Jefferson Specialty Pharmacy
3500 Horizon Drive
King of Prussia, PA 19406
Phone: 215-955-8154
Toll Free: 1-844-469-7542
Fax: 215-955-8182
If you have been prescribed a specialty medication, please talk to your doctor about submitting a prior authorization request on your behalf.
1-833-422-4690 (TTY 1-877-454-8477)
We are available from 8 a.m. – 8 p.m., seven days a week, from October – March 31 and 8 a.m. – 8 p.m., Monday through Friday, from April 1 – September 30. We are closed on Thanksgiving and Christmas Day.