The new AmeriHealth Caritas headquarters will have a fitness center, a cafeteria and access to day-care, the company said. After the project is built in 2021, a 373,000-square-foot portion of the Airport Business Center will be renovated with similar amenities for occupancy by the company's customer-service and tech-support employees, as well as by its entire Keystone First unit, which manages Medicaid coverage in the Philadelphia area.