Lark Health has closed a $100 million Series D funding round led by Deerfield Management Company. The funding round also includes crossover fund PFM Health Sciences, as well as returning investors Franklin Templeton, King River Capital, Castlepeak, IPD, Olive Tree Capital, and Marvell Technology cofounder Weili Dai.

Lark is a healthcare technology company aimed at delivering infinitely scalable, virtual chronic and preventative healthcare through conversational AI. To date, Lark has provided nearly 2 million people with unlimited, 24/7 personalized care.