doctor holding a stethoscope with a graphic overlay of medical icons representing medical data

About Us


Helping physicians, health care teams and hospitals improve patient care. 

We help physicians, health care teams and hospitals use data to gain insights into patient care and improve patient outcomes.

The GEMINI study collects, formats, standardizes and analyzes clinical data from hospitals with the aim of improving how healthcare is delivered. GEMINI is a unique big data collaborative supporting cutting-edge quality improvement and research projects. Our team of clinicians, researchers and data scientists generate novel insights about acute and chronic diseases and highlight opportunities to make hospital care safer and more effective. 


Data collected from the GEMINI study supports the Ontario General Medicine Quality Improvement Network (GeMQIN), a program of Ontario Health (Quality). This network brings general medicine physicians and care teams together to learn new ways to improve patient care and reduce variation in care. It also helps to address provincial priorities such as reducing hallway health care. 


Leaders in big data analytics and research

Housed at Unity Health Toronto’s St. Michael’s Hospital, the GEMINI study is supported by our partners at the Ontario General Medicine Quality Improvement Network (GeMQIN), Ontario Health, Sunnybrook Health Sciences Centre, Sinai Health System, Trillium Health Partners, and the University Health Network. 

With these key partners, the GEMINI team leads initiatives in big data analytics and artificial intelligence that support clinical care improvement. Interested in becoming a GEMINI partner? Contact us today! 

By the numbers

  • 370,000+ patient admissions from 207,000+ unique patients

  • 20+ hospitals across Ontario

  • 1+ billion data points


Why is it important to collect, clean, and standardize data?

Health care organizations collect information from every patient they see. This could include anything from lab results and radiology reports to age, gender, and why and how frequently they’ve been admitted to a hospital. This information is collected as “data” and is analyzed by physicians, health care teams, and hospitals to make important operational and clinical decisions. 

Over time, each hospital, and often even each department, has established their own way of collecting, labelling, and organizing their data. As a result, it can be challenging for physicians, care teams, and hospitals to compile their data into a format that is truly informative and effective for making the best and safest decisions for patients.

What are the Benefits of Participating in GEMINI and GeMQIN?

  • Contribute to Canada’s COVID-19 response. Participate in a data-driven community of practice involving 30+ Ontario hospitals to share best practices, identify key scientific questions, and obtain informative data and analytics


  • Investigators at participating sites can lead research projects using collected GEMINI study data

  • Receive personalized, confidential, physician-level practice reports for all general medicine staff physicians (MyPractice: General Medicine reports)

  • Receive a confidential hospital-level report showing risk-adjusted comparisons for key metrics between participating hospitals

  • Access to Ontario Health (Quality) quality improvement resources and expertise (e.g., best practice tools, change idea packages, and quality improvement specialists) to accelerate local quality improvement 


Please contact if you have any questions about GeMQIN. 

Partner with us today!

1 Verma AA, Yishan G, Kwan JL, Lapointe-Shaw L, Rawal S, Tang T, et al. Patient characteristics, resource use and outcomes associated with general internal medicine hospital care: the GEMINI retrospective cohort study. CMAJ OPEN. 2017;5(4):E842–849.

2 Verma A, Razak F. Can Big Data Lead to Big Changes? Lessons from GEMINI. Presentation at: City-Wide Medical Grand Rounds, St. Michael’s Hospital; 2019 Apr 17; Toronto, ON.

Are you interested in becoming a GEMINI partner?