Physicians & Medical Learners

Chief of Staff Office

The Chief of Staff Office provides a number of services to support the relationship between St. Mary’s General Hospital/Grand River Hospital and the Professional Staff (physicians, dentists and midwives). Our purpose is to work closely with medical leaders, hospital administrative leaders and medical schools to support recruitment, credentialing, career and leadership development planning, orientation and medical education.

Contact Us:

835 King St. West, Kitchener, Ontario N2G 1G3
Phone: 519-749-4300 ext. 3892
Fax: 519-749-4293

Dr. Peter Potts, Chief of Staff
St. Mary’s General Hospital/Grand River Hospital

Lindsay Caroppo, Executive Assistant
519-749-4300 ext. 2507

Tanja Cvijetic, Medical Affairs Coordinator, Credentialing & Recruitment
519-749-4300 ext. 3892

Chelsea Hillier, Medical Education Coordinator
519-749-4300 ext. 2525

Medical Leaders at St. Mary’s General Hospital:

  • Anesthesia: Dr. Magid Morgan, common chief GRH/SMGH
  • Cardiovascular services: Dr. Brian McNamara, common chief GRH/SMGH
  • Critical Care Medicine: Dr. Mohammad Bahrgard Nikoo, common chief GRH/SMGH
  • Complex Continuing Care: Dr. Abhishek Narayan, common chief
  • Diagnostic Imaging: Dr. Derek Karanwal, common chief GRH/SMGH
  • Emergency Medicine: Dr. Jason Green, common chief GRH/SMGH
  • Hospitalist and Family Medicine: Dr. Brian Kelly, common chief GRH/SMGH
  • Internal Medicine: Dr. William Plaxton, common chief GRH/SMGH
  • Laboratory Medicine: Dr. Dimitrios Divaris, common chief GRH/SMGH (interim)
  • Nephrology: Dr. Gerald Rosenstein, chief GRH
  • Nuclear Medicine: Dr. Richard Dubeau, chief SMGH
  • Oncology: Dr. Gregory Knight, chief, GRH
  • Paediatrics: Dr. Bruno DiGravio, chief GRH
  • Psychiatry: Dr. John Hentizman, chief GRH
  • Pulmonary Services: Dr. Mary Jackson, common chief GRH/SMGH (interim)
  • Reproductive Medicine: Dr. Stephen Halmo, chief, GRH
  • Surgery: Dr. Bogdan Paun, common chief GRH/SMGH

Medical Staff Association

The Medical Staff Association represents physicians on various hospital committees. Meetings provide an open platform for medical staff to ask questions and raise concerns to hospital administration and the chief of staff. The association’s president (GRH/SMGH) and vice president roles are currently vacant.

Physician Recruitment

All professional staff recruitment is based on an annual board-approved medical resource plan.

To inquire about physician vacancies at St. Mary’s General Hospital or for any other inquiries, please contact:

Tanja Cvijetic, Medical Affairs Coordinator
519-749-4300 ext. 3892