We are excited to announce our expanded IV Drip Lounge will be coming soon this Fall!

Medical Weight Loss

Medical Weight Loss and Semaglutide in O’Fallon 

Shedding Pounds for Good in Wentzville, Lake St. Louis, and Their Surrounding Areas

Our priority at Ultra Wellness Medical is to help you enjoy a long and healthy life, and a key factor in achieving this is a healthy and stable weight. Dr. Michael Williams, D.O. offers medical weight loss services to our clients from O’Fallon, Chesterfield, Lake St. Louis, and Wentzville. If you are ready to take action to implement effective, long term lifestyle changes and shed excess pounds, we provide individualized advice and steps to help you achieve your goal. 

We are here to support you every step of your wellness journey, and our staff members can address any questions or concerns you may have about your treatment plan. Dr. Williams can also combine medical weight loss with other services to maximize your results.


Call Ultra Wellness Medical today at (636) 259-5222 or use our online form to schedule a medical weight loss consultation in O’Fallon!


Our Comprehensive Medical Weight Loss Approach

A lifestyle that includes a nutritious diet, regular exercise, and appropriate sleep hygiene, is vital for your health. Without question, obesity, our diets, and a sedentary lifestyle are prime causes for chronic diseases like diabetes, heart disease, arthritis, and sleep apnea.   Dr. Williams can share tips and habits to implement for your long-term well-being. Our goal is to help you move from lifespan, the years we are alive, to healthspan, the years we stay active and engaged. 

At Ultra Wellness Medical, we use the state-of-the-art FIT3D body scanner for precise body measurements and composition analysis. This allows us to monitor changes over time and adjust medication, supplements, and lifestyle steps we are recommending to help you achieve your weight target.

Fit 3D Phone App Preview

We offer the following weight loss program:

  • 12 week package with an initial medical consultation
  • A 3D initial body analysis scan
  • A follow-up FIT3D body analysis between 8 and 12 weeks
  • Follow-up visits every 4 weeks in-office or via video
  • Ordering and review of baseline metabolic labs such as blood glucose, liver function, and thyroid function.  (lab fees can be run through insurance and not included in weight management price)
  • Vitamin supplements available designed by Dr. Williams to maintain micronutrient levels, improve energy, increase fullness after meals.  All natural, pharmaceutical grade, no stimulants or caffeine.
  • Prescription medication options such as Semaglutide (Ozempic/Wegovy) to qualified individuals.
  • Lipo-B “Skinny Shot” intramuscular Injection options and IV drip options to increase metabolism and fat burn at member pricing.
  • 10% discount on Emerald Laser FDA approved weight loss and body contour treatment packages.

Consultation and office visits free for members. Contacts us now at (636) 259-5222 to get started on a slimmer and healthier way of life.


Our team works with a registered dietician and health coach. We can use a variety of methods to help you safely and sustainably lose weight, including effective prescription medications and customized supplements like our IV and IM injection nutritional therapy to optimize nutrient levels and help aid in energy and your bodies ability to burn fat.

Enjoy the Many Benefits of a Healthy and Stable Weight

Achieving and maintaining a healthy body weight has a broad range of benefits including preventing future medical issues and alleviating current symptoms. It can also contribute to improved mental health, increased energy and vitality, improvement in hormone levels, and allow you to engage in more activities.

Keeping your healthy weight long-term leads to improved longevity.

A healthy and stable weight can reduce your risk of medical problems like:

  • Cardiovascular disease or stroke
  • Diabetes
  • Arthritis or other joint issues
  • Asthma
  • Snoring or sleep apnea
  • Cancer

It is never too late to get into shape, and our team is here to help you reach your goal. As you implement new habits and make progress with your weight loss, we adjust your care to optimize your health. 

Why Choose Us for Your Medical Weight Loss Journey

Ultra Wellness Medical offers a medical weight loss program customized to you in O’Fallon. Our team is prepared to help you find long-term weight loss success and embrace the side-effects of a healthier lifestyle. Here are a few benefits associated with choosing Ultra Wellness Medical: 

  • Customized Treatment Plans: Medical weight loss programs involve personalized assessments and tailored treatment plans. This individualized approach takes into account your medical history, current health status, and specific weight loss goals, allowing for a more effective and targeted strategy.
  • Supervised Medical Care: Medical weight loss programs are often overseen by healthcare professionals, such as doctors, registered dietitians, and nurses. This level of supervision ensures that your weight loss journey is safe and well-monitored. Our team can make adjustments to your plan based on your progress and any health concerns that may arise.
  • Comprehensive Approach to Health: Our reputable medical weight loss program will focus on more than just calorie restriction. It will incorporate various aspects of health, such as nutritional education, behavior modification, physical activity recommendations, and even psychological support. This comprehensive approach aims to address the underlying causes of weight gain and promote long-term lifestyle changes.

Are you ready for a healthier lifestyle in O’Fallon, Chesterfield, Lake St. Louis, or Wentzville? Contact Ultra Wellness Medical today at (636) 259-5222 to learn about our medical weight loss solutions!


COMPASSION. INNOVATION. TRUST. It’s How Medicine Should Be
  • Accessible Membership Healthcare
  • Direct Physician Care at Every Appointment
  • Personal Treatment Plans
THE FUTURE OF HEALTHCARE Wellness Starts Here
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