ANDOVER – Dr. Alan Arthur Chastanet, M.D., of Andover, and Plymouth, Mass., died Sunday, April 20, at his home, Pynelis, surrounded by his loving family and friends.

He was born in Castries, St. Lucia, West Indies, on Sept. 7, 1921, the eldest son of Arthur Charles Chastanet and Iris (Monplasir) Chastanet, in a family of 10 children. He was educated at St. Mary’s College in Castries, St. Lucia.

During World War II, he served as a civilian radio operator in HMS Royal Navy in St. Lucia. He attended Harvard Dental School, receiving a D.M.D. degree in 1951, an M.D. degree from Harvard Medical School in 1953, and did his internship and residency program at Boston City Hospital in Boston, Mass.

He was a board certified radiologist who practiced at Sturdy Memorial Hospital in Attleboro, Mass., for 30 years, retiring in 1988. He had a private radiology office in Franklin, Mass., where he also served as town physician. He was a lieutenant in the U.S. Naval Reserve and was honorably discharged in March 1969.

He moved his family to Maine in 1989, and began a second career as chairman of the Department of Radiology at Rumford Community Hospital, Rumford, until his retirement in September 2007.

While in Maine, he enjoyed gardening, his orchard, raising sheep, and restoring his historic home, Pynelis, in Andover. He was an avid reader and enjoyed discussing politics. For many years, he enjoyed lobstering and fishing at the family’s summer home in Plymouth, Mass. He was a communicant at Zion Lutheran Church, Plymouth, Mass.

He was a member of the American Medical Association, American College of Radiology, Society of Nuclear Medicine, Massachusetts Medical Society, Maine Medical Society, and Bristol North Medical Society.

He leaves his wife, Marcia A. Chastanet of Andover; their three children, Michele L. Chastanet-Shinn, her husband, J. Robert Shinn, and their two sons, Hayden Alexander and Riley Alan Shinn, of Hawthorn Woods, Ill., James Alan Chastanet of Arlington, Va., and Ryan M. Chastanet of Bethel; three sons from his first marriage, David L. Chastanet and his wife, Nancy, of Riverside, R.I., Paul Chastanet and his wife, Lori, and daughter, Jordan of Northboro, Mass., and James Arthur Chastanet of Miami, Fla.; two sisters, Alice Kefalas of Lexington, Mass., and June Zenar of Plantation Hills, Fla.; along with three brothers, Sir Michael Chastanet of Castries, St. Lucia, W.I., Desmond Chastanet of Cherry Hill, N.J., and Dr. David Chastanet of White Plains, N.Y.