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    Dr. Thomas J. Harrison, MD

    Pediatrics, Adolescent Medicine

    • (636) 441-5437

    Dr. Harrison's Overview

    Dr. Harrison graduated from the University of Missouri, Columbia School of Medicine in 1979. He works in Cottleville, MO and specializes in Pediatrics and Adolescent Medicine. Dr. Harrison is affiliated with Mercy Hospital St Louis.

    Dr. Harrison's Experience

    Years in Practice: 37

    Dr. Harrison's Specialties

    Pediatrics, Adolescent Medicine

    Dr. Harrison's Education & Training

    Medical School: University of Missouri, Columbia School of Medicine; Graduated 1979

    Dr. Harrison's Rating

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    Overall Rating


    • Explains conditions & treatments
    • Takes time to answer my questions
    • Provides follow-up as needed
    • View All Ratings

    Dr. Harrison's Accepted Insurance

    Please verify insurance information directly with your doctor's office as it may change frequently.

    • Aetna Choice POS II
    • Aetna HMO
    • Aetna Managed Choice POS Open Access
    • Aetna Signature Administrators PPO
    • Anthem Blue Access PPO
    • Anthem Blue Preferred HMO
    • Anthem Blue Preferred Plus POS
    • Anthem Blue Preferred Select
    • Anthem MO Blue Preferred Options
    • Anthem MO Direct Access wHSA
    • View More

    Dr. Harrison's Office Information & Appointments

    Office Locations

    Mercy Clinic
    Saint Charles County Pediatrics

    4525 Mid Rivers Mall Dr Ste 20
    Cottleville, MO 63376
    (636) 441-5437


    Office Hours and Information

    Fax: (636) 441-4398

    Practice Website:

    Accepting New Patients: Yes

    Medicare Accepted: No

    Medicaid Accepted: Yes

    Monday 8:00 AM - 4:30 PM
    Tuesday 8:00 AM - 4:30 PM
    Wednesday 8:00 AM - 4:30 PM
    Thursday 8:00 AM - 4:30 PM
    Friday 8:00 AM - 4:30 PM
    Saturday Closed
    Sunday 8:00 AM - 5:00 PM

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