what is the um hospital called
UM Medical Center Locations. Â© 2017 University of Maryland Medical Center (UMMC). All rights reserved. UMMC is a member of the University of Maryland Medical System, 22 S. Greene Street, Baltimore, MD 21201. 1.800.492.5538 TDD: 1.800.735.2258 Physician Referral: 1.800.373.4111.