Speaking at a pre-Super Bowl news conference Thursday, Pash explained that the doctors would not be paid by the clubs or hired as team physicians. There could be more than one neurologist assigned to each team to divide home and road games.
Pash said "details need to be worked through" with the NFL Players Association.
The NFL is facing concussion-related lawsuits from thousands of former players.
In a series of interviews about head injuries with The Associated Press in December 2011, 31 of 44 players said they wanted the league to have independent neurologists at games.