Page Menu+About the DepartmentLocations About the Department Our UM Health-Sparrow Nephrology team provides diagnosis and treatment for patients with medical diseases involving the kidneys. Locations Charlotte Nephrology 111 Lansing St., Suite 100 Charlotte, MI 48813 Phone: 517-364-5550 Ionia Nephrology 550 E. Washington St. Ionia, MI 48846 Phone: 517-364-5550 Lansing Nephrology 1200 E. Michigan Ave., Suite 700 Lansing, MI 48912 Phone: 517-364-5550 St. Johns Nephrology 901 S. Oakland St., Suite 102 St. Johns, MI 48879 Phone: 517-364-5550