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Education & Training

  • St Vincent's Medical CenterResidency, Internal Medicine, 1979 - 1981
  • Yale UniversityM.P.H., Chronic Disease Epidemiology, 1978
  • Case Western Reserve University - MetroHealthInternship, Internal Medicine, 1975 - 1976
  • Case Western Reserve University School of MedicineClass of 1975
  • Amherst CollegeB.S., English, 1968

Certifications & Licensure

  • FL State Medical License
    FL State Medical License 2009 - 2013
  • NY State Medical License
    NY State Medical License 1987 - 2023
  • CT State Medical License
    CT State Medical License 1977 - 2017
  • American Board of Internal Medicine Internal Medicine
  • American Board of Preventive Medicine General Preventive Medicine

Awards, Honors, & Recognition

  • Top Clinical Paper for the journal, Hypertension American Heart Association, 2015
  • Distinguished Medical Educator Award St. Vincent�s Medical Center, 2014
  • Resident's Merit Award for "Unusual chromosomal translocation, t(1p+,7q-), and familial leukemia in a patient with chronic myelmonocytic leukemia" 1981

Publications & Presentations


Journal Articles

  • Chlorthalidone and Hydrochlorothiazide for Treatment of Patients with Hypertension  
    Franz H Messerli, George C Roush, Suzanne Oparil, JAMA Internal Medicine
  • Hydrochlorothiazide versus Chlorthalidone, Indapamide, and Potassium-Sparing/Hydrochlorothiazide Diuretics for Reducing Left Ventricular Hypertrophy: A Systematic Revi...  
    Roush GC, Abdelfattah R, Song S, Ernst ME, Sica DA, Kostics JB, J Clinical Hypertension, 1/1/2018
  • Hydrochlorothiazide and alternative diuretics versus renin-angiotensin system inhibitors for the regression of left ventricular hypertrophy: a head-to-head meta-analysis  
    Roush GC, Abdelfattah R, Song S, Kostis JB, Ernst ME, Sica DA, J Hypertens, 1/1/2018
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Books/Book Chapters

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  • Proceedings, Advances in Cancer Control VI
    Halper MS, Roush GC, Diemer K, 1/1/1988
  • Dependence of total nevi on dyplastic nevi in determining risk for melanoma
    Roush G, McKay L, Nordlund J, et al, Prev Med, 1/1/1986


  • Chlorthalidone versus Hydrochlorothiazide for management of hypertension 
    Multiple locations, 2013, 2015 - 1/1/2015
  • Resistant hypertension 
  • Methodologic aspects of meta-analyses 


  • Diagnosis of the dysplastic nevus in different populations 
    Roush GC, Barnhill RL, Duray PH, et al, Year Book of Dermatology

Authored Content

  • Chlorthalidone and Hydrochlorothiazide for Treatment of Patients with HypertensionJune 2020

Grant Support

  • Origins Of Cancer Susceptibility--Cells VS PlasmaNational Cancer Institute1993
  • Enzymatic Measures Of Oxidative Stress And Breast CancerNational Cancer Institute1989
  • Preventive Oncology Academic AwardNational Cancer Institute1985–1987

Hospital Affiliations