Walgreens' biggest healthcare bet is floundering as it shutters 160 primary-care clinics

• Walgreens' bet on VillageMD continues to flounder. 
• It's exiting 160 VillageMD primary-care clinics, up from the previously planned 60.
• Some analysts are wondering if the giant will exit healthcare to focus on its pharmacy roots.

Walgreens' biggest healthcare bet continues to fizzle.

The pharmacy giant said Thursday that VillageMD has closed 140 locations and plans to shutter another 20. Originally, Walgreens said it planned to exit 60 locations.