for WCC schools, by player and NBA season:

BYU. 5 Total NBA All-Star appearances. 2 NBA All-Stars.

Mel Hutchins (4). 1953, 1954, 1956, 1957.

Danny Ainge (1). 1988.

Gonzaga. 10 total NBA All-Star appearances. 1 NBA All-Star.

John Stockton (10). 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000. 

Pepperdine. 5 total NBA All-Star appearances. 1 NBA All-Star. 

Dennis Johnson (5). 1979, 1980, 1981, 1982, 1985. 

Saint Mary's. 1 total NBA All-Star appearance. 1 NBA All-Star. 

Tom Meschery (1). 1963. 

San Francisco. 17 total NBA All-Star appearances. 4 NBA All-Stars. 

Bill Cartwright (1). 1980. 

Bill Russell (12). 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969. 

Fred Scolari (2). 1952, 1953. 

Phil Smith (2). 1976, 1977. 

Santa Clara. 10 total NBA All-Star appearances. 2 NBA All-Stars.

Steve Nash (8). 2002, 2003, 2005, 2006, 2007, 2008, 2010, 2012. 

Ken Sears (2). 1958, 1959. 

48 total NBA All-Star appearances for current WCC schools. 24 of the 48 All-Star appearances have come since 1980. 

For comparison, in-State schools Utah, Utah State, and Weber State. And for good measure, our former MWC rival, SDSU:

Utah. 4 total NBA All-Star appearances. 1 NBA All-Star.

Tom Chambers (4). 1987, 1989, 1990, 1991. 

Utah State. 0 total NBA All-Star appearances. 0 NBA All-Stars.

Weber State. 2 total NBA All-Star appearances. 1 NBA All-Star.

Damian Lillard (2). 2014, 2015. 

San Diego State. 0 total NBA All-Star appearances. 0 NBA All-Stars.