Monday through Friday: 8 a.m. - 5 p.m. Tuesday: 9 a.m. - 5 p.m. If you have an urgent medical, mental health or gender violence support concern outside of business hours and need to speak to an on-call provider, please call 303-871-2205. Due to COVID-19 and the Mandatory Lock-down, access to the doors for the DU HCC Ritchie Center are locked..