Lose Weight Today

Personalized Medical Weight Loss Programs by SI Medical Weight Loss Clinic

Your Family Medical Weight Loss Clinic

Specializing in Health and Weight Management

SI Medical Weight Loss Clinic helps people gain control of their weight and their lives through our medical weight loss program, semaglutide, tirzepatide, phentermine, B-6/B-12 & lipo injections, and bioidentical hormone replacement therapy for women.

Convenient Belleville, IL and Marion, IL Locations

* 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 our experience and personal 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!

Patient Success Stories

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

I just want to sing the praises of SI Medical Weight Loss, I have been a client since the 1st of Nov. and as of last night I have dropped 46 lbs.it has been work but with their help and encouragement it has been much easier than it could have been. I am loving my new body and feeling better in my clothes. My BP is back to normal and I feel great. Thanks so much for all your help.

Denise Mandrell

Schedule an Appointment Today and Find Out if Medical Weight Loss is Right For You.

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.