving back.  She joins YH4L after years of successful management positions, and 15 plus years of volunteering at Notre Dame Parish and School, Mend a Heart and other local charities.  Denise has volunteered for YH4L in the past.  Volunteering and service to others have been a core value in raising her 2 teenage sons with her husband, Jim.

Denise’s favorite quotes are  “Be the change you wish to see in the world” (Gandhi) and “Be who God meant you to be and you will set the world on fire” (St Katherine of Siena).

When asked about her favorite things:  all things British (esp. television shows), reading, my Book/Wine/Social Club (where we do not discuss the book! LOL)

20160721_085252Jodi Liebelt