Welcome! My name is Mark Klein. I am a physician and author. I practice medicine in Washington, DC. I am also an Assistant Professorial Lecturer at the George Washington University Medical Center and have taught physicians from around the nation and the world.

I have written and published three books, the latest a novel titled Franklin Rock. My other two books are non-fiction. The first, “What Do I Do Now? A Handbook for Life”, is in the self-help category. The second, “The Currency of Life: Uncovering the Clues to Why We’re Here”, explores the purpose of human life and answers the question, why are we here?

You may view them on my website, markekleinmd.com

Contact: info@greenbriarpublishing.com