Physician Profiles


Gregory J. Chapis, M.D.

Gregory-ChapisDr. 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.

Christopher-DankmyerDr. 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.

Thomas-HaleyDr. 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)
David-LichtenDr. Lichten is a double board-certified specialist in physical medicine and rehabilitation and pain medicine. He completed his training at Thomas Jefferson University in Philadelphia where he received prestigious awards for "excellence in teaching" to medical students. After residency, Dr. Lichten completed a fellowship in interventional spine and pain management at Performance Spine & Sports Physicians, P.C. where he gained additional training in interventional spinal procedures and advanced pain management techniques. Dr. Lichten subsequently joined the practice as an attending physician in 2011 and now a partner within the practice.

Currently he serves on the board of directors as Vice President for Pennsylvania society of Interventional Pain Physicians-ASIPP. He has published in scientific journals, co-authored book chapters, and is currently participating in ongoing research in topics pertaining to this field. Dr. Lichten has presented nationally on topics related to interventional spinal procedures and pain management. His professional interests not only include spine, musculoskeletal, sports medicine and neuromodulation, but also inpatient rehabilitation medicine whereby he led a stroke and orthopedic service at HealthSouth Rehabilitation Hospital. 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.

Andrew S. Isleib, D.O.

Andrew-IsleibDr. Isleib attended Rowan University School of Osteopathic Medicine where he served as the first Director of the Chateau Gardot Music Medicine Program, graduating with a Certificate of Honor for Outstanding Achievement in Physical Medicine and Rehabilitation. He completed his Physical Medicine and Rehabilitation Residency at Temple University Hospital and Moss Rehab where he served as Chief Resident and Clinical Instructor. He also sat on the Temple University Hospital Ethics Committee and Staff Quality Council. In addition to the use of medications, therapy and interventional procedures, Dr. Isleib has an interest in incorporating osteopathic manipulation treatment into the care of his patients. In his free time, Dr. Isleib, a former touring musician, writes and records songs which have been featured in television shows, commercials and film.

Charlotte Solomon, PA-C

Charlotte-SolomonCharlotte M. Solomon, PA-C, is a certified Physician Assistant who has dually specialized in physical medicine and rehabilitation as well as pain management for the past 20 years. Charlotte has been a Physician Assistant for 29 years, and her experience includes time at University of Pennsylvania, Moss Rehabilitation Hospital and Lankenau Hospital. She received her undergraduate degree from Northeastern University and her graduate medical education at Hahnemann University. She has been selected for inclusion in the Cambridge Who’s Who Registry for Professional Women and National Association of Professional Women. Mrs. Solomon is a member of American Academy of Physician Assistant and Pennsylvania Society of Physician Assistant.

Kathryn Waverka, MPAS, PA-C

Kate WaverkaKate 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.

Performance Spine & Sports Physicians, P.C.

  • Pottstown Office - 1603 E. High St., Pottstown, PA 19464 Phone: 610-970-4700
  • East Norriton Office - 301 E. Germantown Pike, East Norriton, PA 19401 Phone: 610-275-7013 Fax: 610-275-7015

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