MD 28 continues north along four-lane divided First Street. North of Baltimore Road, First Street continues straight while the state highway veers to the northeast as Norbeck Road. MD 28 intersects the eastern end of Gude Drive, leaves the city of Rockville at its crossing of Rock Creek, and meets the other end of Baltimore Road. The state highway continues east, flanked along most of the way by service roads, many of which are part of MD 655 (Old MD 28). After intersecting MD 115 (Muncaster Mill Road), MD 28 meets MD 97 (Georgia Avenue) in the unincorporated community of Norbeck. The highway heads southeast of a park and ride lot that is accessed from MD 928 before it reduces to a two-lane road and runs along the northern edge of Leisure World. The state highway crosses over MD 200 (Intercounty Connector) with no access immediately to the west of Wintergate Drive, where it crosses the ICC Trail. After crossing Batchellors Run, MD 28 expands to a four-lane divided highway for its terminating intersection with MD 182 (Layhill Road) near Norwood. Norbeck Road continues east as a county-maintained highway toward the intersection of MD 650 and MD 198 near Spencerville.