Mark Linus Leitschuh, MD Internal Medicine - Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 13133 N Port Washington Rd, Suite 122, Mequon, WI 53097 Phone: 262-243-3700 Fax: 262-243-3701
Cardiovascular Disease: An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.