Our team is comprised of experts in healthcare, business, and technology.

We continue to improve patient outcomes, increase patient satisfaction, and reduce cost of care through technology.

Highlighted Project

A post-surgical monitoring application tested at Women’s College Hospital showed strong clinical outcomes and cost savings.

Women’s College Hospital was focused on reducing the total length of stay in their hospital while at the same time minimizing readmissions, increasing patient engagement in their own care, and increasing levels of satisfaction. The expedited discharge and at-home patient recovery left them with an absence of outcome data. This had become a barrier to quality improvement.

As such, Women’s College Hospital conducted a research study using a post-surgical monitoring application developed by QoC Health and achieved the following outcomes:


Emerging Complications Detected


Cost Savings


Patient Satisfaction


Reduction in Average Patient Travel

Select Projects


Our Team

Our solutions are making a difference in the lives of patients everywhere, but it’s our people who are revolutionizing healthcare.

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Chancellor Crawford

CEO, Co-Founder

A life-long entrepreneur with the unique ability to combine a strong vision for the unlimited potential of technology with a creative imagination. Previous roles include co-founding Canada’s leading marketing and communications service.

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Julia Roy, HBA, MHI


Julia has focused her time on the convergence between health transformation, digital health and health analytics. She is driven to explore opportunities for improved population health outcomes through digital health and health analytics, and to find the niche for emerging technologies within our current marketplace. She has over eight years of experience working within organizations both nationally and internationally in roles spanning investment banking, international development, healthcare and technology startups.

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John Semple, BSc, MD, MSc, FRCSC

Healthcare Strategy, Co-Founder

As former Surgeon in Chief at Women’s College Hospital, Dr. Semple has a special interest in converging mobile technologies that improve the quality of care and efficiencies in the ambulatory surgical setting.

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Sarah Sharpe, PhD

Healthcare Innovation, Co-Founder

With a background in mixed methods research and evaluation, Sarah’s focus is on the development and implementation of improvements in healthcare.  She has extensive leadership experience in quality improvement, patient engagement and co-design of new healthcare technology solutions.

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David Emerson, MBA

Director of Client Strategy

David has nearly two decades of experience designing, developing and leading large-scale application development projects across a variety of industries. At QoC Health, David uncovers clients’ business and operational needs, and plans technical and creative strategies to help ensure the success of their products and projects.

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Colin Hall, BSc

Director of Technology & Engineering

With over 20 years experience developing full-stack and enterprise level applications, Colin has a passion for working with teams in start-ups as they collectively learn and adapt to the ever-changing marketplace. He also actively supports the open source movement and believes that sharing information the industry itself advances in being able to bring fresh products to market.

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Sam Perlmutar, MBA

Business & Finance Strategist

Sam has an extensive background in early-stage startups – as a co-founder and consultant – and is motivated to help QoC amplify the speed of innovation within the healthcare industry. He uses his international experience and multi-disciplinary skill-set to support strategy, marketing, business development and finance-related activities. Sam holds a Master of Business Administration (MBA) from HEC Paris.

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Randy Ostojic, BEng

Business Strategy, Co-Founder

Randy brings over 25 years of experience in general management, sales, and sales management. He gained this experience in a number of executive positions with HP Canada culminating in his appointment as Vice President of Sales for the Technology Solutions Group.

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Joel Desamero, BTech

Infrastructure Lead

Joel is a web developer, co-author of a web-programming book, and a meticulous problem solver with over two decades of experience. Before working at QoC Health, he was the co-founder of a digital agency that developed websites for clients such as Sick Kids International and Mercedes-Benz. He gets fired up about efficiency and finding simple, elegant solutions for complex web problems.

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Nignesh Patel, BSc

Mobile Lead

As an iOS developer, Nignesh brings his past experience in healthcare apps and cross-platform app develop to implement the best possible solution for each application. In doing so, he aims to deploy applications with higher performance and memory optimization.

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Joonsuk Park

SDK and API Lead

Joon has six years of full-stack experience delivering software products for the banking and health industries. He is passionate about coding, designing, data analysis, and building scalable, robust apps.

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Aryn Gatto, MScHQ

Senior Project Manager

Aryn comes to us with a background in quality improvement and experience in several healthcare sectors including paediatrics, oncology, diabetes and cardiac rehabilitation. She is driven to empower health organizations to accelerate innovation and patient engagement through emerging technologies, data analytics, and evaluation. Aryn’s passion lies in exploring opportunities and leading projects that leverage technology and measurement to optimize health outcomes and improve access to healthcare services.

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Afsha Rizvi, BSc, MHI

Project Manager

Afsha has a background in clinical trials, recruitment, and subject management in the pharmaceutical industry in addition to consumer relations experience with multinational corporations.

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Yves Matta

Front-End Developer

As a Front-End Developer, Yves brings over two years of front-end development experience along with his passion to deliver scalable, robust, tested, and awesome apps. He is a strong self-learner and always looks for a simpler and more efficient way to implement a solution.

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Michael Li

Front-End Developer

Michael is well seasoned in building highly interactive and complex modern web applications with React, Redux and React ecosystem tools. He has a passion for visual arts, the outdoors and staying fit.

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Margarita Bartholomew

Front-End Developer

Margarita brings a diverse academic background to QoC Health, having studied web development, human resources and neuroscience. She is passionate about clean code, accessibility and scalable solutions.

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Ahmed Saad, BSUni

Android Developer

As an Android developer, Ahmed brings his love of programming and architecting to developing clean, scalable apps.

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Vincent Hung

Junior Front-End Developer

Vincent has knowledge of web development, human-computer Interaction, game architecture, and digital systems. Before joining QoC Health, he worked as a web developer for an organization creating webpages targeted at developing countries.

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Shirley Xiao

Junior Designer / Developer

Before joining QoC Health as a Junior Designer / Developer, Shirley had a diverse academic background covering areas such as web development functional programming, art history and human-computer interaction.