Hawaii Medical Service Association is on track to open its second of three planned customer service centers that will provide Hawaii residents with information about health-care reform and health insurance, as well as general information on health and wellness. The first center, called HMSA Center @Honolulu, opened on Oct. 1 in a 3,600-square-foot space at its Keeaumoku Street headquarters, and its second customer service center, to be called @Pearl City, will open in a 3,000-square-foot space at…