Positioned on a prominent corner lot, 183 Mineola Boulevard presents a rare opportunity to acquire a free-standing, multi-level office building in the heart of Mineola. Offering monumental exterior signage, approximately 19,000 vehicles per day, two curb cuts, and a designated parking lot scheduled for professional sealing and restriping, the property delivers exceptional visibility, accessibility, and convenience. Located just 0.3 miles from the Mineola LIRR and minutes from NYU Langone Hospital, the property benefits from a highly desirable professional and medical corridor. The interior features three fully functional office levels, keyless entry, concrete flooring, exposed ceilings, custom lighting, floor-to-ceiling windows, custom artwork and murals throughout, and a full sprinkler system. The first floor offers an inviting reception area, private offices, open workspaces, break rooms, and two restrooms, including one ADA-compliant facility. The lower level features a conference room, additional restroom with mop sink, server room, mechanical space, 400-amp electrical service, an HVAC handler installed in 2021, and four separate electric meters. The second floor provides expansive open office space, abundant natural light, floor-to-ceiling windows, and a private restroom. Ideally suited for an owner-user, medical practice, or professional investor seeking a highly visible and versatile commercial property.