Digital health company Grand Rounds, which was last valued at $1.34B, is merging with Doctor On Demand, which was last valued at $875M, in an all-stock deal (Ari Levy/CNBC)

Ari Levy / CNBC:
Digital health company Grand Rounds, which was last valued at $1.34B, is merging with Doctor On Demand, which was last valued at $875M, in an all-stock deal  —  - Grand Rounds and Doctor On Demand, two venture-backed digital health companies, are merging in a deal that will form a multibillion-dollar entity.