CVS MinuteClinics hires a new chief medical officer in the midst of buying Aetna By: CNBC.com News April 13, 2018 at 10:23 AM EDT Dr. Marc-David Munk's former employer, Iora Health, has innovated in primary care, a key focus area as CVS merges with Aetna. Read More >> Related Stocks: Aetna Amazon.com CVS Health Corp