Richard N. Dexter earned his M.D. from Cornell University in 1959. He is Professor Emeritus of Medicine in the Division of Endocrinology at Indiana University-Purdue University in Indianapolis.

Dexter specializes in Endocrinology with a sub-specialty in Internal Medicine. His clinical research focuses on pituitary, adrenal, and thyroid diseases.

Dexter is an Honorary Member of the Masters of the American College of Physicians.