Advanced Bariatrics

Advanced Bariatrics Advanced Bariatrics was created to help people struggling with obesity confront their challenges and discover a happier, healthier way of living.

Education Matters. 📚💪Did you know that without proper education on nutrition and exercise, GLP-1 medications can cause y...
01/29/2026

Education Matters. 📚💪

Did you know that without proper education on nutrition and exercise, GLP-1 medications can cause you to lose critical muscle mass—not just fat?

🚨 Losing muscle mass can impact:
• Strength and mobility
• Long-term function and independence
• Metabolic health
• Future healthcare costs

Here’s the real risk 👉
If muscle is lost during GLP-1 treatment and weight is regained after stopping the medication, the weight that returns is fat—not muscle. That can leave you less healthy than when you started.

That’s why how you lose weight matters just as much as how much you lose.

Working with a team like Team Cheregi ensures GLP-1 medications are used safely, strategically, and effectively—so you lose fat, protect muscle, and build results that last.

📩 DM us to learn how education + support = long-term success.



Up to 39% of lean muscle mass can be lost during GLP-1 treatment. Learn why structured movement is critical to protecting long-term health.

01/28/2026

Weight Loss Wednesday ✨

With so much information out there in 2026, it’s easy to feel overwhelmed by the different paths to weight loss. The good news? You don’t have to have all the answers right now.

At Team Cheregi, our focus is education and support. We break down the available treatment options and help you understand what may align best with your goals and lifestyle—whether that includes medical weight loss, bariatric surgery, or a combination of both.

📅 Join us LIVE on Facebook
🕕 February 4th at 6:00 PM

Learn about today’s weight loss options, ask questions, and take the first informed step forward—no pressure, just guidance.

👉 Set a reminder and tune in to learn more.




This could be your reality in  #2026 ✨Hundreds of patients lost thousands of pounds in 2025. You could be one of those p...
01/27/2026

This could be your reality in #2026 ✨

Hundreds of patients lost thousands of pounds in 2025. You could be one of those people in 2026. If is holding you back from moving forward with your it’s time to tell fear to take a back seat. is holding you back from the life you deserve. Life is too short to live with regrets. Unleash your inner beast to tackle obesity head on with the tools that will equip you with for long term success!

Education makes the difference. 💡Not every bariatric program prioritizes investing in patients through education — but a...
01/26/2026

Education makes the difference. 💡

Not every bariatric program prioritizes investing in patients through education — but at Advanced Bariatrics, we believe an educated patient is a successful patient.

That’s why we offer a free monthly support group for our patients, focused on education, connection, and long-term success.

📅 February Support Group Topic:
Our psychology partners, Dr. Lofland and Dr. Greenberg, will lead an important discussion on transfer addiction after bariatric surgery — a key topic in maintaining long-term health and balance.

✨ Knowledge empowers you.
✨ Support sustains you.
✨ You never walk this journey alone.


01/22/2026

“How much weight can I lose with weight-loss medications?” 🤔

It’s one of the most important questions you can ask — because making an informed decision starts with understanding your options.

Weight-loss medications are not one-size-fits-all.
Each patient is different, and your health history, goals, and needs matter.

It’s also essential to understand the cost considerations, especially if insurance doesn’t cover GLP-1 medications, so you can plan realistically and confidently.

✨ Whether you qualify for medical weight loss or bariatric surgery, education and the right tools are what drive long-term success.

At Team Cheregi, we believe informed patients make empowered decisions — and we’re here to guide you every step of the way.

📩 DM us to learn more or schedule a consultation.





01/21/2026







Transformation Tuesday ✨Yolanda is 1 year post–gastric bypass with Team Cheregi and has already lost 110 lbs — and she’s...
01/20/2026

Transformation Tuesday ✨

Yolanda is 1 year post–gastric bypass with Team Cheregi and has already lost 110 lbs — and she’s still going.

She’s glowing with confidence and experiencing meaningful improvements in her health.

A surgiversary isn’t the finish line — it’s a milestone.

Because obesity is a chronic disease, long-term success comes from a continued commitment to a healthy lifestyle and ongoing support.

