Irwin Army Community Hospital & Clinics - EFMP Enrollment is located at 600 Caisson Hill Road, Fort Riley, KS 66442. Irwin Army Community Hospital & Clinics - EFMP Enrollment can be reached by their main phone number at (785) 240-7543. Alternatively, you can reach Irwin Army Community Hospital & Clinics - EFMP Enrollment by phone at (785) 240-8373. The listed DSN line is 520-7543. Visit the Irwin Army Community Hospital & Clinics - EFMP Enrollment website by clicking here.