Advanced Bariatrics of Northern Illinois
Bariatric Surgery & Medical Weight Loss in Barrington, IL
Personalized surgical and nonsurgical weight-loss care from an experienced bariatric team serving Chicago’s northwest suburbs.
Expert Weight Loss Care
Grounded in Science
Serving Patients Throughout Chicago’s
Northwest Suburbs
At Advanced Bariatrics, Dr. Hsin-Yi Chang, Dr. John Cheregi, and Dr. Daniel Hoeltgen provide personalized bariatric surgery and medically managed weight-loss care. Supported by an experienced team of nurse practitioners and dietitians, our surgeons guide patients through every stage of their journey with compassionate care, proven treatment options, and ongoing support. Our goal is to help you achieve meaningful, lasting weight loss and enjoy a healthier, more active life.
Check out what patients say
Insurance & Payment
We accept most major insurance providers and will be happy to walk you through your coverage.
Schedule a Virtual Consultation
Whether you’re at home, in your car, or back to work, Advanced Bariatrics is making your first visit easier than ever with our virtual consultations
What Our Patients Are Saying
Take the First Step Toward a Healthier Life
Whether you are considering bariatric surgery or exploring medically managed weight loss, our experienced team is here to help you understand your options and find the right path forward.
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Whether you have a question, need to reschedule, or are ready to book your first visit, our friendly team is here to help. Reach out anytime — we're happy to assist you.
