Now seeing members in Manhattan·Bellmore·Stony Brook
GLP-1 Medical Weight Loss
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Clinical therapy · Prefusion Health

Lose
fat, not muscle. 

Lose fat while protecting the muscle you want to keep, clinically managed and tracked with DEXA so you can see exactly what is changing.

Starts with a DEXA and a consult
4.8 on Google3 NY locationsMedical-grade carePrivate-pay, no insurance
Every therapy starts the same way.GLP-1 Medical Weight Loss begins with a DEXA scan and a full blood panel. We measure first, then we treat. No guessing, no generic protocol.
Book your baseline →
How it begins

It starts with your numbers.

GLP-1 medical weight loss starts with data, not a prescription. Your entry visit is a consult with a provider, a DEXA scan and a full blood panel, so the plan is built on your numbers.

Buy now, pay today

Start with your consult and labs

Glp-1 therapy is prescribed only when your numbers support it, so it starts with a consult, a DEXA scan and a full blood panel.

$199 one-time entry visit

This is the entry visit, not the therapy. Treatment is quoted after your consult, once we have your results.

  • Weight-loss suitability review with a provider
  • DEXA body composition scan
  • Full blood panel
  • Your results reviewed in person
  • A prescription only if your labs support it

Every therapy starts with a DEXA scan and full blood panel. No guessing, no generic protocol.

Not sure yet?

Talk to us first

Have questions about whether this is right for you? Book a no-pressure consultation with our team.

Why do it here

Lose fat, keep the muscle

1

A DEXA baseline first

Most GLP-1 programs never measure. We know exactly how much of you is fat and how much is muscle before day one.

2

We protect your lean mass

Rapid weight loss costs you muscle. Quarterly DEXA proves whether the weight coming off is fat, and we adjust if it is not.

3

Medically supervised

Dosing, side effects and titration handled by clinicians who see your labs.

4

A plan for after

Nutrition, protein targets and training so the result holds when you come off.

The GLP-1

Everything in one picture

What it is, what is included and what to expect, in one view.

GLP-1 Medical Weight Loss
What it is

Fat loss, clinically managed

GLP-1 medication can be a powerful tool for stubborn fat that has not moved with effort alone. At Prefusion it is always physician-managed and always measured.

DEXA first
We set your baseline before we begin.
Muscle-safe

Keep what you built.

Quarterly DEXA confirms the loss is fat.

What is included

What you get

Baseline DEXA scan and medical consult
A physician-managed GLP-1 plan
Follow-up DEXA tracking so loss is fat, not muscle
Nutrition guidance to protect lean mass
Member pricing when you join the membership
MD led
Physician managed every step.
What to expect

Your visit, step by step

1
Start with a DEXA and consultWe set your baseline and review whether GLP-1 is right for you.
2
Begin your managed planIf it fits, a physician prescribes and manages your therapy.
3
Track with DEXAFollow-up scans confirm you are losing fat and holding muscle.
Go deeper

The detail, made simple

Why we track with DEXA

Rapid weight loss can cost you muscle if it is not managed well, and the scale will never tell you the difference.

Pairing GLP-1 with DEXA means we can see your body composition change and protect the lean mass that keeps your metabolism strong.

Why we track with DEXA

What you get

Baseline DEXA scan and medical consult
A physician-managed GLP-1 plan
Follow-up DEXA tracking so loss is fat, not muscle
Nutrition guidance to protect lean mass
Member pricing when you join the membership
GLP-1 Medical Weight Loss

Your visit, step by step

1. Start with a DEXA and consult. We set your baseline and review whether GLP-1 is right for you.

2. Begin your managed plan. If it fits, a physician prescribes and manages your therapy.

3. Track with DEXA. Follow-up scans confirm you are losing fat and holding muscle.

Is this right for you?

You have stubborn fat that has not responded to effort
You want a clinically supervised approach
You want to keep your muscle while losing fat
You value measured progress over the scale alone
Who it is for
Benefits

Why the GLP-1 program works

FDA-approved and proven

Semaglutide and tirzepatide are FDA-approved and backed by large clinical trials.

