Centereach Office

141 Mark Tree Road
Centereach, NY 11720
Phone: 631-467-4235
Fax: 631-467-2655

Mastic Office

1636 Montauk Hwy,
Mastic, NY 11950
Phone: 631-399-0007
Fax: 631-399-2992

Mastic Team

1636 Montauk Hwy, Mastic, NY 11950

All our Therapists are New York State licensed.

Meet the Mastic Team

Justin J. Bonacci

PT, DPT, CFMT, ATC, CGFI, Principal

Dr. Bonacci received his BA from SUNY Stony Brook in ’94. In ’95 he received his National Certification as an Athletic Trainer and served the local High school community athletes. In ’97, Dr. Bonacci graduated Summa Cum Laude from the SUNY Stony Brook Physical Therapy program. Shortly after graduation, Justin joined the Spagnoli Physical Therapy “family”. Striving for further education, in 2001, Justin received his CFMT functional manual therapy certification with Honors, with the Institute of Physical Art. In 2003, he opened the Mastic Office of Spagnoli Physical Therapy in partnership with Robert and Peter Spagnoli. Over the years, Dr. Bonacci was a teacher’s assistant for the nationally known courses Cervical Thoracic Integration and Lumbo-Pelvic Integration through IMTS. He received his Doctorate in Physical Therapy from SUNY Stony Brook in 2005. Over the years, Dr. Bonacci’s desire for continued growth for knowledge has guided him in taking numerous continuing education courses focusing on the evaluation and treatment of the cervical, thoracic and lumbo-sacral spine, as well as shoulder, knee/hip dysfunction and injury. Justin believes that continued personal and educational growth helps put more “tools in the tool box” which he can use to help treat his patients and achieve successful outcomes. His passion for golf and the biomechanics of the golf swing directed Justin in receiving his certification as a Golf Fitness Instructor with the Titleist Performance Institute. When not helping patients, Justin enjoys spending time with his wife, daughter and son.

Erika Votruba


Erika graduated from Stony Brook University in 2005 with Doctorate in
Physical Therapy and has been practicing in our Mastic location since.
Erika has strong interest in manual therapy intervention and has completed a number of continuing education courses in orthopedics and osteopathic manual therapy. Her continuing education courses include “Lumbopelvic Integration” and “Cervical Thoracic Integration” through Integrative Manual Therapy Solutions, “Functional Orthopedics I” through the Institute of Physical Art, “Integrated Neuromuscular Re-Education Muscle Energy Therapy and Positional Release”, “Functional Strength Training for the Aging Spine” and “Rotator Cuff Syndrome: From Impingement to Post-Operative Rehab” and “Assessment and Treatment Strategies for Shoulder Injuries”.

Kerry Saladino


Kerry earned her Masters Degree in Physical Therapy at Touro College in 1999. She is trained in manual therapy from the Institute of Physical Art. She is dedicated in taking continuing education to advance her manual therapy skills and patient assessments with her recent work in Neurokinetic Therapy (NKT) and Selective Functional Movement Assessment (SFMA).

Mark Passik


Mark earned his Associates of Applied Science degree as a Physical Therapist Assistant  from Suffolk Community College in 2021. He completed his clinical affiliations in acute care as well as inpatient and outpatient orthopedics. Mark completed his final clinical rotation under the supervision of Patrick Keller at our Centereach location and has been a full time employee ever since. Outside the office Mark loves leading an active lifestyle and enjoying the outdoors.

Michele Moore

Office Manager

Michele started off as an employee in our Sag Harbor office in September, 2001. Starting out as an aide, she has since become office manager and assisted in the clerical duties of our former office located in Montauk. In an effort to be closer to home in 2009, Michele joined our Mastic office as manager. She is responsible for overseeing the front desk, communicating with insurance companies to verify benefits and to have claims processed, and is the go-to person for patients, should a question arise regarding their insurance coverage. When not at work, Michele enjoys spending time with her children.