Woonsocket, R.I., and Chicago — CVS Health has agreed to acquire Oak Street Health in an all-cash transaction at $39 per share, representing a total purchase price of roughly $10.6 billion. The price represents a premium of approximately 11.9% over Oak Street’s opening price per share this morning. Chicago-based Oak Street Health is a network of primary care centers for adults on Medicare. The company employs approximately 600 primary care providers and maintains 169 medical centers across 21 states. By 2026, Oak Street Health plans to grow to more than …