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Lose Weight Today!

Personalized Medical Weight Loss Programs by SI Medical Weight Loss Clinic

  • Our FDA-approved medical weight loss programs are designed to achieve your weight loss goals at your pace.
  • FDA-Approved Semaglutide In-Stock
  • Affordable rates.  No contracts.  We will never lock you in.
  • Personalized Medical Weight Loss Program
  • Prescription Included
  • Walk-Ins Welcome
  • Insurance Reimbursement Available
  • HOLIDAY 2024 SPECIAL!
  • Tirzepatide + Office Visit Starting at $350.00
  • Semaglutide + Office Visit Starting at $199.00.
  • Phentermine + Office Visit Starting at $109.00.
  • All specials valid only for qualified patients.
Schedule Appointment

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

Two Convenient Locations

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

  • Physician and Dietitian Oversight
  • Prescriptions Included*
  • Easy Scheduling**
  • Walk-ins Welcome

* 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.
  • Pharmaceutical Appetite Suppression Medication
  • Fat Burning Injections & Pills
  • Clinically Proven Diet
  • Recommended Exercise Schedule

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!

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

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.

Schedule an Appointment