UPMC Imaging Services, Walnut Bottom. 850 Walnut Bottom Rd. Carlisle, PA 17013. Phone: 717-230-3700. Phone 2: 866-455-9729. Fax: 717-703-1111. At UPMC Imaging Services, our highly trained, caring professionals use the most up-to-date technology to get a good look inside your body and deliver timely, precise diagnoses..