 CHICAGO--BUSINESS WIRE--Oak Street Health, Inc. NYSE: OSH, or the Company, a network of value-based primary care centers for adults on Medicare, today announced plans to open centers in Kansas City, Missouri and Kansas City, Kansas, marking its 21st state in 2022. The Company will also expand its presence in its home state of Illinois, with new centers in Chicago and entry into the cities of Aurora, Peoria and Schaumburg throughout the rest of 2021 and into 2022. Additionally, Oak Street 