Delaware Park Management Co

The Nation's Largest Correctional Pharmacy Provider

SpecialtiesWhy Choose Diamond Pharmacy? Diamond is the nation's largest correctional pharmacy provider and Pennsylvania's largest independently owned Long Term Care pharmacy. With a complete pharmaceutical and medical supply line, online services, and comprehensive program, Diamond will save your facility time and money. Diamond's success began in 1970 when Gilbert and Joan Zilner, both pharmacists, purchased a retail pharmacy located in downtown Indiana, Pennsylvania. Mark Zilner joined the business in 1991 and provided new perspective and energy. Mark has helped to improve, enhance, and add features that have led to an expansion of Diamond's services. Due to the personalized service and cost effective pricing, Diamond has experienced tremendous growth, currently operating a 135,000 square foot state-of-the-art institutional pharmacy, IV infusion facility, two retail pharmacies, and a medical supply facility. Combining the values of a family owned business with cutting edge technology has mad