Hopkinton Internal Medicine & Pediatrics. 1 Lumber Street. Suite 200. Hopkinton, MA 01748. Phone: 508-435-5936 Fax: 508-435-4616. View map of this location. M-Tu: 7am - 5pm W: 8:30am - 5pm Th: 7am - 5pm F: 8:30am - 5pm S-Su: Closed - Closed Please note that while we are open for patient visits during the hours listed above, hours to contact the office are 8:30am-4:30pm, Monday through Friday..