Local directory · O'Fallon, MO

Medical Clinics in O'Fallon, MO

Written & reviewed by Founder, SEO Local · 22 years in SEO · Updated October 2026 · LinkedIn

The US Census (County Business Patterns) counts 14 medical clinics in St. Charles County, MO. Below are the 4 mapped by name from OpenStreetMap — 3 list a phone number and 3 link a website. Every listing here is free, and any owner can claim their page on the hashtag.org network.

Medical Clinics directory · O'Fallon

Data: © OpenStreetMap contributors

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Local news · Medical Clinics · O'Fallon

Medical Clinics in O'Fallon — FAQ

How many medical clinics are in O'Fallon, MO?
The US Census (County Business Patterns) counts 14 medical clinics establishments in St. Charles County, MO. 4 are mapped by name in this directory.
How many of these medical clinics list contact details?
Of the 4 medical clinics mapped here, 3 list a phone number and 3 link a website.
Is this O'Fallon medical clinics directory free?
Yes. Every listing is built from free public data — US Census County Business Patterns and OpenStreetMap — and any business can claim its page on the hashtag.org network at no cost.

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