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Physician Assistants

Stefanie Proviano, PA

Stefanie Proviano is a certified physician assistant with a passion for orthopaedics. She received her undergraduate degree in chemistry from the
University of Pittsburgh.

Following her time as an undergraduate she pursued her goal of becoming a physician assistant and earned her Masters of Physician Assistant studies from Chatham University in Pittsburgh, Pennsylvania. During her time at Chatham, Stefanie was able to participate in an orthopaedic surgery rotation where she gained experience in each subspecialty within orthopaedics. Today, Stefanie works closely with Dr. Kevin Freedman to provide quality patient care for many different orthopaedic pathologies.

Stefanie has experience in diagnosing and treating a variety of Orthopaedic conditions, including fractures, sprains and strains, and ligament and cartilage tears. She has experience with casting, providing injections, and assisting in surgery.

Karissa Stevens, PA-C

Karissa is a Board Certified Physician Assistant and graduated from the Physician Assistant program at Arcadia University. She received her Bachelor of Science degree in Biology from Simmons College in Boston, Massachusetts. Prior to becoming a Physician Assistant, Karissa has had many years of service in the hospitality industry and was a volunteer at Brigham and Women’s Hospital in Boston, Massachusetts. Karissa works with Dr. Alexander Vaccaro specializing in orthopaedic surgery of the spine. Karissa sees patients in the Center City Philadelphia office.

Kristin M. Camm, PA-C

Kristin graduated from Philadelphia University's Physician Assistant Program. She received a Master of Arts in Education degree from Montclair State University and a Bachelor of Science degree in Athletic Training from West Chester University. Kristin previously worked as a physician assistant at Jeanes Hospital in Philadelphia practicing inpatient medicine. Prior to becoming a physician assistant, she worked as an athletic trainer at Montclair State University and Richard Stockton College. Kristin currently works with Dr. John Abraham, Chief of Orthopaedic Oncology at Rothman.

Brian Campenella PA-C

Brian is a Certified Physician Assistant and graduated from the Hahnemann Physician Assistant Program at Drexel University. Prior to joining the Rothman Institute Brian worked at Orthopedic Reconstruction Specialists in Voorhees, NJ for 5 years. He has also worked at Trenton Orthopedic Group. Before becoming a Physician Assistant Brian worked as a certified athletic trainer at Framingham State College, Framingham, Massachusetts and Woodrow Wilson High School, Camden, New Jersey. He now works with Dr. Michael Harrer and sees patients in the Washington Township office.

Steven DiRocco, PA-C, PTA

Steven is a Board Certified Physician Assistant who graduated from the Hahnemann Physician Assistant Program at Drexel University. Steven also worked at NovaCare as a therapist before physician assistant school at Hahnemann. After graduating Steven began work assisting 10 physicians at Premier Orthopaedics. He also assisted in surgery and independently ran an orthopaedic urgent care center in Media, PA. Steven treats a broad spectrum of musculoskeletal issues including sports related injuries, degenerative joint disease, sprains/strains and much more. Steven works closely with Dr. Peter Sharkey and is also a part of the total joint team.

Diego Fiorentino, PA-C

Diego is a Certified Physician Assistant who graduated from the Hahnemann Physician Assistant Program at Drexel University. He also received his Bachelor of Science in Biology from the Richard Stockton College of New Jersey. Diego worked as a sports medicine physician assistant in Southern New Jersey prior to joining the Rothman Institute. Diego works closely with Dr. Matthew Pepe specializing in surgical sports medicine.

John W. Fleischman, PA-C, MPT, ATC

John graduated from Philadelphia College of Osteopathic Medicine's Physician Assistant Program. He received his Bachelor of Science degree and Master's in Physical Therapy degree at the University of Scranton and completed his Athletic Training certification at Rowan University. Prior to becoming a physician assistant, he worked as a physical therapist at Orthopaedic/Sports Medicine Physical Therapy facilities and volunteered as an athletic trainer at several South Jersey High Schools and tournaments. John currently works with Dr. John Salvo, Jr. specializing in surgical and non-surgical sports medicine injuries.

Jason Gajdzis, PA-C

Jason is a Certified Physician Assistant and graduated from the UMDNJ Physician Assistant Program at Seton Hall University. He also received a Bachelor of Science degree from Seton Hall University in Biology. Jason worked at various orthopedic practices in Atlantic County before joining the Rothman Institute. He works with Dr. Fabio Orozco specializing in joint care.

