EAST PATCHOGUE- Hoping to develop one of the last pieces of vacant land in the vicinity of Brookhaven Memorial Hospital, the Damianos Realty Group is moving ahead with plans for an office development valued at $7 million. The Smithtown-based developer is in contract to acquire the five-acre parcel on Hospital Road, subject to Brookhaven Town’s approval to develop the project. Currently, Damianos has plans to develop a 50,000-square-foot speculative medical office facility. Damianos principal Chris Damianos said the project could feature either one large building or two smaller sites. Why medical office? “It’s the only angle to be played there,” he said, noting the firm is hoping to attract local doctors looking for “first-class office space.” Damianos said the five-acre tract is unique because it is located directly across from the hospital on the west side of Hospital Road.