Redefine Fitness

Redefine Fitness We are a medical fitness company that combines fitness, nutrition and accountability to help unlock a better you.

Book a consult: https://linktr.ee/redefinefitnessli Redefine Fitness was created as a gateway to help change what is known about how we define being fit. My goal is to help provide my clients with fact driven results that fit their own personal needs. It's time to refute all of those outlandish fitness myths and redefine what it means to be fit.

Happy Labor Day from the Redefine team.📍 Mount Sinai & Stony Brook · 631-250-5622
09/07/2026

Happy Labor Day from the Redefine team.

📍 Mount Sinai & Stony Brook · 631-250-5622

Thank you so much
09/06/2026

Thank you so much

That is the gap between medicine and fitness that most people never knew existed. And it is exactly the space Redefine w...
09/03/2026

That is the gap between medicine and fitness that most people never knew existed. And it is exactly the space Redefine was built to fill.

📍 Mount Sinai & Stony Brook · 631-250-5622

09/02/2026

Not for everyone. Intentionally.

Redefine is not an open gym. Not a group class. Not a place to figure it out on your own.

It is for the person who wants a program built specifically for them, with a team that actually gives them their life back.

📍 Mount Sinai & Stony Brook · 631-250-5622

We are medical fitness.Long Island didn't have it, so we built it.Not a gym — gyms are for people who already know what ...
09/01/2026

We are medical fitness.

Long Island didn't have it, so we built it.

Not a gym — gyms are for people who already know what they're doing. Not therapy — therapy discharges you. We're the bridge in between: medical-grade assessment, clinical standards, and training built off YOUR history.

Medicine diagnoses you, then hands you a discharge sheet that says "rest." Fitness pushes you, but gives you no starting point. Billions spent on both — and people keep getting sicker. Nobody owns the middle.

We are that middle. We built New York State's only DOL-approved fitness apprenticeship, put a board-certified Nurse Practitioner behind our programming, and documented 100+ conditions — because if a category doesn't exist, you don't get to half-build it.

Think medical fitness isn't a real thing? Tell us why. We'll answer every single comment.

Full definition: https://redefine-fitness.com/conditions/what-medical-fitness-actually-is/

— Redefine Fitness | Mount Sinai & Stony Brook, NY

We are currently hiring Fitness Specialists at our Mount Sinai location. Here is what the job actually pays, before you ...
08/31/2026

We are currently hiring Fitness Specialists at our Mount Sinai location. Here is what the job actually pays, before you apply.

Every number is published before you apply. Link in bio.

08/28/2026

Shelbi has explained protein more times than she can count. She is not stopping.

📍 Mount Sinai & Stony Brook · 631-250-5622

08/26/2026

The scale is not showing you the full picture.

Amanda Teeple, our nurse practitioner and clinical advisor, breaks down what is actually happening to your body on a GLP-1 and why it matters.

Comment LEARN MORE and we will reach out.

📍 Mount Sinai & Stony Brook · 631-250-5622

This is what 1-on-1 actually looks like.Your specialist. Your program. Your pace.No one else in the room telling you wha...
08/25/2026

This is what 1-on-1 actually looks like.

Your specialist. Your program. Your pace.

No one else in the room telling you what you should look like.

📍 Mount Sinai & Stony Brook · 631-250-5622

These are the real reasons people walk through our door.Not a diagnosis. Not a number on a scale. Something they want to...
08/24/2026

These are the real reasons people walk through our door.

Not a diagnosis. Not a number on a scale. Something they want to get back to, or something they refuse to lose.

If one of these sounds like you, you are exactly who we built this for.

📍 Mount Sinai & Stony Brook · 631-250-5622

Address

1113 North Country Road
Stony Brook, NY
11790

Opening Hours

Monday 6am - 8pm
Tuesday 6am - 8pm
Wednesday 6am - 8pm
Thursday 6am - 8pm
Friday 6am - 12pm
Saturday 7am - 1pm
Sunday 8am - 12pm

Telephone

+16313649027

Website

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