Gregory J. Chapis, M.D.
Dr. Chapis attended Temple University School of Medicine and completed his residency in Physical Medicine and Rehabilitation at Temple University Hospital where he served as Chief Resident. After completing a fellowship in spine and musculoskeletal medicine at Portner Orthopedic Rehabilitation, he eventually returned to his hometown in 1996 and founded Performance Spine and Sports Physicians, P.C., a practice dedicated to the non-surgical management of spine and musculoskeletal disorders. Dr. Chapis is Board Certified in both Pain Medicine and Physician Medicine and Rehabilitation. He is on the Medial Staff at Pottstown Hospital where he also served as President of the Medical Staff, medical Staff Treasurer and has served on the Pottstown Hospital Board of Trustees. He remains active on the Medical Executive committee, the Hospital's Medical Credential's Committee and Physician Leadership Group. Currently he serves as Medical Director of Phoenixville Hospital Regional Rehab unit. Co- director of the Phoenixville division.
Christopher C. Dankmyer, M.D.
Dr. Dankmyer is board certified in both physical medicine and rehabilitation and pain medicine. He graduated from Thomas Jefferson Medical College in Philadelphia, Pennsylvania. He completed his internship at Lankenau Hospital and a year of internal medicine at Abington Hospital. He completed his residency training in physical medicine and rehabilitation at Temple University Hospital in Philadelphia. Dr. Dankmyer is one of the founding partners or Performance Spine & Sports Physicians, P.C. He is the Director of the electro diagnostic lab as well as the ultrasound lab. He specializes in electromyography (EMG) and nerve conduction studies (NCS), ultrasound-guided soft tissue and joint injections, Botox injections for spasticity, and non-surgical treatment for spine and musculoskeletal disorders. Dr. Dankmyer has four daughters and enjoys the outdoor activities of hunting, fly fishing, skiing, and biking.
Thomas R. Haley, D.O.
Dr. Haley completed his undergraduate degree at Lehigh University before attending the Philadelphia College of Osteopathic Medicine. At PCOM, Dr. Haley was selected into the Osteopathic Manipulative Medicine Fellowship program specializing in manual medicine. Upon graduation, he completed his internship at Mercy Suburban Hospital and his physical medicine and rehabilitation residency at Temple University Hospital where he also served as Chief Resident. Dr. Haley completed his Interventional Spine and Pain Management Fellowship at Performance Spine & Sports Physicians, P.C. and joined the practice as an attending physician in 2008. He is the current Division Chair of Physical Medicine and Rehabilitation at Mercy Suburban Hospital and is also on staff at Chestnut Hill Hospital and Einstein Medical Center Montgomery. Dedicated to advancing the treatment of patients in pain, Dr. Haley is the Director of Clinical Research at PSSP, has published in scientific journals, and has presented both nationally and internationally on pain management.
David L. Lichten, M.D.
(speaks fluent Spanish)
Dr. Lichten is fellowship trained, board-certified in both Physical Medicine & Rehabilitation and Pain Medicine. He completed his training at Thomas Jefferson University in Philadelphia. After residency, Dr. Lichten completed fellowship training in Interventional Pain Management and Minimally Invasive Spinal Procedures.
Dr. Lichten is a partner at Performance Spine & Sports Physicians and currently serves as the President of Pennsylvania Society of Interventional Pain Physicians-ASIPP. He has been nominated for Castle Connolly Top Doctor by his peers and recognized in Philadelphia magazine's annual Top Docs issues, 2020, 2021, 2022, 2023 and 2024. He has published in scientific journals, coauthored book chapters, and has collaborated in clinical research which has been published in numerous peer-reviewed journals. Dr. Lichten has presented nationally on topics related to interventional spinal procedures and pain management.
Dr. Lichten's personal interests can best be exemplified by his work as a fitness and nutrition consultant prior to and throughout his medical career. He is a sports enthusiast who played collegiate varsity tennis at the University at Albany where he graduated with magma cum laude with high honors. Dr. Lichten has developed a fluency in spanish in his worldly travels.
Kathryn Waverka, MPAS, PA-C
Kate Waverka returned to her hometown area after attending Marywood University for both her undergraduate and graduate studies in Physician Assistant studies. She is a board-certified Physician Assistant through the NCCPA. She joined Performance Spine and Sports Physicians in September 2019. Kate has always had a passion for medicine and believes it is important to establish a partnership between herself and her patients. Her primary interests include overall health and wellness promotion with a focus on preventative medicine, specifically in the study and treatment of osteoporosis. Outside of work, Kate enjoys spending time with her family, outdoor activities, and traveling.
Eric Dempsey, PA-C
Eric Dempsey is a board-certified Physician Assistant through the NCCPA. He attended Susquehanna University for his undergraduate and received his master's in physician assistant studies at Philadelphia College of Osteopathic Medicine. He is originally from rural central Pennsylvania. After completing school, he decided to remain in the Philadelphia area where he joined the Performance Spine and Sports Physicians team in October 2022. Overall, Eric focuses on the goal of treating patients with pain by utilizing lifestyle modifications, preventative medicine, interventional procedures, injections, and medications. His interest in physical rehabilitation, sports medicine, and pain management comes from his own personal experience of sports related injuries. A fun fact about him is that he has a black belt in Taekwondo. In Eric's spare time, he enjoys watching Philadelphia sporting events, playing soccer, golfing, going to the beach, attending concerts, and spending time with friends and family.