Quartet, the creator of a collaborative healthcare platform, took its total funding to $87m with a series C round featuring existing backer GV.

US-based collaborative healthcare platform developer Quartet raised $40m in series C yesterday from investors including GV, the corporate venturing unit formerly known as Google Ventures.

F-Prime Capital Partners, a subsidiary of financial services group Fidelity, co-led the round with venture capital firm Polaris Partners. VC fund Oak HC/FT and hedge fund sponsor Deerfield Management also participated.

Quartet is working on a data-focused platform that will make use of physicians, mental health providers and insurance companies to identify at-risk patients and…