Currently, Doreen works as an Infection Control Practitioner (ICP) in which she had to do additional studies to obtain a Certification Board of Infection Control (CBIC) certificate. Her role as an ICP is designed to educate Healthcare providers to understand the principles of Infection Prevention and Control (IPAC) to guide appropriate infection prevention practices.

She has mentored many nursing students as a preceptor during her nursing career and have worked with youths for years, encouraging, guiding and empowering them in community church programs. She volunteered for the Sickle Cell Awareness Group of Ontario (SCAGO) for over ten years. Her roles included the following: Vice President, President, Outreach Coordinator, member of the Board of Directors and currently the Volunteer Manager.