Urgent Care Hawaii, formerly US Med Urgent Care, has opened a Waikiki clinic, its fifth location on Oahu. The 1860 Ala Moana Blvd. clinic has physicians on staff seven days a week from 7 a.m. to 7 p.m. weekdays and 8 a.m. to 6 p.m. weekends. The company recently acquired three Medical Corner urgent care centers in Kailua, Kapolei and Honolulu, which opened May 16. Donna Schmidt, founder and CEO of Urgent Care Hawaii, opened its first center in Pearl City in 2011.