Staff

At Performance Rehabilitation, you can be confident that you are receiving quality care from an experienced and knowledgeable staff of licensed physical therapists. Our commitment to our patients extends beyond industry norms while being firmly rooted in academic knowledge and clinical training.

With your therapist holding either Doctorate or Master's degrees, as well as countless hours of advance coursework and certifications, Performance Rehabilitation takes pride and satisfaction in knowing we possess one of the finest treatments staffs in the Bronx and Westchester Counties.


Steven Srebnik, PT, MSPT, MS, CHT - President

Steven Srebnik, PT, MSPT, MS, CHT - President

Steven W. Srebnik, PT, MSPT, MS, CHT is the founder and owner of Performance Rehabilitation which opened in 1991. Prior to this endeavor, Mr. Srebnik received two Master of Science degrees with distinction from Boston University (Applied Anatomy & Physiology - 1984 & Physical Therapy - 1986). Subsequently, he started his career at Lenox Hill Hospital. Since then, Mr. Srebnik has been a teacher and devoted clinician. He was a graduate teaching fellow while at Boston University and has guest lectured at NYU. He also developed and taught his own continuing education course entitled Electrical Modalities for the Physical and Occupational Therapist. Presently, he is an adjunct clinical professor at New York Medical College. While Mr. Srebnik has a diverse and well-developed orthopedic background, his primary focus is directing the facility's hand and upper extremity rehabilitation department. He is credentialed as a certified hand therapist and a member of the APTA and ASHT.

Steve is an avid cyclist, skier and tennis player. He has an athlete's mentality and understands the physical demands of sport and athletics but enjoys getting people of all ages and ability levels back to doing the things they love to do.



Priyanka Jariwala, PT, MS - Clinical Director

Priyanka Jariwala, PT, MS - Clinical Director

Priyanka Jariwala graduated from Pravara College of Physiotherapy located in Loni, India in 2008. She subsequently continued her education at the University of Pittsburgh and obtained a post professional Master of Science in Health and Rehabilitation Sciences with a concentration in musculoskeletal physical therapy. She is also a member of the American PT Association.

Priyanka specializes in orthopedic and sports related injuries and is an expert in human kinesiology. Using an approach called Selective Functional Movement Analysis (SFMA), Priyanka is able discern subtle abnormalities in a individual's movement and target the tissues that are causing the abnormalities. Many times, movement abnormalities are caused by restrictions in the connective tissues and Priyanka frequently utilizes specialized instrumentation to effectively loosen these tissues. She also employs a wide variety of creative exercises that help restore mobility, strength and function. Priyanka is very motivating and while she develops a caring relationship with her patients, she will push her patients to maximize their potential.



Marie Geraghty

Marie Geraghty, PT, MS - Senior Physical Therapist

Marie Geraghty graduated from the University of Limerick in 2012 with her Physical Therapy degree and subsequently received a Master of Science degree in Preventive Cardiology from the National University of Ireland, Galway. The combination of her physical therapy degree and in-depth study of wellness, cardiovascular disease and disease prevention has allowed her to implement a holistic approach to her delivery of care. She has been active in research studying the effectiveness of rehabilitation protocols for patients undergoing total hip and total knee replacements. She also participated in research evaluating anterior cruciate ligament surgery outcomes.

Marie has a strong interest and depth of knowledge in sports physical therapy and is currently the team physical therapist for multiple teams playing in the Gaelic Athletic Association in the Bronx. We know our patients with sports injuries will benefit greatly from her care and expertise.



Jennifer Crivelli, PT, DPT - Physical Therapist

Jennifer Crivellii

Jennifer Crivelli is a graduate of SUNY Downstate Health Sciences University with a dual BS degree in Health Sciences and a Doctor of Physical Therapy (DPT) degree. Her capstone thesis focused on the lived experience of Parkinson’s disease for individuals dealing with the disease and their caregivers. Jennifer has always had a fascination with the human body and in particular the musculoskeletal system stemming from her experience as a certified Yoga instructor. She also practices Pilates for her own fitness and well being. She enjoys mixing aspects of Yoga and the Pilates method into her physical therapy treatment programs. In addition to her clinical experience, she has lectured on dysfunction of the sacroiliac joint and utilizing cognitive behavioral therapy to help manage post-op pain.



Margarita Kycyklli, PT (NYS license pending)

Margarita Kycyklli

Margarita Kycyklli is a Physical Therapist from Albania currently working with us a clinical assistant as she prepares to sit for the New York state licensing exam. She graduated from University FSHMT of Tirana in 2016 with a physical therapy degree and subsequently received an advanced Master of Science degree in physical therapy in 2018 at the same University.

Margarita’s clinical experience includes orthopedics, sports rehabilitation and neurological rehabilitation. She has taken advanced post-graduate coursework focusing on postural assessment and how postural abnormalities cause various types of orthopedic problems. Through the use of postural correction exercises and manual hands-on therapies, body balance is restored and subsequently function is improved.

Margarita currently assists our physical therapists and takes pride in helping to provide an excellent patient experience. She is a consummate professional with a friendly, caring personality. Driven by a passion to make you succeed and get you better, she will make sure to provide you with all the knowledge, tools and support you need for a successful outcome.

Margarita is fluent in Albanian, Italian and English and has a good working knowledge of Spanish. Margarita is an avid cyclist and when not in the clinic you will likely find her on her bike, playing her guitar or cooking up some delicious Albanian specialties.



Kristyn Pettit – Practice Administrator

Kristyn Pettit

Kristyn has been with Performance Rehabilitation since 2007. She started here working as one of our front desk administrators, grew into our eligibility and insurance manager and now is the administrator for the entire front office, managing all day-to-day activities of the practice working closely with the practice owner and our clinical director.

Over the years Kristyn has become an expert in the areas of office management in general but more specifically as it pertains to health care delivery and especially physical therapy. She knows everything you need to know about your insurance, regulations governing the delivery of physical therapy and understands what you are going through after you have suffered an injury that requires rehabilitation. Her team in the front office is service oriented and will do everything possible to untangle the complexities of the insurance industry and make your experience here is as pleasant as possible.

Over the last year Kristyn has developed a strong interest in becoming a health care provider herself and is currently enrolled in classes to pursue a degree in nursing.