Volunteers will serve in many capacities at One Hundred Oaks. If you are interested in being considered as an OHO volunteer and you are 18 years of age or older, we ask you to commit a minimum of 48 hours per 6 months. Our patients and families deserve consistent quality volunteer service. Also, the Volunteer Services team invests time and significant resources into your training and your immunizations, so your firm commitment is very important to us. Weekday volunteer opportunities available and flexible scheduling is available for those volunteers who are also employed.