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MEET THE TEAM

Mike Eisenhart
PT, Senior Partner

Mike Eisenhart is one of Pro-Activity‘s founders, leading the firm from shortly after start-up through most of its 20 year history. Formally trained as a physical therapist, Mike is perhaps most well known for his work outside of the clinical environment, often embedded with employers, to improve the health and performance of their populations. Mike is a sought after speaker and consultant and has won awards in the categories of innovation and societal impact for the work he has led at Pro-Activity. He is usually on the move and always working on something, which has earned him the titles: Coach, Data Geek, Ultra Endurance Athlete, Chief Executive Ox, Thought Leader, Mad Scientist and Dad....all of which he is immensely proud.

Dr. Amy E. Weller
PT, DPT, Senior Partner

Amy has been providing clinical and consulting Physical Therapy services for 24 years. She holds an Advanced Clinical Doctorate from UMDNJ/Rutgers, a Graduate Certificate in Women’s Health Physical Therapy and spent 10 years as a Board Certified Geriatric Clinical Specialist by the American Board of Physical Therapy Specialties - one of only 42 in NJ and less than 1500 nationally. Amy’s personal mission is to educate healthcare consumers on the impact of lifestyle management as it pertains to muscle imbalances, pain and disability associated with musculoskeletal impairments. She has a special interest in the prevention of chronic disease and is a Certified Diabetes Educator. Amy finds that a deeper understanding of her patients’ needs comes from her personal experience with endurance running and swimming. A life-long runner, she has completed 8 half marathons and a half-iron aquathlon.

Justin Bagley
PT, DPT, Partner

Justin Bagley, PT, DPT is a partner of Pro-Activity Associates a prevention and population health focused practice located in Lebanon, NJ. He received his physical therapy degree from Arcadia University. Dr. Bagley has spent much of his career focused on working with employers to improve health and quality of life of their workforce populations while reducing overall injury risk and reoccurrence. Over the last decade, Justin has been integral in the development of applied prevention and health promotion best practice including the development of Pro-Activity’s 5 ELEMENTS (MOVE, FUEL, RECOVER, ENDURE, CONNECT), which have been adopted as pillars in the APHPT. In addition to working in the employer setting, he maintains an outpatient clinic and serves on the council of directors of the APTA of New Jersey.

Eric Eisenhart
CPT, PES, Managing Partner

Eric Eisenhart is a partner with Pro-Activity and serves the team as operational lead. An alumni of Cornell University, in his tenure with Pro-Activity he has led business development and strategic brand positioning, having launched Pro-Activity's movement and fitness services, race and event management services, and most recently the Main Street Marathon brand.  Eric holds certifications from the National Academy of Sports Medicine and Precision Nutrition. Having been involved in athletics as a competitor and coach all his life, he not only believes, but acts upon the tenants that health and personal well-being are essential building blocks for optimal performance in work, play, and life.  Eric resides in Clinton Twp., NJ with his wife Amy and three children.

Nicholas Pfaff
CPT, CES, Partner

Nick Pfaff leads Pro-Activity's resident data team utilizing his background from Cornell Engineering to harness data & analytics that drives Pro-Activity's results focused services.  Nick Joined the Pro-Activity Team in  2005, became a partner in  2013, and has been involved in service delivery and management throughout all of Pro-Activity's services.  A former Division I College wrestler and sprint football player, Nick also utilizes his sports performance background as a trainer, corrective exercise specialist, and corporate injury & disease prevention consultant to keep a clients in the game and performing at their best.  Hobbies include trail running followed by a pint from a local craft brewery.

Chris Gahagan 
CSCS, PES, CSAC, Strength & Conditioning Coach 

Chris holds a B.S in Exercise science and is a Certified Strength and Conditioning Specialist under the National Strength and Conditioning Association as well as a Certified Speed and Agility Coach under the National Sports Performance.  Having worked with athletes in the Hunterdon county area since 2012 he has worked with multiple county, sectional and group championship teams, as well as individual state champions.  He believes in a progressive and periodized approach to training to produce the best long-term athletic development.  In his free time he enjoys playing soccer, training olympic weightlifting, and is an avid New York Sports Fan.

Dr. Dana Edwards
PT, DPT, OCS

Dana Edwards began her journey into the world of PT after a love for human anatomy. She earned her BS in Health Sciences at James Madison University, followed by her clinical doctoral degree in Physical Therapy from the University of Medicine and Dentistry of NJ. Dana became fascinated with the treatment of scoliosis and further developed her understanding by becoming a Schroth certified (C1 and C2) therapist by the Barcelona Scoliosis Physiotherapy School.  She earned her Orthopedic Clinical Specialist distinction before diving into the world of prevention, completing a certification in Applied Prevention & Health Promotion. Dana has worked in a variety of settings & has mentored many students as a clinical instructor. She is active within her professional association, the APTA, having served as NJ delegate for four terms. When she's not working, Dana enjoys time with friends/family, cooking, outdoor activities, and playing ice hockey.

Diego Austin
MS, Coach

Diego has a background in Corrective Exercise as well as Movement Pattern Development.  Diego is originally from San Diego, CA but made his way out to Holland Township, NJ after completing undergraduate and graduate programs in Sports Medicine and Exercise and Sports Science at Merrimack College in North Andover, MA. He uses his experience as a Division II athlete, personal trainer, and corrective exercise specialist to identify and correct compensations in movement and develop proper movement habits. 

Ali Hartman
PT, DPT, CF-L1
Managing Agent Pro-Activity NC

Clinically trained as a Doctor of Physical Therapy, Ali has a deep appreciation for the resilience of the human body and the value of caring for it in all capacities. Specializing in Prevention & Health Promotion, performance, and the management of the industrial and fitness athlete alike, Ali most enjoys helping others achieve their best, in whatever capacity that means to them. In her spare time, she is an avid CrossFitter, runner, equestrian, and adventure seeker.

Pat McSweeney
PT, DPT, Cert-APHPT

As a clinically trained Doctor of Physical Therapy, Pat has a huge desire to help people realize in themselves the resilience and strength of the human body. In his free time, he loves to stay active in Triathlon, Crossfit and running. Pat’s passion for keeping people healthy has continued throughout his career and ultimately has led him to complete a Residency program with Pro-Activity. Following the completion of his Residency, Pat plans to open Pro-Activity Ohio and looks forward to keeping his home state healthy and happy.

Aaron Perez
PT, DPT
Managing Agent Pro-Activity Chicago

Aaron comes to Pro-Activity by way of the Midwest. Born and raised in Chicago, Aaron then graduated as a Doctor of Physical Therapy in 2015 from Saint Louis University. He has pursued a passion for fitness and health receiving advanced training and certifications in personal training, sport physical therapy, and prevention and health promotion. When his nose is not in the books, he can be found working out and probably dancing and rapping to his favorite hip hop songs. Upon completion of his residency experience at Pro-Activity, Aaron plans to move back home and launch Pro-Activity Chicago. 

Mark Ciolek
PT, DPT, Cert-APHPT

Dr. Mark Ciolek was born and raised in Ohio, where he received a degree in Exercise Science Education and Doctorate in Physical Therapy from The Ohio State University. Mark is driven by an interest in connecting individuals with the capacity of the human body to thrive. With advanced training in prevention & health promotion, orthopedics, and sports therapy, Mark loves to bring his clients active strategies for health. He resides in Brooklyn, New York with his wife and dog. He can be found experimenting with coffee & food, running, and playing the guitar!