Lower Merion, PA. 301 East City Line Ave Suite 140 Bala Cynwyd, PA 19004 Phone: 610-660-0777 Fax: 610-660-6298. Map Directions. Hours: Tuesday: 8:30 AM - 6:00 PM Friday: 8:30 AM - 5:00 PM. Allergy Shot Schedule: April . Office News ».