Elected: 2012. Mark Robert Proctor was born on October 22, 1964 in New York City and raised on Long Island as the youngest of three children. His parents, Roslyn and Seymour, ran a small printing shop, and he comes from a long lineage of printers. He entered Dartmouth College in 1982, was a varsity heavyweight oarsman, rowing all four years, and graduated with a major in French.

In 1986, he entered Columbia University College of Physicians and Surgeons, obtaining his MD degree in 1990. He was an active rugby player and team captain at Columbia. Mark did his general surgery internship at Columbia Presbyterian Hospital followed by neurosurgery residency at Georgetown University. In 1997, he went to Children's Hospital Boston for his Pediatric Fellowship. He joined the faculty at Children's Hospital and Brigham and Women's Hospital in 1998 as an instructor of surgery at Harvard Medical School. He became Assistant Professor in 2003, Associate Professor in 2010, and the Franc Ingraham Professor of Neurosurgery in 2018. Mark has served as the Associate Director of the Brigham and Children's Residency Training Program since 2000, directing the residency training at Children's Hospital. He served on the Admissions Committee at Harvard Medical School from 2001 to 2004 and was appointed Vice -Chairman of Neurosurgery at Children's Hospital in 2012. In 2016, he became Chairman of Neurosurgery at Boston Children's Hospital.

His clinical interests include craniofacial disorders, complex pediatric spinal disorders, and neurotrauma. Nationally, Mark has been very involved in advocacy and injury prevention. He has been on the board of the Thinkfirst National Injury Prevention Foundation since 2002 and served as Chairman of the Board from 2009 - 2011. He is on the Executive Committee of the Pediatric Section of the AANS/CNS, served as the Membership Chair from 2007-2010, and subsequently Treasurer, Secretary, Chair-elect and Chair from 2017-2019. He was President of the New England Neurosurgical Society in 2017-18, and is also Vice President of the Massachusetts Neurosurgical Society.

Mark married Dr. Charlotte McKee, a medical school classmate, in 1991. She is a pulmonologist and works in the field of lung transplantation and with the biotech industry. They live in Newton, Massachusetts with their two children, Maxwell and Kenny. They enjoy bicycle riding and boating at their lake house in NH, and Mark is also an avid squash player.