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 General Medicine Inpatient Initiative (GEMINI) works with hospitals to collect, format, standardize and analyze clinical data 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. 


GEMINI 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, GEMINI is supported by our partners at GeMQIN - Ontario Health, Sinai Health System, Sunnybrook Health Sciences Centre, Trillium Health Partners, and the University Health Network.

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

By the numbers

  • 240,000+ patient admissions from 144,000+ unique patients

  • 7 hospitals across Ontario

  • 1+ billion data points


Why is it important to standardize hospital data?

Health care organizations collect information from every patient they care for. This includes data such as patient and admission information as well as more complex clinical data such as lab tests, imaging results and medication orders. The majority of clinical data are not standardized, meaning each hospital has established their own methods for collecting and organizing these data. As a result, it becomes very challenging for physicians, health care teams and hospitals to evaluate their data, especially at a system-level.


Standardizing data across hospitals is important to ensure that the data are used in a truly consistent and effective manner for making informed and safe decisions for patients.

Why focus on General Medicine?

General internal medicine (or general medicine) is an area that cares mainly for an older population of hospital patients admitted with a diverse range of conditions. On average, general medicine patients have six coexisting conditions.1

In Ontario, general medicine patients account for approximately 40% of emergency department admissions to hospital, 25% of hospital bed days, and 20% of total admissions to hospital.1

Admissions to general medicine in the province have increased by 56% in the last 7 years, largely due to population aging and changing models of hospital care. This growth has strained hospital capacity.2

As a result, the Ontario Health created a provincial program called The Ontario General Medicine Quality Improvement Network (GeMQIN). The purpose of this program is to implement quality improvement initiatives for general medicine and create insights for quality improvement.  GEMINI supports the GeMQIN program by providing expertise in the collection, standardization, analysis and interpretation of data.

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 General Medicine Inpatient Initiative (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.


© 2020 by GEMINI