Aetna, McLaren Physician Partners collaborate to extend coverage in Michigan November 11, 2020 Auto Bot Aetna, Coverage, Insurance, invest pop virtual 2020, Medicare Advantage, News, Payers 0 The health insurer and Michigan-based physician organization are partnering to expand access to in-network care for around 40,000 individual and group Medicare Advantage plan members. The partnership will go into effect Dec. 1.