Doherty, Duggan, Hart & Tiernan Share: Insurance Agencies Doherty, Duggan, Hart & Tiernan Visit Website 1221 South Houston Lake Rd. Ste. 2 Warner Robins, GA 31088 478-218-2040 x2 (229) 435-3036 (fax) About Map About Independent agent offering the southeast the opportunity to choose the best coverage of competitive prices, coupled with expertise and commitment to customer satisfaction. What's Nearby? Distance: 5 10 15 20 25 50 mi.