Dr. Merritt Huber has opened an MDVIP-affiliated family medicine practice at 201 Oakbrook Lane, Suite 295, in Summerville.Huber has practiced family medicine in the Charleston area for more than a decade and said his new practice will focus on preventive care and long-term management of chronic conditions such as diabetes, high blood pressure and heart disease.“It's not enough to wait until someone is in their 60s or 70s to start addressing hear…