About Us
Trillium Leadership
Senior Leadership
Michelle E. DiEmanuele
President and CEO

Michelle E. DiEmanuele is President and CEO of The Credit Valley Hospital and Trillium Health Centre. She has spent her career in the public and private sectors leading large-scale change and cultural transformation. Previously, Michelle was Associate Secretary of Cabinet and Deputy Minister in the Ontario Government. During this time, she led the renewal of public services through “Service Ontario” including the introduction of the first ever “Money Back Guarantee” for government services in North America. She reformed human resources, information technology and business services for the Ontario Government. She has also served as Interim CEO at the Ontario Lottery and Gaming Corporation, Assistant Deputy Minister of Health, Vice President (Branch and Small Business Banking, Retail Markets/Human Resources), CIBC and Vice President (Human Resources and Organizational Development), Brookfield Properties Ltd.
Michelle is in the Hall of Fame of Canada’s Top 100 most Powerful Women and was recognized as a Top 40 under 40. She serves on numerous Boards, including the Conference Board of Canada and the Ontario Hospital Association.
She received her BA in Political Science from the University of Waterloo and her MA in Political Science from the University of Toronto.
Michelle has extensive experience in driving higher levels of service, people and financial performance through effective change leadership and has worked in healthcare, justice, social services, financial and real estate sectors. She has expertise in human resources management, information technology, business process reengineering, stakeholder management, strategy development, government relations and operations.
Her breadth of public sector experience has provided an excellent foundation for understanding regulatory environments and how the private sector can work effectively with government to achieve better outcomes.
Ruby Brown, MBA, BScN,
Acting CEO, Trillium Health Centre Site

Ruby Brown has recently joined the Trillium Health Centre as Executive Vice President and Chief Operating Officer. She has over 25 years of experience across various health care sectors, including acute, long term care, community, and mental health in Alberta, British Columbia and the Northwest Territories.
Prior to her arrival in Ontario, Ruby served as Vice President for the Alberta Mental Health Board. She has been the Senior Operating Officer for Vancouver Acute in the Vancouver Coast Health Authority, Chief Operating Officer for the North Okanagan Health Region, Chief Transition Officer for the Alberta Mental Health Board, and in administration at the University of Alberta Hospital in Edmonton’s Capital Health Region following regionalization.
Ruby has a BScN (with distinction) and a MBA from the University of Alberta.
Gopal Bhatnagar, M.D., FRCS(C), M.Ed.
Acting Chief of Staff, Trillium Health Centre Site
Dr. Gopal Bhatnagar is the liaison between the medical staff, the hospital board and its executive team, and has overall responsibility for the quality of medical care provided by Trillium Health Centre. Dr. Bhatnagar also represents the hospital in the broader medical community.
Dr. Bhatnagar is a cardiac surgeon with expertise in ‘beating heart surgery’ and a successful career in cardiac research and education. He was head of Trillium Health Centre’s cardiac surgery division since its beginning in 2000. During this time, Trillium’s regional cardiac program has grown to be one of the largest in the province.
May Chang
Vice President, Corporate Services and Chief Financial Officer
May Chang is Vice President, Corporate Services and Chief Financial Officer at Trillium Health Centre. In her current role, May is responsible for Finance, Decision Support, Facilities & Redevelopment, Corporate Services, Risk Management as well as Legal Services.
May is a collaborative leader who believes in the power of teamwork and relationship building to foster growth and development. Her ongoing commitment to health care genuinely compliments Trillium’s mission to transform the health care experience.
A Certified Management Accountant, May graduated with distinction from the University of Toronto with a Bachelor of Arts Degree (majoring in Commerce). May received a Faculty Scholar Certificate from the University of Toronto in recognition of academic work accomplished with High Distinction and has also received a lifetime membership to the Golden Key National Honour Society in recognition of outstanding scholastic achievement and excellence.
Prior to joining Trillium, May was the Chief Financial Officer for the Niagara Health System and her portfolio included Finance and Support Services. May provided leadership and direction for all major financial decisions. She was Chair of the Treasurer for the Board of Trustee and provided support to the Finance and Audit Committee (sub-committees of the Board). May has also held the position of Chief Financial Officer at York Central Hospital.
Patti Cochrane
Vice President, Patient Services & Quality and Chief Nursing Officer (CNO)
Patti Cochrane is the Vice President, Patient Services & Quality and CNO at Trillium Health Centre.
Prior to her appointment in September 2006, Patti was the Associate Vice President, Performance Excellence and has had a wide range of clinical roles as Director of a number of health systems since the creation of Trillium Health Centre in 1998, and other roles with the Mississauga Hospital starting in 1994.
