Dr. Mark Christopher Porte Dr. Mark Christopher Porte Suite LL2 1 Quarry Ridge Road Barrie ON L4M 7G1 Phone: 705 739 1233 Fax: 705 739 1003 Barrie Surgeons Ontario Surgeons Joint Replacements Surgical Wait Times Back Pain National Surgeon Directory Non-Surgical Treatment Private Surgery Surgical Wait Times Joint Replacements Back Pain Orthopaedic Triage