Providing Quality Care in a Welcoming and Professional Environment

About Us

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Our Services

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New Patients

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Now Offering Shockwave Therapy


Shockwave therapy is an innovative treatment designed to accelerate healing, reduce pain, and improve mobility. By delivering high-energy acoustic waves to targeted tissues, this therapy stimulates natural biological processes such as increased blood flow, collagen production, and cellular regeneration.

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Welcome To ProActive Physical Therapy & Sports Rehabilitation

Our History

Your Physical Therapy and Sports Rehabilitation in Valhalla, NY
For over 20 years, our privately owned family practice has been dedicated to providing exceptional and personalized Physical Therapy to our friends in the community.

Our Philosophy

At ProActive Physical Therapy & Sports Rehabilitation, we focus on hands on, manual therapy combined with therapeutic exercise and education, to provide a comprehensive treatment plan. We learn how your injury or condition have impacted your daily life, and determine how best to return your joints and soft tissue to optimal function.

Our Mission

Our mission is to be in service to our community, utilizing our advanced training and years of clinical experience, to return each individual to their optimal level of function.

Manual Therapy

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Graston Technique

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LSVT Big

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Vestibular Rehab

We properly identify and diagnose inner ear pathologies. Various treatment strategies are employed to eliminate dizziness, nausea, and vomiting caused by vertigo and other inner ear pathologies.

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Blood Flow Restriction (BFR)

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Shockwave Therapy

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Welcoming New Patients

No matter whether your condition was caused by a sport, work accident or otherwise, we welcome the chance to serve you.

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Meet The Team

Demetrios Farmakopoulos

MSPT, OCS

MSPT, OCS Demetrios Farmakopoulos, founder of ProActive Physical Therapy, brings nearly 30 years of experience and a personal commitment to patient ca...

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Demetrios Farmakopoulos

MSPT, OCS

MSPT, OCS Demetrios Farmakopoulos, founder of ProActive Physical Therapy, brings nearly 30 years of experience and a personal commitment to patient care. Holding a Master’s degree in Physical Therapy from Ithaca College and board certification as an Orthopaedic Clinical Specialist (American Physical Therapy Association), Demetrios has honed his assessment and treatment skills into a seasoned clinician. His extensive experience in private practice allows him to effectively treat a broad spectrum of orthopaedic and neurological needs. As a former competitive athlete in sports ranging from basketball and rugby to triathlons and mountain biking, Demetrios understands the importance of peak performance and focuses his sports rehabilitation on improving on-field function. He prioritizes hands-on manual therapy, believing it fosters a genuine connection with patients and ensures the highest quality care. In his free time, Demetri can be found enjoying a variety of outdoor pursuits, including mountain biking, hiking with his dogs, and snowboarding.

Tunde Guttengeber

MSPT

Tunde graduated from Mercy College with a B.S. in Health Science in 2001 and with a Master of Physical Therapy degree in 2004. She is experienced prim...

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Tunde Guttengeber

MSPT

Tunde graduated from Mercy College with a B.S. in Health Science in 2001 and with a Master of Physical Therapy degree in 2004. She is experienced primarily in outpatient orthopedics treating surgical and non-surgical conditions. She has also worked in long-term, sub-acute and inpatient rehabilitation settings for 10 years.

Her interests include treatment of various injuries including shoulder problems, joint replacements, sports and work injuries, as well as chronic pain and the promotion of overall health and wellness. She has completed many continuing education courses such as Kinesio Taping, shoulder rehab, spine rehab, yoga and Pilates.

In her free time she likes to read, work out, and she enjoys cooking and baking as a form of relaxation.

Kaelyn Ragonese

DPT

Kaelyn received her Doctorate of Physical Therapy from Franklin Pierce University and Bachelors in Exercise Science from Hofstra University. She holds...

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Kaelyn Ragonese

DPT

Kaelyn received her Doctorate of Physical Therapy from Franklin Pierce University and Bachelors in Exercise Science from Hofstra University. She holds certifications in LSVT Big, Pain Reprocessing Therapy,Schroth Method for Scoliosis, and Graston Technique. Kaelyn believes in blending manual therapy with an evidence-based approach to exercise in order to yield the best results. She is passionate about educating her patients on their condition and different lifestyle adjustments in order to promote independence on their journey towards an optimal level of function. In her free time, she enjoys playing intramural sports, spending time with her friends and family, and traveling to new places.

Matthew Maraia

DPT

Matthew, a native of Thornwood, received his BA in Biology/Pre-Med from Boston College in 2017 and his Doctorate of Physical Therapy from Stony Brook ...

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Matthew Maraia

DPT

Matthew, a native of Thornwood, received his BA in Biology/Pre-Med from Boston College in 2017 and his Doctorate of Physical Therapy from Stony Brook University in 2021. Matthew’s treatment philosophy takes a holistic approach, recognizing that the area of pain is not always the root cause. He uses a combination of hands-on manual therapy and targeted therapeutic exercises to not only build strength and stimulate muscle growth but also to cultivate resilience in his patients. This philosophy is reflected in his personal life as well, where he enjoys an active lifestyle that includes weight lifting and hiking, spending time with family and friends.

We greatly value the kind words shared by our patients. Their positive experiences reflect our commitment to excellent care. We appreciate their trust and are dedicated to continuing to provide high-quality services to everyone we serve.

Just got done with 18 sessions to restore my shoulder post-surgery. Can't say enough about what a great experience Proactive was. Great facility, top notch equipment, immaculately clean, two friendly dogs roaming the room to keep people at ease, and best of all, incredible therapists that spend oodles of time with their patients. This is key as they take a hands-on approach that really lets them understand what their patients need, how they're progressing, and how to evolve and adapt the therapy. I hope I don't need PT any more, but if I do, I know where I'm going. It's not even a question.

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Kevin S.

This place is perfect! Demitri and his team are top notch pros. I would highly recommend this place should you ever need PT.

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Dave T.

Proactive PT is amazing!! Truly the best out there! Everyone that works there is very kind and knowledgeable. All the PT’s put their patients first with excellent one-on-one care. I injured my back, and Matt truly helped me so much! The rehab program he had me do was incredible with very detailed exercises. Highly recommend!

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Samantha B.

Proactive is awesome. Staff is great, and very hands on. Special shout out to Matt for helping me increase my mobility and strength after my injury

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Rob T.

I have been going to Proactive Physical Therapy since 2022 and have had the privilege of having an incredible group of professionals and people help me in my recovery. From the front office to the clinic floor, everyone is a pleasure to be around and has made my time here worthwhile.

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Ruben L.

Pro Active is one of the best physical therapists out there. I have been to many other prior but the professionalism and cohesiveness of the staff, knowledge and care they give to all their patients is outstanding. Highly recommend.

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Gina H.

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