Fat loss, not muscle loss

DEXA tracking and dietitian support keep the loss fat, protecting the muscle that keeps your metabolism strong.

Targets visceral fat

Reduces the deep abdominal fat linked to heart disease and insulin resistance, measured by DEXA.

Appetite control without willpower

The medication works on your hunger signals, so cravings stop running the show.

Better blood sugar

Improves insulin sensitivity and stabilizes blood sugar, benefits well beyond the scale.

Medically supervised

Licensed providers adjust your plan every 90 days on your real data.

FAQ

Good to know

What medications are used?
FDA-approved GLP-1 medications such as semaglutide and tirzepatide, which regulate appetite and support fat loss while preserving lean muscle.
Will I lose muscle on GLP-1?
No. The program pairs the medication with DEXA tracking and dietitian support so the weight you lose is fat, not muscle.
How often am I monitored?
Monthly clinical check-ins plus DEXA scans, so your progress stays safe and on track.
Can I stop the medication later?
Yes. Once you reach your goals and your metabolic health is optimized, you can taper off under medical supervision.
How soon will I see results?
Many clients see noticeable fat loss and better metabolism within a few weeks. Full results build over several months.
Will I regain the weight after stopping?
The program is built for sustainable loss, muscle retention and metabolic health, so you keep results with healthy habits after stopping.
Keep exploring

Related at Prefusion

Real reviews

Rated 4.8 on Google

★★★★★ 4.8 · 55 Google reviews from New Yorkers who stopped guessing and started measuring
★★★★★

“Ten out of ten experience, super knowledgeable staff. I did the DEXA scan, RMR and VO2 max, then they sat me down and went through all of it, making sure I understood what my numbers meant and what to do next.”

Allen Y. · Google review
★★★★★

“Bryan and the team have been consistently awesome to me and my friends. You get your raw scores, it is explained to you in person and on a handy app, and you leave with real recommendations on how to improve.”

Andrew H. · Google review
★★★★★

“Ten out of ten experience, super knowledgeable staff. I did the DEXA scan, RMR and VO2 max, then they sat me down and went through all of it, making sure I understood what my numbers meant and what to do next.”

Allen Y. · Google review
★★★★★

“Bryan and the team have been consistently awesome to me and my friends. You get your raw scores, it is explained to you in person and on a handy app, and you leave with real recommendations on how to improve.”

Andrew H. · Google review
★★★★★

“Matt was an incredible consultant. The optimization package finally gave me something concrete and efficient to work with. It has done a full 360 for my plans going forward.”

Khao · Google review
★★★★★

“Training for a race, I came in for the optimization package. Between the DEXA scan, RMR and VO2 testing, I have full clarity on where my health is and what I need to improve.”

Elias Z. · Google review
★★★★★

“Matt was an incredible consultant. The optimization package finally gave me something concrete and efficient to work with. It has done a full 360 for my plans going forward.”

Khao · Google review
★★★★★

“Training for a race, I came in for the optimization package. Between the DEXA scan, RMR and VO2 testing, I have full clarity on where my health is and what I need to improve.”

Elias Z. · Google review
★★★★★

“I am a big numbers girl, so seeing the detailed data from my DEXA scan and VO2 max was super helpful for my running goals. They guided and supported me through the whole process.”

Amy D. · Google review
★★★★★

“Super comprehensive results, all the detail on the app and a clear explanation in person. We loved it so much we bought a 6-pack so we can track our health journey.”

Pallavi P. · Google review
★★★★★

“I am a big numbers girl, so seeing the detailed data from my DEXA scan and VO2 max was super helpful for my running goals. They guided and supported me through the whole process.”

Amy D. · Google review
★★★★★

“Super comprehensive results, all the detail on the app and a clear explanation in person. We loved it so much we bought a 6-pack so we can track our health journey.”

Pallavi P. · Google review

Ready to measure what matters?

Book your visit at Manhattan, Bellmore or Stony Brook.

Book your visit Call (516) 496-1717
Not sure where to start?