Dr. Montalvan is board-certified in Internal Medicine and completed his internship and residency training in Mt. Vernon Hospital, Mt. Vernon, New York. He has a broad medical background having worked in Occupational Medicine, and Emergency Medicine in Newark, New Jersey and New York.

Dr. Montalvan had his own Internal Medicine practice for over fifteen years in Rochelle Park, New Jersey and admitted to renowned Hackensack University Medical Center. He enjoys teaching and is an associate clinical professor at Schmidt School of Medicine at Florida Atlantic University.  He speaks fluent English and Spanish and is the father of twin daughters and one son.