Great question but the true response is "it depends!" If the plan priorities only pertain to the hospital than you might not see a need for the stakeholders. However, I would discourage that and here's why. Periodic stakeholders meeting will hold you accountable in making progress on your community priorities. In addition, engaging shareholders may bring more resources to the table and certainly will promote good will in the networking that might go on during the meetings.
 
Very few community problems will focus only on the hospital. For example an increase in domestic violence may show up in the ER but it also impacts law enforcement, schools, counseling agencies, etc. So, having these stakeholders involved on a monthly basis might be a good way to start honest discussions on how best to help repeat victims and their families.
 
Another reason for keeping the group together is people who actively participate in problem solving are more committed to finding solutions. So, whether you meet monthly, bi-monthly, quarterly or annually really depends on the problem you're trying to address, the resources that may be needed to effectively make a difference and the people or agencies that are directly impacted.