Parkinson’s Physical Therapy in Speonk, NY
Whether you are the one who was diagnosed or the one doing the reading on their behalf, start here. Our owner is the head coach of Rock Steady Boxing Hampton Bays, and Parkinson’s care is something this practice has built on purpose.
The movement is still there. The brain has stopped sizing it correctly.
As dopamine-producing neurons are lost, the part of the system that decides how big and how fast a movement should be starts under-scaling everything. You still know how to walk, reach and turn. The brain simply issues a smaller version than the one you intended, and tells you it was normal size. That is what a shuffling step, a fading arm swing, cramped handwriting and a quiet voice have in common, and it is why family often notices before the person does.
This matters because it tells you what treatment has to do. Not gentle range of motion. Deliberately oversized, high-effort, fast movement practised over and over, so the system relearns what full amplitude feels like and you get an internal reference that is bigger than the disease is willing to give you. Then the same principle applied to balance: reactions trained under real challenge, because the falls in Parkinson’s come from turning, reaching and stopping suddenly, not from walking in a straight line.
Medication is doing important work and nothing here competes with it. But high-effort exercise has become a standard, expected part of Parkinson’s care alongside it, and it is the part that only happens if somebody builds it, coaches it, and keeps the intensity honest week after week.
What we look for, from newly diagnosed to well established.
If you are reading this for a parent, these are the things worth mentioning to them and to us.
Tremor at rest
A shake in a hand, arm, leg or jaw that shows up when the limb is still and settles when it moves.
Rigidity and slowness
Stiffness that resists quick movement, and bradykinesia, where everything simply takes longer than it used to.
Small, shuffling steps
Reduced stride length and a fading arm swing, often with a forward lean that makes stopping hard.
Freezing and trouble turning
Feet that stick in doorways or mid-turn, which is one of the highest fall-risk moments of the day.
Handwriting and voice shrinking
Cramped, smaller writing and a quieter voice, both symptoms of the same amplitude problem.
Getting up and getting going
Difficulty rising from a low chair, rolling in bed, or starting the first few steps after standing.
Amplitude, intensity and boxing, coached by people who trained for this.
Seth Greiner, PT, MSPT, is the head coach of Rock Steady Boxing Hampton Bays, the noncontact boxing program for people with Parkinson’s, and he certified at the original Rock Steady affiliate in Indianapolis. He has spent three years and more working with Stony Brook Southampton Hospital and has put his continuing education hours specifically into Parkinson’s management. That is a real and slightly unusual concentration of Parkinson’s experience for a private practice this size, and it is the reason this page exists.
In the clinic, treatment is big-amplitude gait training that pushes stride length and arm swing, balance and reaction work under genuine challenge, power and speed training rather than slow strengthening, dual-task practice for the moments that actually cause falls, and functional drills for beds, chairs, stairs and turns. Alongside it, Rock Steady Boxing gives you the intensity, the footwork, the voice work and something a Tuesday afternoon exercise sheet never will: a room full of people with the same diagnosis, working hard together. Classes run Monday and Wednesday, there is a Zoom option, and the first class is free.
No referral needed in New York for up to 30 days or 10 visits. In network with Medicare and Medicare Advantage, out of network with most other plans, and we submit claims on your behalf. Same-week appointments are usually available at both locations.
Questions from patients and from their families.
01 / What is Rock Steady Boxing, and does my relative have to be able to box?
02 / Do we need a referral from the neurologist, and how does insurance work?
03 / Should we wait until symptoms are worse before starting?
04 / Can physical therapy cure Parkinson’s or replace medication?
What our patients say.
"The physical therapy at Greiner is excellent. The staff is dedicated, knowledgeable and caring. My husband has been very pleased with all aspects of the PT at Greiner."Marianne L. · Google review
Schedule Your Appointment
No referral needed in New York. Same-week appointments available at both locations.
Your first visit is a full one-on-one evaluation with a licensed physical therapist: come in, tell us everything, and leave with a plan.
You’re all set.
We’ll reach out within one business day to confirm your appointment. If you need to speak with us sooner, call us directly.