3 months ago I had surgery for an emergency small bowel obstruction. Clean incision and quick to heal. I was so fortunate to have this amazing doctor as my surgeon. Great follow-up visit; all the attributes you look for in a doctor. Personable, pleasant, caring professional that talks to you and puts you at ease right away. FMC is privileged to have him onboard. 10 out of 5 for this doc!

Patient, Caring, thorough and understanding. Mine was a complicated surgery with perfect results. Best doctor I've ever met!

I was extremely lucky to have Dr. Mack for my stomach Cancer surgery in 2010. He is incredible & saved my life! I was the mom of a teenager and happy to still be here, 15 years later. A very caring Doctor & I still have his business card in my wallet for "Good Luck".

Dr. Mack is super fantastic. He was very supportive and knowledgeable with my sarcoma diagnosis and care.

Recently met Dr. Mack for an emergency appendectomy. Very kind, patient and understanding. Surgery went well and I’m very thankful to Dr.Mack.

Dr. Mack is the most amazing doctor. Knowledgeable, caring, patient. He literally saved my life. I went to Calgary because Toronto told me that I was not a candidate for HIPEC surgery to save my life. They gave me less than 5 years. Dr. Mack ended up doing the surgery and I am now 1 year cancer free. He is my Hero and I will never ever forget what he has done for me. God Bless this man.

Dr. Mack is fabulous, not just because he's a great surgeon but the authenticity of his care and experience made all the difference in facing a cancer diagnosis. I found him to be incredibly dedicated and I cannot imagine going through this without him and his team.

Dr. Mack is the epitome of what a doctor is supposed to be. Caring, patient, knowledgeable, and an amazing surgeon and person.

It was so fortunate to have Dr. Mack as my surgeon! I had a very rare big GIST and I might have lost my stomach/ even with my spleen. My family and I were so grateful that he tried his best and successfully removed the tumor by laparoscopy. I only had partial gastrectomy with smaller incisions. We couldn't believe how amazing and incredible job Dr. Mack did! All the best and take care!!

Very fortunate to have this Dr. Kind, very helpful. Trust him very much.