Fleisher played the Black Course at Bethpage State Park last week, and decided that it was not a layout he could compete on.
'A couple of par fours I can't get home on,' Fleisher said after shooting a 2-over-par 74 at the Senior PGA Championship at Firestone Country Club in Akron.
'They say it is an honor. I don't know if it's an honor trying to break 75.'
The Black Course measures 7,214 yards, the longest U.S. Open course in history.
Fleisher qualified for the U.S. Open when he won the U.S. Senior Open at Salem Country Club last July.
'I just think the golf course is just a little bit too much,' Fleisher said. 'I want to support our tour.'
Fleisher will instead play in the BellSouth Senior Classic at Opryland, a tournament he won in 1999.
Full Coverage of the 102nd U.S. Open