- SPECIAL OFFER! $99 office visit includes prescription phentermine. Cash Only.
The SI Medical Weight Loss Program
- FDA Approved Semaglutide is In-Stock
- Personalized Medical Weight Loss Program
- Physician-Assisted Medical Weight Loss
- Prescription Included
- Walk-Ins Welcome
- Insurance Reimbursement Available

I look forward to helping you accomplish your weight loss goals!
Dr. Kim
Serving Belleville and Marion, IL

Today is the day to take the next step in losing weight!
We are your family medical weight loss clinic that specializes in health and weight management.
If you’ve ever said, “I want to lose some weight. I want to look and feel better about myself,” then today is the day to take that step! There is no reason to put it off and we will help you get to where you want to be. SI Medical Weight Loss Clinic helps people gain control of their weight and their lives through our medical weight loss program.
SI Medical Weight Loss Clinic serves Southern Illinois in Belleville and Marion.
- Physician and Dietitian Oversight
- Prescriptions Included*
- Easy Scheduling**
- Walk-ins Welcome


You can achieve a better, healthier lifestyle!
We understand the struggles that come with losing weight because we’ve been through it too. Through counseling and personal attention, our staff delivers a comprehensive weight loss system.
- Pharmaceutical Appetite Suppression Medication
- Fat Burning Injections & Pills
- Clinically Proven Diet
- Recommended Exercise Schedule
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
Our Convenient Locations
Program Information
Featured Content
Our Cleanliness Commitment

SI Medical Weight Loss is proud to use RAZOR-UV touchless sanitizing technology to clean our Alton, Belleville, and Marion locations.
Proudly Supporting St. Jude

St. Jude is SI Medical Weight Loss Clinic’s $1000 “Biggest Loser” April 2021 Winner!
Our Radio Spot