Directions to Marsh McLennan Agency Directions to Marsh McLennan Agency Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> Services >> Finance Marsh McLennan Agency 960 Broadway Ave Ste 500 Boise, ID 83706 | map Mike Zahn (208) 424-2900 | fax: (208) 424-2999 Visit Site Get directions to: Marsh McLennan Agency, 960 Broadway Ave Ste 500 , Boise ID Get directions from: Click to Print This Page