Who We Are

Dr. Kenneth Rockwood, MDken

President & Chief Scientific Officer

Professor Kenneth Rockwood brings over 25 years experience as a key collaborator and research lead on numerous studies in geriatric medicine and dementia. He holds the Kathryn Allen Weldon Chair in Alzheimer Disease at Dalhousie University, Halifax, Canada.

In addition to being a specialist in internal medicine and geriatric medicine, he has a masters degree in Public Administration and has fulfilled several roles in advising on public policy at both the provincial and federal levels. He has published more than 400 peer-reviewed papers, including in such prestigious medical journals such as the Lancet and the New England Journal of Medicine.

Professor Rockwood has received dozens of awards over the last 20 years, including prestigious prizes and lectureships from the United Kingdom, United States, Australia, China, Japan, Singapore and Italy, as well as several from Canada. He founded DGI in 2001.


chereChere Chapman, MBA, MHSc


Chère Chapman has a Masters in Health Science in Community Health and Epidemiology and global experience in HIV research with injection drug users. After completing her MBA at London Business School, Chère founded Rasbora Consulting to bridge the divide between the private and non-profit sectors.

For over a decade, Chère used her skills and experience to provide guidance to non-profits trying to improve their effectiveness, help multinationals develop impactful corporate responsibility programs, and support social enterprises focused on creating shared value.

Chère has lived and worked in Japan, India, United Kingdom, Vietnam, and Singapore. Chère is currently based in Halifax, Nova Scotia where she is thrilled to lend her skills in health research and business management to her role as CEO of DGI. Chère is a mother of four, an avid runner, and an Asian food enthusiast.

arnoldArnold Mitnitski, PhD

Director: Data Mining Analysis

Professor Arnold Mitnitski brings his expertise in mathematical modeling and advanced data analysis/ data mining to his role at DGI Clinical. Born and educated in St-Petersburg, Russia, he has been collaborating with Dr. Rockwood since 1995. Together they have published over 120 peer-reviewed papers which highlight their nuanced approaches for dealing with complexity and uncertainty in health data.

Dr Mitnitski was behind the development of several tools fundamental to DGI’s analytics offering, including the Frailty Index and sophisticated mathematical techniques such as connectivity analysis.


susanSusan Howlett, PhD

Senior Scientist

Dr. Susan Howlett is a Professor of Pharmacology and Medicine at Dalhousie University.  She has almost 30 years of experience as a researcher and is at the forefront of cardiovascular research, particularly in sex and age differences in heart disease.

Internationally recognized for her pioneering work on sex hormones in heart disease and on frailty, Dr. Howlett is regularly called on to present her work at international scientific meetings.  She has presented work on frailty at Parliament Hill and was the sole Canadian invited by the NIH to participate in a working group examining sex disparities in basic science research.

She has over 125 publications in leading scientific journals and is committed to addressing the societal importance of frailty and aging as well as women’s heart health.

amandaAmanda Simpson


Amanda Simpson joined the DGI team in 2008, and brings a vast amount of product and technical knowledge to DGI's projects. She is a point of contact for overall company operations, projects and ensures the clients' needs are successfully met.

Amanda is passionate about health technology, clinical research and SymptomGuide™. Amanda's experience derives from her previous roles in marketing, business administration, as well as project and event management.

In her free time, Amanda is a high performance curler who trains and competes on the World Curling Tour (WCT) circuit.


sherriSherri Fay

Clinical Research Manager

Sherri is the clinical research manager.

justinJustin Stanley, BEng

Data Analyst

Justin Stanley joined the DGI team in 2016 and brings technical knowledge surrounding the data mining, analysis and management field. Since starting, he has been working closely with the SymptomGuide™, identifying and interpreting trends or patterns and performing analysis under the Director of Data Mining.

Justin continues to work with data management and statisticians to apply common practice statistical methods across all fields.

helenHelen Wong, MSc

Research Assistant

Trained as a dietitian, Helen brings her passions for patient centred care and evidence-based practice to the DGI team. Over the years, she has gained first hand experience in research working on clinical trials and secondary data analyses related to obesity, hyperlipidemia, and other chronic diseases within various study populations.

More recently, she completed her masters degree in Science at Central Michigan University. In addition, Helen has co-authored several manuscripts on different topics related to health in children and older adults.

ashleyAshley Pringle, MA

Web Developer

Ashley Pringle is a web designer and programmer. He graduated with a masters in Philosophy from Dalhousie University in 2008 and has been working in the tech industry since then, doing everything from Apple computer repairs to mobile app design and coding.

He began coding and designing websites in high school when he learned HTML, and has expanded his repertoire to include CSS, PHP, and a host of other web-focussed languages.

Ashley has won awards for his programming and game design, including most recently an award for top placement in a Volta Labs Hackathon competition.