Marine Centered Medical Home Wallace Creek, a new clinic aboard Marine Corps Base Camp Lejeune, serves approximately 9,000 servicemembers. - Marine Centered Medical Home Wallace Creek, a new clinic aboard Marine Corps Base Camp Lejeune, serves approximately 9,000 servicemembers. MCMH Wallace Creek is one of several additions and upgrades to health care for Marines and Sailors in Eastern North Carolina. The 42,365 square foot facility houses several ambulatory capabilities including primary care, physical therapy, radiology, and dental among others.