Text size
Home / Work With Us/ Physicians and Medical Learners

Physicians and Medical Learners

Chief of Staff Office

The chief of staff office provides a number of services to support and facilitate the relationship of St. Mary’s General Hospital (SMGH) and Grand River Hospital (GRH) to 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.

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, Interim Medical Affairs Coordinator
519-749-4300 ext. 2507

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

Sarah Carr, Medical Education Coordinator
519-749-4300 ext. 2525

Chelsea Hillier, Interim Executive Assistant
519-749-4300 ext. 3892

  • Anesthesia: Dr. Magid Morgan, common chief GRH/SMGH
  • Cardiovascular services: Dr. Brian McNamara, common chief GRH/SMGH
  • Complex Continuing Care and Rehab: Dr. Lisa DiNicolo, chief GRH (interim)
  • Critical care medicine: Dr. Paul Hosek, interim chief GRH
  • Critical care medicine: Dr. Jon Langridge, interim chief SMGH
  • Diagnostic imaging: Dr. Derek Karanwal, common chief GRH/SMGH
  • Emergency medicine: Dr. Jay Green, common chief GRH/SMGH
  • Hospitalist and family medicine: Dr. Phil Kowtecky, common chief GRH/SMGH
  • Internal medicine: Dr. Rebecca Van Alstine, 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
  • Pediatrics: Dr. Bruno DiGravio, chief GRH
  • Psychiatry: Dr. John Heintzman, 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

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 chief of staff. The association’s president (GRH/SMGH) and vice-president are currently vacant.


Logo - Grand River Hospital                        

Career Opportunity: General Surgery

Grand River Hospital and St. Mary's General Hospital 

Grand River Hospital and St. Mary’s General Hospital are jointly recruiting for one full time General Surgeon, preferably with the ability to perform ERCP procedures, to fill an upcoming vacancy in the Spring of 2022 in the Kitchener-Waterloo area. As the largest central community in one of Canada’s fastest growing regions, Kitchener-Waterloo offers the very best of multicultural, large urban centre living and vibrant city life with the warmth and tight-knit community associated with smaller towns. 

About the Hospitals:

Grand River Hospital and St. Mary’s General Hospital are two separately governed hospitals that function as an integrated system with well-defined and complementary clinical programs to serve both the local community and the region. Each hospital has acute care ER with patient volumes reaching approximately 55,000 visits/annum. St. Mary’s General Hospital is a Regional Cardiac Care Centre and a Centre of Excellence for Respiratory and Thoracic Care. Grand River Hospital hosts several regional programs including the Grand River Regional Cancer Centre, Hepatobiliary Surgical Program, stroke, renal and mental health programs. We offer round-the-clock services in orthopedics, urology, gynecology, cancer, plastic, and reconstructive and emergency surgery as well as a wide variety of general surgeries. Our surgeons perform approximately 10,000 procedures each year.

About the Role:

The candidate must be eligible for independent practice licensure with the College of Physicians and Surgeons of Ontario, and hold certification by the Royal College of Physicians and Surgeons of Canada in General Surgery. Fellowship in ERCP is preferred.  Resources offered include: operating room time of at least one day per week, one day of endoscopy per week and daily access to ERCP resources.  The candidate is expected to participate in the general surgery call and take part in the Acute Care Surgery service.  

Inquiries & Applications:

Interested candidates are invited to inquire about this opportunity by sending their curriculum vitae by email to the attention of Lindsay Caroppo, Medical Affairs Coordinator, lindsay.caroppo@grhosp.on.ca