Cancer Center

The Future of Comprehensive and Accessible Cancer Care

Oncology Wellness Program

Working Together To Heal The Whole You

The Commission on Cancer (CoC) Advantage


When patients receive care at a CoC facility, they also have access to information on clinical trials and new treatments, genetic counseling, and patient centered services including psycho-social support, a patient navigation process, and a survivorship care plan that documents the care each patient receives and seeks to improve cancer survivors’ quality of life.

The CoC provides the public with information on the resources, services, and cancer treatment experience for each CoC-accredited cancer program through the CoC Hospital Locator at


Cancer Care Committee


Required Members

Dr. Randall Dooley, Surgeon

Rita Gassmann, Psychosocial Services and Social Services

Dr. Allison Howard, Cancer Registry Quality Coordinator

Dr. Daniel Keys, Diagnostic Radiologist Donna Matthews

Dr. Mohamed Megahy, Radiation Oncologist

Jill Navarro, Cancer Program Coordinator

Dr. Mark Walshauser, Medical Oncologist, Cancer Liaison Physician and Clinical Research Coordinator

Additional Members

  • Shambra Cullum
  • Thomas Dibadj
  • Dr. Justin Floyd
  • Dr. Dolph Haege
  • Erica Niemeyer
  • Janice Pautler
  • Brennan Porter
  • JoAnn Sugg
  • Linda Schulz
  • Debbie Young
  • Jordyn Corthell
  • Christy Koenigstein
  • Conswala Jones
  • Vivian Bossler
  • Shelly Brumme

Latest News

Cancer Care Specialists of Illinois and HSHS St. Elizabeth’s...

 April 21, 2020

(O’FALLON, IL) – On Monday, April 20, HSHS St. Elizabeth’s Hospital and Cancer Care Specialists of Illinois (CCSI) opened the doors and welcomed patients into the newly built...


Smokers encouraged to make 2020 resolution to get screened for lung...

 December 26, 2019

(O’FALLON, IL) – Despite nationwide decreases in smoking over the decades, it still remains the country’s leading cause of preventable disease. For current smokers or those...


HSHS St. Elizabeth’s Hospital to host Cancer Care Education Event...

 May 3, 2019

(O’FALLON, IL) – On Wednesday, May 29, HSHS St. Elizabeth’s Hospital, in partnership with the O’Fallon Public Library, is hosting a free Cancer Education event. The...