What to know about Chapter, the Medicare startup cofounded by Vivek Ramaswamy that was just valued at $1.5 billion

The startup, which helps seniors navigate the Medicare system, is raising funds at a time when cuts to government services could impact how well the system runs.

Chapter, a Medicare advisory startup cofounded by Vivek Ramaswamy, announced on Wednesday it has closed on $75 million in Series D funding, at a valuation of $1.5 billion, backed by venture firm Stripes, and a number of private equity investors.