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John G “Mac” McGregor 1928-2017

John G. “Mac” McGregor, MD, gastroenterologist and Pima Medical Society 50-year Member, died March 6, 2017. He was 88.

A native of southern Arizona, McGregor was born June 8, 1928 in Bisbee. He attended Stanford University before earning his medical degree from George Washington University in Washington, D.C. in 1953. He joined the U.S. Army and was an intern at William Beaumont Hospital in El Paso for a year and completed his residency in internal medicine at Brooke Army Hospital at Ft. Sam Houston in 1959. He received a fellowship to Walter Reed Hospital in Washington, D.C, and was Chief of Medicine at the U.S. Army Hospital in Augsburg, Germany. After resigning his commission in 1962, McGregor returned to southern Arizona to practice gastroenterology in Tucson. He helped establish the first gastroenterology lab at Tucson Medical Center in 1966. He retired from practice in 1989.

McGregor served PCMS as Secretary Treasurer in 1980 and 1981 and was a member of the Board of Mediation for three years, serving as chairman in 1980. He participated on several other PCMS committees upon joining in 1963.  He was also active in the community as Chairman of the Health and Hospital Division of the Tucson Community Council; Vice President of the St. Joseph’s Hospital Medical Staff; a representative to the American Diabetes Association and President of the Medical Society of the United States and Mexico.

Away from his practice, McGregor volunteered as a docent to the Arizona-Sonora Desert Museum and was a member of the Tucson Medical Center Auxiliary, helping at the information desk and driving visitors around the TMC campus. He loved animals and helped veterinarians perform endoscopies and medical examinations on animals including dogs for the Tucson Police Department and residents of the Reid Park Zoo.

He is survived by his wife Lynne; daughters Ruth Jones, Bonnie Jean (Kenny) Wilson; son Bruce and their mother Jean; grandchildren Ashley (Carson) Mehl, Thatcher Jones, Jesse (Jessica) McGregor, Jenna (Joe) Allen, Brittany McGregor and three great grandsons. A celebration of his life was held May 6 at TMC’s Marshall Auditorium.

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