OPEN HEALTH CARE CLINIC. 3801 North Blvd, Baton Rouge, LA 70806 | (225) 655-6422 | (225) 341-5903 Fax | PrEP Hotline: (225) 505-2933 . Hours of Service Monday - Friday: 8:00 am - 5:30 pm. Current patients can contact us after hours by calling (225) 655-6422.