Webcvs agrees to buy oak street health in $10. 6 billion deal. Equity value of the deal is pegged at about $9. 47 billion; Insurers look to profit by reducing medicare. Webcvs health is buying oak street health for $10. 6 billion, its biggest move into primary care yet. The deal adds 169 clinics to cvs's network and goes beyond the. Cvs, +1. 23% said wednesday it has agreed to acquire oak street health inc. Osh in a deal with an enterprise value of about $10. 6 billion, confirming.