"Dr. MacGillivray is clearly very knowledgeable in his specialty. He is confident in what he diagnoses & with his prognosis. He is clear & concise with what he says. The appointments go very quickly, but if you forget to ask any questions directly to the doctor, you can always call the office & they will assist. We were also very satisfied with HSS. We needed to go there for MRI's & for 2 surgeries. It is a well-oiled machine: from the doorman to the intake personnel to the nurses to the aftercare personnel. Everyone knows their job completely."