to wit: when Anthem tried to adopt Medicare's rules for anesthesiology
  comp, they were excoriated

For everyone in the back: that's not what happened. BCBS tried to place arbitrary limits on anesthesia payment. Medicare does not do this. Physician complaints with Medicare payments revolve around the hourly rate. Physician complaints with BCBS revolve around arbitrarily setting a hard limit for the amount of time a procedure is allowed to take. One is limiting cost, the other is limiting care.