USDA-NRCS » Directory USDA-NRCS » Directory Go back to directory. Add to Address Book. USDA-NRCS USDA-NRCS Contact: Katie Philbrick Work 601 Business Loop 70 West Parkade Center, Suite 250 Boone Columbia MO 65203-2546 work Work Email: katie.philbrick@usda.govINTERNET Categories: Cooperating Member, Federal Updated 11 months ago.