Avella Specialty Pharmacy Missouri 7 years ago ID: #3973 Listed In : Pharmacist 450 N. New Ballas Rd., Ste. 256 (North Wing), St. Louis. MO, USA 63141 (314) 227-2560 Business Description Avella Specialty Pharmacy Missouri, Address : 450 N. New Ballas Rd., Ste. 256 (North Wing), St. Louis. MO, USA 63141, Phone : (314) 227-2560 Reviews & Ratings Write a Review No Review. Please login / register to add your review.