With Quantum you matter!
New York Physical Therapist and Chiropractor
Since 2012, we’ve helped thousands of patients return to pain-free living with our personalized, hands-on approach to treatment.
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Quantum Physical Therapy & Chiropractic Care is an outpatient rehabilitation facility that caters to patients with Musculoskeletal injuries due to automobile accidents, slip and falls, workers compensation trauma and all other injuries. We believe in a hands-on, one-on-one personalized approach to therapy. Our mission is to deliver highly skilled and effective rehabilitative services to all of our patients. Our staff at Quantum Physical Therapy & Chiropractic Care strive to consistently provide excellent customer service along with expert clinical care. We value our patients and are proud that many of our patients recommend us to their family and friends. We form long-term relationships with our patients to provide the best of care and a lifetime of good health.
Our Team
Our Dedicated Doctors
Dr. Jason Birnhak
Chiropractor
Johanna Castellano
Physical Therapist
Get Well Sooner!
Physical Medicine & Rehabilitation
Physical Therapy
Chiropractic
Interventional pain management
Orthopedics
Acupuncture
Massage Therapy
Electro Diagnostic Testing
Computarized ROM & Muscle Testing
Physiatrist (PM&R) and Neurologists
Satisfied Patients
I’ve been coming to Quantum Therapy for about two years and I must say everyone feels like family. Kenya and Marylene are always so welcoming and kind. Dr Manadan and Dr. O are so attentive. I recommended this place to so many of my friends. I look forward to coming because I leave feeling physically better and mentally. They’re awesome people please visit.
A PHENOMENAL PLACE!! I really love and always look forward to coming here for my treatment. I am always met with a smile and treated with care and compassion. Not only that, but the PT STAFF/Acupuncturist/Chiropractor are brilliant. From the receptionist all the way to the doctors you know they all have your best interest and healing at heart.
Very nice clean friendly atmosphere. And they know what they’re doing. I always get a hello when I step in.
Excellent service, very friendly, caring, helpful and professional staff. Always receive wonderful and warm experience everytime. HIGHLY recommend.
Latest News & Events
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- Chiropractic Care
- Physical Theraphy

Shoulder pain can make even the simplest tasks feel impossible. Chiropractic care and physical therapy for shoulder injuries are two proven approaches that, when combined, may offer more complete recovery than either method alone. Quantum Physical Therapy & Chiropractic Care, PLLC, a trusted chiropractor in New York, explains why these...

In this blog post, you’ll learn about common rotator cuff injuries, the risks of delaying treatment, and how physical therapy can help patients recover from accident-related shoulder trauma through non-surgical rehabilitation. Contact Quantum Physical Therapy & Chiropractic Care, PLLC, to schedule physical therapy after a car accident in New York....

You walk away from a car accident feeling shaken but relatively okay, but then, a day or two later, your shoulder starts to ache. The force of a collision puts tremendous strain on your upper body, even in a low-speed crash. Since shoulder pain after a car accident can quietly...

After an injury, your body rarely moves the same way it did before. Even after the pain fades, hidden problems can linger. One of the most common is muscle imbalance, in which certain muscles become weak as your body compensates for an injury. Over time, this “normal” way of movement...