a939bda8____California_Health_Advocates_l_Medicare_with_Medigap_Policy_Medicare_Advantage_Plan
[Benefits & Costs] You may be restricted to a list of available providers. No [Medicare Advantage Plan] 
Yes, for some plans. You must use the plan's network of doctors and be referred to a specialist. If you want to see a doctor outside of the plan, you will pay more. The common exception is when you have an emergency outside the plan's service area.
Choosing a Medicare Advantage (MA) Plan | California Health Advocates
Medicare Advantage Plan