With FOSRx, Your Specialty Prescription is our Number One Factor.


FullSizeRenderFounded in 2014, Factor One Source Pharmacy is a Specialty Pharmacy with an unwavering commitment to excellence in providing treatments and products for our patients with outstanding customer service. Headquartered in Cumberland, Maryland we are a fast-growing company that is focused on enhancing patient safety and medication adherence.

At Factor One Source Pharmacy, it is our mission to serve patients with chronic medical conditions that require detailed specialized medication management. Our team of healthcare professionals customize home infusion and specialty needs, and the extensive monitoring required to generate favorable outcomes. Our encouragement of patient advocacy, our unique pharmacist credentials, and our personal relationships with our patients, separate Factor One Source Pharmacy from the competition.

Our President & CEO, Dr. Sajal Roy graduated from The University of the Sciences in 2004 with his PharmD.  After graduating he pursued Board Certifications in Patient Safety, Geriatrics, Anticoagulation, and Specialty. 

Dr. Roy is serving his first term as a Commissioner on the Maryland Board of Pharmacy and National Boards of Pharmacy, and is an Officer of the FDA for Sterile Compounding matters affecting the State of Maryland.  Additionally, Dr. Roy is the only quadruple board certified pharmacist in the United States (PharmD, CGP, CACP, CPSO, CSP), and sits as a commissioner for the Maryland Board of Pharmacy, in addition to serving as Chairman of the Emergency Preparedness Task Force.