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Like your doctor, your pharmacist plays an important role in helping you maintain your well-being. When you choose Mercy's Pharmacy at Dierbergs Deer Creek Crossing in O’Fallon, located at Highways K and N, you’ll have a pharmacist who can assist you, not only with routine prescriptions but with hard-to-find and hard-to-fill ones as well.
At Mercy, we offer compassionate care for a variety of treatment services, including:
Use your MyMercy account to quickly refill or renew. Log in now.