Social Security Administration (SSA) North Platte Service Type Federal Government, SSA-Social Security Administration, State DepartmentsMore on "What they do" The Nebraska SSA handles several federal programs such as retirement, SSI, Medicare and disability. benefits. Call the closest Nebraska location to your address, for an appointment or more information. TTY 800-325-0778 Website Address Social Security Office Locator by Your zip codeOffice Phone Number 866-830-0668 Address 300 E 3rd St Room 204 300 E 3rd St Room 204 City North PlatteCounty LincolnState NEzip 69101Location Hours Monday, Tuesday, Thursday & Friday 9 AM - 4 PM, and Wednesday 9 AM - Noon.