Patti is a registered nurse with a Bachelor’s Degree and a Masters in Health Science in Health Administration and has recently completed her Canadian Health Executive program designation.
Her accomplishments over the years have been numerous and have included leading the patient-centredness initiative and the creation of an Ideal Patient Experience, the development of a new model of care (Non-Nursing Task Force), and a number of programs including the Hospitalist and Medical Emergency Teams. She also successfully transitioned the Medical Health System from a deficit to a balanced budget. In 2006, she won an Innovation Award from the Society of Graduates at the University of Toronto.
Steve Hall
Shared Vice President & Chief Information Officer,
Trillium Health Centre and The Credit Valley Hospital
Steve Hall is Shared Vice President & Chief Information Officer of both Trillium Health Centre and The Credit Valley Hospital. In this role, Steve is responsible for Information Technology and Clinical Informatics at both organizations.
Since earning his B.Sc.Hons. and M.Sc. degrees from Queen’s University, Steve has served as Chief Information and Privacy Officer at William Osler Health System, Chief Technology Officer with Cancer Care Ontario, Chief Information Officer at Legal Aid Ontario, and leadership roles within the pharmaceutical industry. His technology credentials include IT Governance, ITIL, Systems Security, Data Warehousing, IT Infrastructure, Software Development, Clinical Informatics and Project Management. Steve was instrumental in development and implementation of the Provincial Wait Times Information System.
Steve’s career successes stem from building strong relationships and remaining focused on enabling business change through the strategic application of information and technology supports. His twelve years of senior leadership experience ideally position him to work collaboratively and responsively with the stakeholders of both organizations in support of information systems that ultimately serve the patients and families who depend on the Trillium Health Centre and the Credit Valley Hospital.
Norman Hill, M.D.
Vice President, Medical and Academic Affairs
Dr. Norman Hill is the Vice President, Medical and Academic Affairs. He is a Fellow of the Royal College of Physicians and Surgeons, General Surgery, and has a Certificate in Health Administration from the University of Toronto. Norman is also a Surveyor with the Canadian Council of Health Services Accreditation and a Peer Assessor with the College of Physicians and Surgeons of Ontario. On staff for 27 years, he has also been the Deputy Chief of Staff and the President of the Medical Staff Association.
Morag McLean
Shared Vice President, People Services & Organizational Effectiveness
Morag McLean is a highly motivated, results-oriented senior public sector leader with extensive human resources and organizational development experience leading and managing cultural change in large complex public service environments.
Since joining the Ontario Public Service in 1977, Morag has held a variety of senior level positions in the Ministry of the Solicitor General, Management Board Secretariat, the Ministry of Agriculture, Food & Rural Affairs, Cabinet Office and the Ministry of Government Services.
In June 2004, Morag was appointed Assistant Deputy Minister, Centre for Leadership and Learning (CFLL) responsible for fostering an enterprise-wide leadership and management culture. Morag’s leadership responsibilities encompass executive recruitment, talent management, learning & development, attracting & retaining youth/new professionals and administering an open and transparent public appointments process for agencies, boards and commissions.
In July 2008, in addition to leading the Centre for Leadership and Learning, Morag was appointed as Chair of the Public Service Commission of Ontario. The PSC’s mandate is to provide strategic enterprise oversight and direction for the effective management and administration of human resources across the Ontario Public Service.
Morag is strongly committed to leadership, learning, innovation, diversity, inclusiveness and employee engagement.
Scott McLeod
Vice President – Strategy and Business Transformation
Scott McLeod has over 25 years of health care management and planning experience in a variety of heath-care settings, including hospitals and regional health authorities in Alberta, Manitoba and Ontario. Scott joined Trillium in January 2008 as Associate Vice President Strategic Planning and Business Transformation. As a member of the Senior Team, he led the development of the new strategic plan which is now being rolled out in the organization. His current portfolio includes Strategy and Program Planning, Strategy Management, Research, Ethics, Communications and Marketing, Community Relations, Patient Relations and Emergency Preparedness.
Prior to joining Trillium, he was the Senior Director of Planning, Integration and Community Engagement for the Mississauga Halton Local Health Integration Network. He also served as the Director of Planning and Executive Director for the Halton-Peel District Health Council, and as a Senior Consultant with the health-care consulting firm of Agnew Peckham.
Scott is recognized for having an open, collaborative and results-oriented approach to planning and facilitation. He brings: strong visionary strategic-planning and project-management skills; a commitment to continuous quality improvement; and, recognized skills in communication, negotiation and consensus-building.
Scott has a Masters in Health Administration from the University of Ottawa and a Bachelor of Commerce (Honours) from the University of Manitoba.


