What We Do


Some call it precision medicine, but we call it personalized care. You are after all a person, and yet in our world of over 7.5 billion people, there’s nobody else quite like you.

At DeerFields, we help our clients in the Greater Toronto Area and beyond, to optimize their health, prevent disease, slow the biological aging process, and perform better.  Today we have tests and tools available to us that enable us to assess your overall health; determine how well you are aging; identify your particular health risks; and among other things, understand how your DNA, hormones, and nutrient levels are impacted and influenced by things like your age and lifestyle.

Most of our Toronto area clients begin with our Comprehensive Health Evaluation. This cutting edge medical exam surpasses all other premium medical exams in Canada and provides a complete understanding of how well you are aging.  Our clients appreciate the extended period of time spent with their personal physician; that all tests are conducted in our state-of-the-art clinic; and that test results are available on the same day.

Once our medical and health team have shared your results with you and have a full understanding of your health status, risks, and health and lifestyle goals, a personalized program will be designed for you. Again, we say personalized, because your program will be as unique as you are. You can learn more about our Personal Health Programs here, but do keep in mind that each program is further customized and typically evolves as we work together to optimize your health over time.

Some of our clients seek our expertise to enhance their overall health, while others are busy executives who want to stay at the top of their game.  Women often enroll in our unique Integrative Health Women’s Program, while both men and women welcome our expertise in the areas of healthy aging, bio-identical hormone replacement, cardiovascular health, preventing cancers, optimizing brain health, customized supplements, and health and life coaching.

Once you begin your personalized program, you’ll meet with your physician, our human performance specialist, or a member of our team at various intervals for periodic testing, to evaluate your progress, and to refine your program as needed. Clients from all over Canada appreciate that technology often enables virtual appointments and the ability to maintain a connection with us from wherever they may be.

What’s YOUR PhysioAge? The secret to aging well is knowing how well you are aging. View this video and contact us to find out how we can help you age well and perform better.

Our Exams & Programs

Executive Medical

An integrative, prevention-focused Comprehensive Medical Exam for busy professionals designed to positively impact your health and your business.

Comprehensive Health Evaluation

A customized medical exam that surpasses all other premium medical exams available in the Greater Toronto Area and throughout Canada to provide a complete picture of your biological age.

Personal Health Programs

Personal Health Programs incorporating precisely chosen medicines, therapies and lifestyle advice to help you to take control of your health and quality of life.

Our Services


  • Cardiovascular risk screening
  • Fitness & functional movement screening
  • Ultrasound testing
  • Oncology screening
  • Gut & microbiome testing
  • Toxic Elements screening
  • Food Intolerance and allergy testing
  • Advanced Hormone Testing


  • Aviation Medical Exams – Transport Canada
  • Aviation Medical Exams – FAA
  • Intravenous Micronutrient Therapy (IVMT)
  • Detoxification Therapy