Retired Navy Capt. Casimir F. Park, 77, a physician who served in the Navy Medical Corps for 23 years before retiring in 1970, died Saturday at the Woodbine nursing home in Alexandria after a series of strokes.

Capt. Park spent his last four years with the Navy as a member of the Physical Disability Review Board. He also had been a member of the Physical Evaluation Board, and in both these posts became involved with rehabilitation of veterans of the Vietnam conflict.

He entered the Navy during World War II and saw duty in the Pacific. From 1946 until returning to active duty in 1949, he was a physician with the Veterans Administration in Milwaukee.

Capt. Park was a native of Milwaukee and was a graduate of the University of Michigan's medical school. He earned a master's degree in internal medicine at the University of Pennsylvania.

He had made his home in the Washington area since the 1960s and lived in Bethesda and Arlington before moving to Alexandria in 1970.

Survivors include his wife, Janet, of Alexandria; a daughter, Kathleen Mary May, also of Alexandria; three sons, Jerome, of St. Paul, Minn., Michael, of Valencia, Calif., and John, a physician in Milwaukee; a sister, Wanda Abricki of Milwaukee, and 12 grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the United Community Ministries, 6206 N. Kings Hwy., Alexandria, Va., 22303.