CyberKnife Center Team

Have questions about the CyberKnife System? The FRHS CyberKnife Center Team is here with the answers you need! Contact Nancy Daugherty- Virts, CyberKnife Coordinator with the FRHS Regional Cancer Therapy Center, either by phone at 240-566-4500 or by email at

Wayne E. Flowers is a graduate of University of Maryland, Baltimore with a Bachelor's Degree in Information Sciences. He has over 15 years experience working in a Fortune 500 company. After two family members were diagnosed with cancer, Wayne decided to enter the Radiation Oncology field. He received his clinical training at Siani and Good Samaritan of Baltimore, MD. He is a board certified Radiation Therapy Technician in good standing.

Carol Mastalerz is a results-oriented health care professional with more than 20 years of clinical and management experience in cancer care. She earned her nursing degrees from West Virginia University and Wayne State University and also possesses a Graduate Certificate in the Business of Medicine from Johns Hopkins University. Carol has been with Frederick Regional Health System since 2002 as Director of Oncology Services.

Janet Rhoderick is a graduate of Elizabethtown College and University of Maryland, School of Social Work. She possesses Master's Degrees in Clinical Social Work and Health Studies, and is a Licensed Certified Social Worker – Clinical (LCSW-C) in the state of Maryland. Janet has worked extensively with Frederick Memorial Hospital's oncology service line since her employment in 2004. She is a Certified Oncology Social Worker (OSW-C) and is a member of the National Association of Social Workers, Association of Oncology Social Work, and the CyberKnife Society.

Nancy Daugherty-Virts is a Certified Medical Assistant having received The Academic Excellence in Medical Assisting Curriculum and the Career and Technology Education Awards in 2007 from Frederick Community College. Prior to entering the medical field she held a veterinary assistant certification and has over 20 year’s extensive experience in administration and underwriting with a corporate leader within a highly regulated industry. She has been employed with The Regional Cancer Therapy Center since 2009.