Thomas Geary, PA-C

Thomas is a Certified Physician Assistant and graduated from the Hahnemann Physician Assistant Program at Drexel University. He also received a Bachelor of Arts in Health and Exercise Science as well as a Master of Arts in Education from Rowan University. Prior to becoming a physician assistant, Thomas worked as a certified athletic trainer in Gloucester and Camden counties. Thomas works work with Dr. Bradford Tucker specializing in surgical sports medicine.

David Katz, PA-C

David is a Certified Physician Assistant and graduated from the Arcadia University Physician Assistant Program. He also received a Bachelor of Science Degree in Biology from University of Delaware. Prior to joining the Rothman Institute, David worked in Haddonfield, NJ for two years with a general orthopedic surgery practice. David works closely with orthopedic spine surgeon Dr. Zachary Post. He also sees patients in the Egg Harbor Township, NJ office.

Seth Mahan, PA-C

Seth graduated from the Philadelphia University Physician Assistant program. He received Bachelor of Science degrees in Athletic Training and Health/Physical Education from West Chester University. Prior to joining the Rothman Institute Seth worked for a general orthopaedic practice in Wilmington, DE. Seth sees patients at the Bucks County Specialty Hospital in Bensalem, PA.

Alexis V. Pino, PA-C, MS

Alexis V. Pino, PA-C, M.S.: Alexis is a board certified Physician Assistant and graduated from Philadelphia University's Physician Assistant Program where she received her Masters of Science degree in Physician Assistant Studies. She received her Bachelor of Arts degree from Rowan University in Communications/Journalism. Prior to becoming a physician assistant, Alexis worked at the Rothman Institute in various clinical and clerical capacities. Alexis works closely with Dr. Christopher Kepler specializing in orthopedic surgery of the spine and sees patients in the Media and Washington Township offices.

Natisha Ross, PA-C

Natisha is a Certified Physician Assistant and graduated from the Hahnemann Physician Assistant Program at Drexel University. Prior to becoming a Physician Assistant, Natisha worked at the Rothman Institute in various clinical and clerical capacities. Natisha works with Dr. Todd Albert specializing in orthopedic surgery of the spine and sees patients in the Center City Philadelphia office.

Kevin Shelby, PA-C

Kevin is a Certified Physician Assistant who graduated from the Hahnemann Physician Assistant Program at Drexel University. He graduated with a Bachelor of Science in Exercise Science with an emphasis in Sports Medicine from Florida State University. Prior to becoming a physician assistant, Kevin worked as a certified athletic trainer at the collegiate level. Kevin joined the Rothman Institute and works with Dr. David Greg Anderson who specializes in orthopaedic spine surgery. Kevin sees patients in the Northeast Philadelphia, and Bensalem.

Colleen Thornton, CRNP, ONP-C

Colleen is a nurse practitioner who graduated from the Adult Nurse Practitioner program at Johns Hopkins University. She also received a biology degree from Loyola University Maryland. Prior to joining the Rothman Institute, Colleen worked for years in the Division of Spine Surgery at Johns Hopkins Hospital. She is also a recipient of a Certified Orthopaedic Nurse Practitioner certification. Colleen works with Dr. Jeffrey Rihn who specializes in orthopaedic spine surgery. She see patients at Rothman Institute's King of Prussia, Media, and Center City Philadelphia offices.

Kate Worthington, PA-C

Kate is a certified physician assistant who graduated from Seton Hill University. She received a Bachelor's of Science degree in Psychology from the University of Maryland Baltimore County while playing NCAA Division 1 Lacrosse. Before practicing at the Rothman Institute, Kate worked in Bariatrics. She works with Dr. Kris Radcliff specializing in orthopaedic surgery of the spine, and sees patients in the Egg Harbor Township, Washington Township, and Manahawkin offices.

Conor Luskin, PA-C

Conor is a Certified Physician Assistant. He graduated from the Philadelphia College ofOsteopathic Medicine Physician Assistant program. Conor also received a Bachelor of Science inRehabilitation Science from the University of Pittsburgh. Prior to coming to The Rothman Institutehe worked as a physician assistant in an emergency department in Pennsylvania.
Conor works closely with Dr. Luke Austin in both the Egg Harbor Township office and the Washington Township office.