John Gretz's Location
Napa, CA, US
John Gretz's Skills
John Gretz's Summary
John Gretz, based in Napa, CA, US, is currently a Director of Wine Education at Shafer Vineyards. With a robust skill set that includes Event Management, Restaurants, Wineries, Sales Management, Wine Tasting and more, John Gretz contributes valuable insights to the industry. John Gretz has 1 email on RocketReach.