General Scheduling and Patient Questions Email: hvraappointments@radnet.com. Location Phone Numbers Mid Rockland: 845-634-9729. Hudson Valley PET/CT Imaging: 845-639-6178. HVRA of Westchester: 914-793-1234. HVRA of Yonkers: 914-776-7700. Billing Questions Phone: 844-833-8651 Online Contact Form.