💪 Your health is always worth fighting for.
🌱 You deserve a life without limitations.
✨ You deserve to live fully and confidently.

At Team Cheregi, we’re here to support you every step of the journey — today, tomorrow, and long after surgery.

📩 Ready to take the first step? DM us to learn more.


Did you know? 👀Although many patients medically qualify for bariatric surgery, only a small percentage ever move forward...
01/19/2026

Did you know? 👀
Although many patients medically qualify for bariatric surgery, only a small percentage ever move forward.

Even among those who attend a consultation, most never take the next step.
Why?

Fear. Uncertainty. Lack of education. Limited support. Financial concerns.

✨ It doesn’t have to be that way.
At Team Cheregi, the experience is different.
Over 80% of patients who come in for a consultation move forward with surgery.

So what makes the difference?
✔️ Education — understanding your options and the process
✔️ Support — never walking this journey alone

Our mission is simple: to educate, equip, and support you with the tools needed for long-term success.

📩 Curious to learn more? DM us to start the conversation.

01/16/2026

Word of the Day: Curious ✨

Healthy living isn’t meant to be boring.

If your meals feel repetitive or your workouts feel stale — change it up.

You’re not locked into one routine, one recipe, or one way of doing things.

Variety keeps things exciting, enjoyable, and sustainable.

🌱 Try a new recipe
🏃‍♀️ Switch up your movement
💡 Explore what works best for you

Because staying curious is what keeps a healthy lifestyle going for the long term.

💬 What’s one new thing you’re curious to try this week?

01/14/2026

Weight Loss Wednesday 💡
New Year’s resolutions to get healthy are at an all-time high — and with so much information out there, it’s easy to feel overwhelmed.
That’s why education is the foundation of everything we do.
At next week’s info session, Nurse Practitioner Vanessa will break down the different weight-loss options available and explain how education plays a critical role in helping you maximize your results.
✨ Whether your path includes medical weight loss or bariatric surgery, Team Cheregi is here to equip you with the knowledge, tools, and support needed for long-term success.
📩 DM us to learn more.




Transformation Tuesday 💥Samantha’s journey is nothing short of inspiring.After her SADI-S surgery, she has lost an incre...
01/13/2026

Transformation Tuesday 💥

Samantha’s journey is nothing short of inspiring.
After her SADI-S surgery, she has lost an incredible 196 lbs — and gained confidence, strength, and control over her health.

✨ It’s never too late to make your health a priority.

You don’t have to feel stuck. You get to choose your own path forward.

At Team Cheregi, our role is to educate, equip, and support you.
Your role is to show up, trust the process, and keep moving forward.

💡 This is a marathon, not a race — and you don’t have to do it alone.
📩 Take the first step. DM us to start your transformation.





New Year. New Health. Real Results. 💪✨Jessica made a decision in 2025 that changed everything — she chose herself.At her...
01/12/2026

New Year. New Health. Real Results. 💪✨
Jessica made a decision in 2025 that changed everything — she chose herself.
At her 1-year surgiversary, she:
✔️ Lost 72 lbs
✔️ Achieved 81% excess weight loss
✔️ Celebrated a huge non-scale victory by now running 5Ks 🏃‍♀️
2025 was the year Jessica invested in her health and her future — and it paid off in ways beyond the scale.
✨ 2026 can be your year.
Stop waiting for the “right time.”
Now is the time to put yourself first.
💬 Ready to take the first step? DM us to get started.



Address

802 Fox Glen Court
Barrington, IL
60010

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 4pm

Telephone

+18473509564

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Advanced Bariatrics

Led by two fellowship-trained weight loss surgery specialists, Dr. John Cheregi and Dr. Hsin-Yi Chang, Advanced Bariatrics was created to help people struggling with obesity confront their challenges and discover a happier, healthier way of living.

For many people, obesity is a chronic condition that requires medical intervention. At Advanced Bariatrics, we are committed to providing a judgment-free environment. We work closely with our patients to develop a treatment plan that will redefine what the future looks like.

The collaborative approach used by Dr. Chang and Dr. Cheregi is designed to help our patients identify the plan and procedure that will help them achieve success. Our doctors are passionate about being there every step of the way during what becomes a life-changing journey for most of our patients.