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Our Doctors

We are proud of our entire staff at the Holly Endoscopy Clinic. Specifically, we have 20 highly trained physicians conducting our upper and lower endoscopic procedures.  

Dr. Douglas Hamilton, our medical director at Holly Clinic, was the Founding Chief of Surgery at Scarborough General Hospital, a position he held for 10 years. As well, Doug was founding president of that hospital’s medical staff and a member of the hospital’s Board for 17 years.

Our other impressive physicians include:

Specialty: General Surgery

Dr. Nasser Aminazadeh, MD, FRCS(C)
Dr. Shady Ashamalla, MD, FRCS(C)
Dr. Fred Brenneman, MD, FRCS(C), FACS
Dr. John Hagen, MD, RCPS(C)
Dr. Ali Hazrati, MD, FRCS(C)
Dr. Michael Ko, MD, RCPS(C)
Dr. Chloe Clicquot McAlister, MD, FRCS(C)
Dr. Laura Musselman, MD, RCPS(C)
Dr. Ashlie Nadler, MD, MPH, FRCPS(C), FACS
Dr. Neil Orzech, MD, RCPS(C)
Dr. Theodore (Ted) Ross, MD, FRCS(C)
Dr. Joseph Sadek, MD, RCPS(C)

Specialties: Gastroenterology, Internal Medicine

Dr. Brian Chan, MD, RCPS(C)
Dr. Lawrence B. Cohen, MD, MSc, FRCP(C)
Dr. Jennifer Kaufman, MD, FRCP(C)
Dr. Niculina Mariana Margulies, MD, RCPS(C)
Dr. Stacey Shapira, MD, RCPS(C)
Dr. Stephen Taylor, MD, FRCP(C)
Dr. Lay Lay Win, MBBS, FRCP(C)