Senior Management Staff

The Professionals Resource Network is excited to introduce you to our new Medical Director and CEO, Michael John Sorna, MD, MSA, FASAM.  Dr. Sorna comes to us with a wealth of training and practice that makes him the ideal choice to lead PRN and the professionals we serve into the future.   He was a … [Read more...] about Michael J. Sorna, M.D., MSA, FASAM

Tish Conwell is the Chief Operating Officer at PRN. Ms. Conwell has worked at PRN since 2001, and assumed the role of Chief Operating Officer in 2019. Ms. Conwell’s responsibilities include management of the Administrative Department staff and operations, liaison with the Florida Medical … [Read more...] about Tish Conwell

Delena graduated from California State College (now California University of Pennsylvania), with a Bachelor of Arts in Psychology and an Aging Specialist Certificate. She is also a graduate of Springfield College in Tampa, Florida with a Masters of Science in Human Services, and a minor in Community … [Read more...] about Delena R. Torrence, MS, CAP, ICADC

Penelope P. Ziegler, M.D., FASAM, is the former Medical Director and Chief Executive Officer of the Professionals Resource Network, Inc. (PRN). Before coming to PRN in July 2013, Dr. Ziegler was the Medical Director of the Virginia Health Practitioners’ Monitoring Program. She has worked in the … [Read more...] about Penelope P. Ziegler, M.D., FASAM