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Locations in Canada

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We're opening new MedSleep clinic locations across the country.

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MedSleep Overview

About Us

Our physicians are highly skilled and widely experienced in the field of sleep disorders medicine. Our entire team of professional staff is committed to providing excellent patient care. Your health comes first.

Management Team

Adam Blackman MD, FRCPC, D.ABSM, D.ABPN
President and Chief Medical Director

Adam BlackmanDr. Blackman graduated from the Faculty of Medicine at the University of Toronto and subsequently completed specialty training in psychiatry and a sleep medicine fellowship. Prior to founding MedSleep he was the medical director of the Toronto Western Hospital, Sleep and Alertness Clinic. He was the Vice-President of Medical Imaging and Business Development at Medisys Health Group from 2006-2008 where he was responsible for overseeing the Ontario Medical Imaging Division and developing innovative health care partnerships. Dr. Blackman is an assistant professor of the University of Toronto and teaches both residents and sleep medicine fellows. He has also been actively involved in establishing sleep medicine standards with both the Canadian Sleep Society and the College of Physicians and Surgeons of Ontario.

Kostas Tsambourlianos MBA, PMP
Vice President

Kostas TsambourlianosKostas Tsambourlianos joined the MedSleep family in October 2010. Having completed his MBA from the Kellogg School of Management, he is also a registered Project Management Professional (PMP). His rich background in a wide variety of industries such as Shoppers Drug Mart, IBM and Lafarge brings a unique perspective to the business. In addition, he is a professor in the MBA program at the Schulich School of Business, specializing in Strategic Field Studies and International Business. Kostas is responsible for Business Development, Operations, Marketing, Human Resources and Finance.

James MacFarlane Ph.D, D.ABSM
Director of Education, MedSleep

James MacfarlaneJamie MacFarlane is an Assistant Professor of Pediatrics and Psychiatry, University of Toronto. He was granted his doctorate from McMaster University Medical Centre for his work in neuropharmacology and began his sleep career at the Toronto Western Hospital in 1989. He also is a Research Associate at the Hospital for Sick Children in Toronto and is a consultant at the Niagara Sleep and Snoring Centre. He currently serves on the Board of the Canadian Sleep Society. Dr. MacFarlane is actively involved in developing innovative sleep educational programs for sleep technologists, medical students and physicians. He also provides public lectures to enhance awareness of issues related to sleep and sleep disorders.

Karen Vegnaduzzo Honours BA, CCRP
Director of Operations, Ontario

Karen VegnaduzzoA member of the MedSleep family since its founding, she brings over 12 years of operational and clinical research experience in healthcare. Her focus on helping to build an efficient and effective organization has played a key role in MedSleep’s evolution from a single clinic to a national operation. Karen is responsible for providing overall operational management to MedSleep’s Ontario clinics. In her role, Karen leads, manages and executes all operational and clinical research initiatives in Ontario, in addition to managing various strategic projects.


Actual Comments From Our Patients


  • Everyone has been polite & professional. Thank you. Feb 2013
  • Appreciate the reminder call! The staff answered questions before I asked. Dr. Young is very thorough and friendly. Great all around clinic. Keep up the great work. March 2013
  • Dr. Young is very thorough, informative, friendly and helpful. Happy with the visit. March 2013
  • You could not find a better administrator on the phone! She is not just excellent, but exceptional. March 2013


  • Excellent staff, made me feel confident in their abilities. Feb 2013
  • Great attitude and service.  Feb 2013
  • Very polite & friendly. Feb 2013
  • So far very pleasant. Wait times are short and info provided is sufficient. Feb 2013
  • The Sleep Study was not nearly as intimidating as I thought. I think I may have actually slept really well. Feb 2013
  • The staff and Dr. Klein are very respectful. Feb 2013
  • Technician very warm. I was feeling anxious but she calmed my anxiety. Feb 2013


  • Good to be able to breath and sleep at the same time. March 2013
  • I always feel welcome and safe while there. March 2013
  • Excellent bedside manner! (Dr. McGrail) March 2013
  • Dr. McGrail took the time to answer - questions/concerns. Really listened to me. March 2013
  • The Doctor was very thorough and efficient. It gave me expectations that my situation can be improved. March 2013
  • Very good experience. Dr. Phillips spent a great deal of time with me. Very much appreciated. March 2013


  • I am very pleased with the service. Feb 2013
  • Very happy with the service. Lucy is very good and professional. Feb 2013
  • Information was well presented. The Staff is very cooperative, went out of their way to help me get started. Feb 2013
  • Everyone is very friendly, informative and they are very ready to help. Mar 2013


  • Everything is very professional. Feb 2013
  • Everything in this office is and has been amazing. Feb 2013
  • The staff is very knowledgeable and the sleep study process fully.  I had an overall excellent experience. Feb 2013


  • A pleasant and helpful staff to make the test easy and comfortable. Thank you! Feb 2013
  • The staff are courteous, professional, personable and the information provided is thorough. Very happy with this experience. Feb 2013 


  • Dr. David Klein is very kind person. Feb 2013
  • Very courteous technician & experience. Feb 2013
  • Very pleasant staff overall day + night. Feb 2013
  • Nice clean cozy room design. Informative and pleasant Tech. Feb 2013

Our facilities

Medical Profile

Disorders We Manage

We manage the full spectrum of sleep disorders including:

  • Insomnia
  • Snoring
  • Obstructive Apnea
  • Periodic Limb Movement
  • Restless Legs Syndrome
  • Bruxism (Teeth Grinding)
  • Daytime Sleepiness, Fatigue
  • Sleep Walking
  • Night Terrors, Nightmares
  • Narcolepsy
  • Idiopathic Hypersomnia
  • Jet Lag
  • Shift Work Sleep Disorder
  • Circadian Rhythm Disorders

How we help

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