Our teams


Dr. Ron Mayer – Chief Medical Officer

After working as a physician in one of the busiest emergency rooms in Canada Ron worked as a C-suite leader in travel health insurance and chronic disease management companies. He has a degree in genetics and became a doctor of medicine at the University of Toronto.

“Nothing is more important than our health, and close, loving relationships help us stay healthy.”

Sean Kelly – Clinic Manager

Sean moved to Canada from Buffalo after selling his successful healthcare insurance consulting business which he ran for many years. 

If you call FullMast he can answer non-medical question. Sean delights in helping people – and chatting about sports.



Rohid – Front Desk Manager

A graduate in kinesiology from York University, Rohid is passionate about building his career in the healthcare field. 

When you call or visit Rohid will likely be the person who greets you. 



1333 Sheppard Ave E #318
Toronto, ON M2J 1V1

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West GTA, Oakville

Dr. C. Leonard De Bolster

Dr. De Bolster has 32 years of experience in male sexual and pelvic health, and he runs the So Simple Vasectomy Clinic, that has become one of Ontario’s foremost vasectomy practices. Dr. De Bolster’s background is uniquely valuable for the FullMast medical team. He is a prominent family physician in the Halton/Peel community.  He has previously served as Deputy Chief of the Department of Family Practice at Credit Valley Hospital and Director of Hospitalist Program at Credit Valley Hospital.  He is a member, in good standing, of The College of Physicians and Surgeons of Ontario and the Ontario College of Family Physicians.

Read more here about Dr. De Bolster and the new FullMast West GTA, Oakville clinic.

RedMarkerWest GTA

640 Ford Drive
Oakville, ON, L6J 7V7

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Dr. Robert Dikeukwu

Dr. Robert Dikeukwu (pronounced dee-koo-koo) operates the FullMast Men’s Health Clinic at the Health Watch Medical Clinic, a family practice, conveniently located next to the Chinook Centre, ten minutes from downtown Calgary by car.

Originally from Nigeria, Dr. Robert graduated with distinction from the prestigious University of Witwatersrand in South Africa and moved to Alberta in 2014 with his wife and four children.

While publishing a post-graduate thesis on foot care for diabetics he became aware of the prevalence of erectile dysfunction and its adverse effects on mood and overall well being.  

Dr. Robert is an active volunteer and advocate for community health and responsible government in Nigeria.


109, 5809 Macleod Tr SW
Calgary AB, T2H 0J9

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