Military trained in Emergency Medicine, Hejmanowski began his career as a flight surgeon. Throughout a career that spanned over a decade, he spent time overseas with both the United States Navy and the Marine Corps. Dr. Hejmanowski is currently an emergency room physician in the Southeastern United States.

Born in 1971 in Buffalo, NY. He attended Hartwick College in Oneonta, NY, where he completed his bachelor's degree in biology. While there, he met the woman who would become his wife. The United States Navy provided Hejmanowski a tremendous opportunity in offering him a full academic scholarship to attend medical school at Midwestern University, in Chicago. Upon graduation, Hejmanowski was accepted into a surgical internship at the Naval Medical Center in Portsmouth, Virginia, followed by Flight Surgery School in Pensacola, Florida.

He and his wife lived in Okinawa, Japan for a year while stationed with a U.S. Marine Corps helicopter squadron. From there, he was given orders to Rota, Spain and served as the sole flight surgeon for the Navy's largest squadron. Medicine and helping others has always been a true calling for him, and Hejmanowski and his family returned to the Naval Medical Center in Portsmouth, Virginia where he completed an additional three year residency in Emergency Medicine. After becoming board certified, Hejmanowski was stationed at the Naval Hospital Jacksonville, Florida.

As an ER physician, Hejmanowski deployed with the United States Marines to Al Taqqadum, Iraq from the summer of 2008 to the spring of 2009. For several months, within a mobile surgical unit, he lead a Shock Trauma Platoon, moving with the Marines along the Syrian boarder. It was here, during quieter moments in a tent, that he began to write his first full-length novel, "Collider."

Out of the Navy now, Hejmanowski is still in full time practice as an Emergency Medicine physician. When not working or writing, he enjoys spending time with his wife and four children, as well as woodworking and restoring classic cars.