Olathe (KS) Medical Center has kicked off the $20.85 million first phase of a construction project that will include the addition of imaging and other outpatient services, new streets and walkways, and park-like landscaping with a water feature. The cost for the first phase of the benefit-district construction is $4.35 million. First-phase plans for a new Olathe Medical Center Pavilion in the expansion area call for a two-story 42,000-square-foot multipurpose outpatient care center.