Meet our office staff

Jennifer Castelli

Practice manager

Jennifer is the Practice Manager who serves as the foundation on which Dr. Zich’s practice rests. She has been the practice manager for the predecessors of Dr. Zich’s practice starting in 1999. Her incredible attention to detail keeps the office running smoothly. She handles all of the membership, oversees the day-to-day operation of the office, and makes sure Dr. Zich stays on track with all administrative tasks so that he can concentrate on patient care. There is truly no one better at managing a practice than Jennifer. She is the glue that holds everything and everyone together.

Debbie Lessin

Administrative assistant & receptionist

Debbie is our administrative assistant and receptionist. She has extensive experience in the medical office setting, working in a doctor’s office for over 26 years. She was with the Children’s Healthcare Associates before joining our practice in 2019. She is calm, friendly, and experienced. Her pleasant and professional demeanor serves as the face of our practice when you walk in the door. We are very fortunate to have her as part of our team.

Lillie Sanders

Medical assistant

Lilly has been a medical assistant for over thirty years. Aside from Internal Medicine, Lilly has worked with Pediatrics, OB/Gyn, Dermatology, and Infectious Disease physicians. She joined the predecessors of Dr. Zich’s practice in 2000 and has been with Dr. Zich since 2013. Her disposition has been described as a “ray of sunshine”. Her enthusiasm for her job and life in general is contagious. She has also been called the “Blood Whisperer” given her incredible ability to draw blood in a painless manner! If you are anxious for any reason, Lilly will be a calming influence throughout your visit!