O'Fallon, MO
Simply Health Integrated Medical — O'Fallon, MO
Simply Health Integrated Medical is the integrated medical clinic for O'Fallon, MO patients — start with the full service menu and the county hub at [Simply Health Integrated Medical in St. Charles County](/st-charles). We're at 12977 N Forty Dr, Suite 105, St. Louis, MO 63141, about a 25-30 minute drive east on I-64 or I-70 from O'Fallon, the largest city in the county. Whether you're coming from WingHaven, off Highway K, or near Bryan Road, it's one clinic for weight loss, hormones, and functional medicine instead of a separate office for each.
What to expect
Simply Health Integrated Medical helps patients understand symptoms, goals, and options before recommending a care path.
The next step is a consultation request or direct call so the team can determine whether the clinic is a good fit for your needs.
Quick assessment
What's Actually Causing Your Weight Resistance?
Take the 3-minute weight-resistance quiz and find out whether the bigger lever for you is hormonal, metabolic, or lifestyle — so you don't waste another year on the wrong plan.
Drive times from O'Fallon, MO to 12977 N Forty Dr
O'Fallon is spread out, so your route depends on where you start. From the southern side near WingHaven and Highway DD, I-64 east and the Daniel Boone Bridge is usually cleanest; from the north side near Fort Zumwalt Park, TR Hughes Ballpark, or Bryan Road, I-70 east and the Blanchette Bridge tends to win. Either way you'll finish on the I-64/Highway 40 outer road near the I-64 & I-270 interchange, and either way it's about 25-30 minutes.
What O'Fallon, MO patients come in for
As the county's largest and one of its more affluent cities, O'Fallon sends us a lot of busy parents and professionals who are done with the fifteen-minute, one-symptom-at-a-time model of care. The Simply Health Method for stubborn weight, bio-identical hormone therapy for the fatigue and sleep changes of midlife, and functional medicine for the symptoms that never got a real workup are the three biggest reasons O'Fallon patients make the drive. Having all three in one clinic is the point — you're evaluated as a whole person, not routed between offices.
Why a longer commute changes what you expect from care
O'Fallon families already build their lives around the drive east — to work, to games, to the airport. When you're spending 25-30 minutes to get somewhere, you want that visit to actually move the needle, not just refill a script. That's the case for an evaluation-first clinic: one trip that looks at metabolism, hormones, and underlying drivers together, so weight loss and BHRT get considered side by side rather than across two more appointments.
Take a quiz or request an O'Fallon consultation
Not sure if your weight resistance is metabolic, hormonal, or something a functional workup should chase? Take the short weight-resistance self-assessment quiz, or book directly. Call (636) 590-4686 or request an O'Fallon consultation online — the clinic is by appointment 24/7, so you can plan the drive around your calendar.
Our clinic, a straight shot east from O'Fallon



Frequently asked
Common questions
▸Where is the nearest medical clinic to O'Fallon, MO?
Simply Health Integrated Medical, at 12977 N Forty Dr, Suite 105, St. Louis, MO 63141, is the nearest integrated clinic for weight loss, BHRT, and functional medicine to O'Fallon. It sits on the I-64/Highway 40 outer road near the I-64 & I-270 interchange, about 25-30 minutes east.
▸How long is the drive from O'Fallon to Simply Health Integrated?
About 25-30 minutes. From the WingHaven and Highway DD side, I-64 and the Daniel Boone Bridge is usually best; from the Fort Zumwalt Park and Bryan Road side, I-70 and the Blanchette Bridge tends to be faster.
▸Can O'Fallon patients get bio-identical hormone therapy here?
Yes. BHRT is one of the top three reasons O'Fallon patients come in, alongside The Simply Health Method for weight loss and functional medicine. Because it's one clinic, hormones and weight loss can be evaluated together.
▸Which O'Fallon zip codes does the clinic serve?
Simply Health Integrated Medical serves all of O'Fallon, including zip codes 63366 and 63368, along with the rest of St. Charles County.
▸Do O'Fallon patients need a referral to become new patients?
No referral is needed. O'Fallon patients can call (636) 590-4686 or request a consultation online. The clinic books by appointment 24/7 and starts every new patient with an evaluation.
Next step
Ready to find the right next step?
If this page sounds like what you are looking for, request a consultation or call the office so the team can help you choose the right starting point.

