Regional Medical Laboratory is an in-network laboratory for a number of national and local insurance companies including Aetna. Click Here for more information including our in-network status by using Aetna's Find a Provider section on Aetna.com. For comprehensive information for Coronavirus testing. Click Here.Labworks‧Billing‧Specimen Collection‧RML Patient Locations‧Online Supply Ordering‧RML PSC Locations.