907 Lorne Street,
Sudbury, ON, P3C 4R6
Phone: 705-670-2000 
Fax: 705-670-2006
Toll Free: 1-844-722-2274

Dr. Lionel...

Dr. Lionel Marks de Chabris, known to his patients as simply "Dr. Lionel", is a pain and addictions specialist working in Northeastern Ontario.


For a complete bio, click here.

Services provided by Dr. Lionel:



Pain Management and Addiction Medicine

Virtual and In-person Consultations to the Medical Community of in North Eastern Ontario.


Treatment and long-term management

of patients suffering from

Drug and Alcohol Addictions and 

patients suffering from Chronic Non-Cancer Pain.


Click on one of these links for more information:

Pain Managment

Addiction Medicine




Teaching and mentoring physicians in the management of chronic pain and the management of drug and alcohol addiction.


Speaking to both Medical and Non-Medical audiences about Chronic Pain, Medical Managment of Pain, Safe Use of Opioids, Substance Use Disorders and Medical Cannabis.


For a list of talks and presentations, 

please click on this link.


Legal / Regulatory


Elected Member of the College of Physicians and Surgeons of Ontario Council. Contact me at


Delivering high quality, unbiased Independent Medical Examinations and Assessments to the Insurance and Legal Industries.




Chief Medical Officer

for ZYUS Life Sciences

A phytotherapeutics company

Advancing the Science of Wellbeing

Currently in Phase 1 trials.


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