It's Time to Achieve Your Weight Loss Goals Once and For All

Proudly Serving the Community with FDA-Approved Medical Weight Loss Solutions for 14 Years.

Personalized FDA-Approved Medical Weight Loss
FDA-Approved Semaglutide is In-Stock
Affordable rates. No contracts. We will never lock you in.
Achieve Your Weight Loss Goals at Your Pace
Prescription Included
Walk-Ins Welcome
Insurance Reimbursement Available

SI Medical Weight Loss BBB Business Review

Your Family Medical Weight Loss Clinic

SI Medical Weight Loss Clinic helps you gain control of your weight and your life! We are family-owned and have served the community for 14+ years. Our friendly, experienced team is ready to help you achieve your weight loss goals through a variety of personalized programs and services.

Explore Our Programs & Services

Serving Marion, IL & Belleville, IL

Visit our two convenient locations in Marion, IL and Belleville, IL for all of your physician-assisted weight loss and wellness needs.

* Qualifications Apply: Phentermine and B-6 & B-12/Lipotropic Injections are available to clients who qualify.

** Appointment Exceptions: No appointment is required for follow-up B-6/B-12 shots, weighing-in, or blood work.

You can achieve a better, healthier lifestyle!

We understand the struggles that come with losing weight because we’ve been through it too. Our staff delivers a comprehensive weight loss system through counseling and personal attention.

Lose weight and keep it off with personalized support.

Our experience and expertise in weight management commit us to providing you with the personal care and support you will need. Our program is designed to help you reach your “target” weight goal during the active phase of treatment and then prevent its return during the transition and maintenance phases. Enhance your health, enjoy your life!

Our Commitment to Community

We’re dedicated to more than just weight loss—we’re committed to uplifting our community. Recently, our own Tracy and Skyla proudly represented us at Z100’s St. Jude Radiothon. As ABC’s of Cancer sponsors, we support initiatives that empower women and promote overall wellness. Thank you, Z100, for the kind recognition and for inspiring us to make a meaningful difference.

Your Success is Our Success!

Sammy lost 32 lbs and 5 3/4 inches in the waist over 4 months.*

* Results not guaranteed. Individual results vary.

Since beginning SI’s program, I have gone from a size 14 to a size 8 for the first time in 15 years. I have bought a swimming suit. I know I have to do my part, but with SI Weight Loss Clinic’s help I have more self-confidence and much happier with the way I look. My husband has noticed the changes too!!! Thank you!

Tammy Cook

Disclaimer: The results shown in these before-and-after photos are from actual patients of our medical weight loss program. Results are not guaranteed and may vary from person to person. Weight loss depends on many factors, including your age, health condition, and adherence to the prescribed plan. These photos are for illustrative purposes only and do not constitute a promise or warranty of specific results. Always consult with a licensed healthcare provider before starting any weight loss or medical treatment.

Meet Our Medical Weight Loss Team

Tracy Baker

VP & Practice Administrator

Springg Clark

Regional Manager

Emily Culbreth

Registered Nurse

Lacey Smothers

Esthetician, SI Med Spa Plus

Amanda Craft

Medical Administrative Specialist

Skyla Baker

Medical Assistant

Ashtyn Sturgeon

Medical Assistant

It's time to hit those weight loss goals once and for all!

SI Medical Weight Loss Clinic’s FDA-approved medical weight loss programs are designed to meet you where you are and to achieve your weight loss goals at the pace that is right for you.

We offer affordable rates with no contracts. We will never lock you in.