(AREA) -- Blue Cross Blue Shield of Michigan has designated four Sanilac County practices as patient-centered medical homes, placing them among a select number of primary care practices in the state that are improving health care quality and lowering costs. Designated practices include Lakeshore Internal Medical of McKenzie Health System, McKenzie Family HealthCare, McKenzie Health System in Croswell and the Physician Health Care Network of Lexington. Patient-Centered Medical Homes practices offer patients services that may not be offered at nondesignated practices, such as 24-hour access to the care team. PCMH practices coordinate specialists and other care, such as nutrition counseling, home care or links to community services. They also teach patients how to manage conditions such as asthma and diabetes. Recently, Blue Cross Blue Shield of Michigan announced savings estimated at $155 million over the first 3-years of the program. Now in its 5th year, the number of physicians earning PCMH designations has tripled since the program launched in 2009.