BOULDER, Colo. — Now 10 years operating its unique footprint in the shadow of the Rocky Mountains, Pharmaca Integrative Pharmacy has been revving its growth engine lately. Pharmaca is targeting three new store openings in 2011, and between three and six new stores each year through 2015 — a pace that would put the chain at 44 locations in time for its 15th anniversary. “We will be expanding outside of the states in which we currently operate in the future,” said Mark Panzer, Pharmaca president and CEO.