Our Providers


Many of the providers at the Marsden Centre are recognized experts in their fields of specialties.

All of the naturopathic doctors have completed post-graduate residency programs under the training of clinic director Dr. Eric Marsden.

They all believe in the importance of a patient centred approach with conscientious and compassionate care.  We will all do our best to provide the very best naturopathic care in a friendly, respectful atmosphere.

To find out more about a specific provider click on their image below.

Eric Marsden BSc ND

Clinic Director & Post-Graduate Residency Program Director

Dr. Marsden ND is the director of the Marsden Centre and the 2 year, full-time naturopathic oncology residency program.  His practice focus is in integrative oncology.

Von Chaleunsouk-Marsden BSc ND

Assistant Clinic Director

Dr. Chaleunsouk-Marsden ND is the assistant clinic director.  Her practice focus is in environmental medicine, allergic illness, and general family practice.

Lei Gu BSc ND

Associate Medical Director

Dr.Lei Gu ND is a clinic fellow at the Marsden Centre. She has completed the oncology residency program and is an integral part of our team. She is an IVIT therapy certified practitioner. Her practice focus is in Integrative Oncology.

Martha Sharpe BA ND

Clinic Resident

Dr. Sharpe ND is a clinic resident at the Marsden Centre. She is completing her first year of the Marsden Centre’s integrative oncology residency program. Her practice focus is in integrative oncology.

Becky Lee BSc ND

Clinic Associate

Dr. Lee ND is an associate ND at the Marsden Centre and graduate of Marsden Centre’s naturopathic oncology residency program. Her practice focus is in integrative oncology and general family practice.

Vaishna Sathananthan

Clinic Resident

Dr. Sathananthan is registered and in good standing with the College of Naturopaths of Ontario. She is a member of the Oncology Association of Naturopathic Physicians, the Ontario Association of Naturopathic Doctors, and the Canadian Association of Naturopathic Doctors.

Christine Wickson NP

Nurse Practitioner

Christine is a Master’s educated Family Nurse Practitioner in the province of Ontario. She has been licensed with the College of Nurses, first as an RN in 1997 and then as an NP in 2005.