The Coastal Health Alliance is hoping to move its dental practice from a van to a brick-and-mortar office. After three years in operation, the van, parked behind the Point Reyes Station Community Health Center on B Street, has proven to hamstring services with its cramped space and limited infrastructure. When a location opened up in the Livery Stable building, the health alliance’s executive director, Steven Siegel, seized the opportunity. The nonprofit submitted plans for the…