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Mariana Lazo, MD

  • Associate Professor

Departmental Affiliations

  • School of Medicine (Primary)
  • Epidemiology (Joint)
    • Division: Cardiovascular and Clinical Epidemiology

Center & Institute Affiliations

Contact Information

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PhD, Johns Hopkins Bloomberg School of Public Health, 2011
ScM, Johns Hopkins Bloomberg School of Public Health, 2006
MD, La Salle Del Pedregal, 2002


Dr. Mariana Lazo is an Assistant Professor of Medicine and Epidemiology and a core faculty member of the Welch Center for Prevention Epidemiology, and Clinical Research, School of Medicine and Johns Hopkins Bloomberg School of Public Health, The Johns Hopkins University.

She studies the epidemiology of nonalcoholic fatty liver disease, diabetes and obesity in adults. She also studies the effects of moderate alcohol consumption on liver and cardiovascular diseases. 

Dr. Lazo mentors graduate students and is co-director of the "Epidemiology of Diabetes and Obesity" course at the JHSPH. She is also co-director of the Diabetes and Obesity Interest Group (

Honors and Awards

2003-2006 National Council for Science and Technology. Mexico.

2011          Inductee, Delta Omega Society

2011          Inductee, Phi Beta Kappa Society

  • Liver disease
  • diabetes
  • obesity
  • effects of alcohol consumption
  • Latino Health

Selected publications from the last 11 years

  • Lazo M, Selvin E., Clark JM. Clinical Implications of Short-Term Variability in Liver Function Test Results. Ann Intern Med. 2008 Mar 4;148(5):348-52. PMID: 18316753. 
  • Lazo M, Solga SF, Horska A, Bonekamp S, Diehl AM, Brancati FL, Wagenknecht LE, Pi-Sunyer FX, Kahn SE, Clark JM; for the Fatty Liver Subgroup of the Look AHEAD Research Group. The Effect of a 12-Month Intensive Lifestyle Intervention on Hepatic Steatosis in Adults with type 2 Diabetes. Diabetes Care. 2010 Oct;33(10):2156-63. PMID: 20664019.
  • Hernaez R., Lazo M, Bonekamp S, Kamel I, Brancati FL, Guallar E, Clark JM. Diagnostic accuracy and reliability of ultrasonography for the detection of fatty liver: a meta-analysis.  Hepatology. 2011 Sep 2;54(3):1082-90 PMID: 21618575.
  • Lazo M., Hernaez R., Bonekamp S, Kamel I, Brancati FL, Guallar E, Clark JM. Nonalcoholic Fatty Liver Disease and Mortality among US Adults: A prospective cohort study. BMJ. 2011 Nov 18;343:d6891. PMID:  22102439.
  • Lazo M,  Young JH, Brancati FL, Coresh J, Whelton S, Ndumele CE, Hoogeveen R, Ballantyne CM, Selvin E. NH2-Terminal Pro-Brain Natriuretic Peptide and Risk of Diabetes. Diabetes. 2013 Sep;62(9):3189-93. PMID: 23733199.