Simkhovich (Simchowitsch) Boris (1947, Riga) — cardiologist, scientist, educator, Doctor of Medical Sciences.

In 1971, Boris Simkhovich graduated from the Riga Medical Institute. In 1974, he defended his Candidate of Sciences (PhD) dissertation, and in 1988, his Doctor of Sciences dissertation.

He worked as a lecturer at the Riga Medical Institute, and held positions as junior researcher, senior researcher, and head of a laboratory at the Institute of Organic Synthesis of the Academy of Sciences of the Latvian SSR.

In 1988, he was awarded the First Prize of the Academy of Sciences of the Latvian SSR.

In 1989, Boris Simkhovich emigrated to the United States, where he continued his research at the University of Southern California. From 1995, he served as a professor at the School of Medicine of that university.

His main research focused on the development of anti-cancer and cardiovascular drugs. He supervised the development and clinical implementation of the antianginal drug Mildronate (meldonium).

In the United States, he studied endogenous protective mechanisms in ischemic myocardium and the potential of cell transplantation as a novel approach to restoring damaged heart muscle.

He served as a reviewer for leading American and international cardiology journals and for the American College of Cardiology.