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Megan O'Brien, DO, Radiology, Town and Country, MO


Radiology Town and Country, MO


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  • Neuroradiology Fellowship MIR 2024-2025

Education & Training

  • St Louis University School of Medicine
    St Louis University School of MedicineChief Residency, Radiology-Diagnostic, 2022 - 2023
  • St Louis University School of Medicine
    St Louis University School of MedicineResidency, Radiology-Diagnostic, 2020 - 2023
  • Washington University in St. Louis
    Washington University in St. LouisPET, Freesurfer Postprocessing Certifications, Neuroradiology Research Position, Image post-processing and Clinical Application of Research in Advanced Imaging Techniques, Dementia, Benzinger Lab, 2019 - 2019
  • Carle Foundation Hospital
    Carle Foundation HospitalGeneral surgery categorical resident, 2018 - 2019
  • University of Central Florida/HCA Healthcare GME (Ocala)
    University of Central Florida/HCA Healthcare GME (Ocala)Residency, Surgery, 2017 - 2018
  • A. T. Still University Kirksville College of Osteopathic Medicine
    A. T. Still University Kirksville College of Osteopathic MedicineClass of 2017
  • Rhodes College
    Rhodes CollegeBS, Neuroscience, Cum Laude, 2008 - 2012

Certifications & Licensure

  • MO State Medical License
    MO State License 2020 - 2025
  • IL State Medical License
    IL State License 2018 - 2021
  • FL State Medical License
    FL State License 2017 - 2018

Awards, Honors, & Recognition

  • 95th percentile on ABSITE Surgery residency programs, 2018
  • Graduated top 10% of medical class ATSU, 2017
  • Sigma sigma phi Osteopathic honor society/fraternity, 2015-2017

Publications & Presentations


Journal Articles

  • Understanding Preventable Deaths in the Geriatric Trauma Population: Analysis of 3,452,339 Patients From the Center of Medicare and Medicaid Services Database  
    Ang D, Nieto K, Sutherland M, O'Brien M, Liu H, Elkbuli A, The American Surgeon, 11/2021
  • Time from neuraxial anesthesia placement to delivery is inversely proportional to umbilical arterial cord pH at scheduled cesarean delivery  
    Rebecca R. Rimsza, MD William M. Perez, MD Shilpa Babbar, MD, MS Megan O’Brien, DO Laura K. Vricella, MD, AJOG, 1/9/2019
  • Acute appendicitis complicated by necrotizing fasciitis in a teenager  
    Kauffman J, O'Brien M, et al, Journal of Pediatric Surgery Case Reports, 7/2018


  • A case of adrenal hemorrhage in the setting of heparin-induced thrombocytopenia.
    O’Brien M DO, Nolte M MD, University of Illinois Research Day, Urbana, IL, 2018
  • 556: Contributors to neonatal acidemia among morbidly obese gravidas at term cesarean delivery
    Vricella L, Rimsza R, O’Brien M, Miller Colin, AJOG, 2018
  • Effect Of Exercise On Interstitial PO2 And Contractile Function In The Diaphragm Of Diabetic Rats
    Rath, Travis D.; Shaffer, Ladonna B.; Buell, Joshua H.; O’Brien, Megan L.; Sexton, William L. FACSM, Medicine & Science in Sports & Exercise, 2015

Professional Memberships