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Lauren Ferrari Loeffler, M.D.

Photo of Dr. Lauren Ferrari Loeffler, M.D.

Assistant Professor of Pediatrics


Expertise: Pediatric Kidney Transplant, Pediatric Nephrology

Research Interests: Hypertension; Chronic Kidney Disease; International health; Health disparities; Infectious kidney diseases; Immunologic kidney diseases

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Johns Hopkins Pediatrics
Appointment Phone: 443-997-5437

200 N. Wolfe Street
Rubenstein Child Health Building
Baltimore, MD 21287 map
Phone: 410-955-4427
Fax: 410-614-3680


Dr. Lauren F. Loeffler is an assistant professor of pediatrics at the Johns Hopkins University School of Medicine. Her area of clinical expertise is pediatric nephrology, and she provides care for children with kidney problems of any type, from microscopic hematuria to kidney transplant recipients. 

She received her bachelor’s degree in chemistry from Rhodes College and earned her M.D. at the University of Tennessee College of Medicine. She completed her pediatric residency at University of Virginia Health System.  Dr. Loeffler went on to complete a fellowship in pediatric nephrology at Johns Hopkins University, and as part of her fellowship training, she received an M.H.S. in clinical epidemiology from the Johns Hopkins Bloomberg School of Public Health

Dr. Loeffler’s research interests have included childhood hypertension and albuminuria in chronic kidney disease.  Currently her clinical work focuses on both acute and chronic kidney diseases, with special interests idiopathic nephrotic syndrome of childhood and infectious and immunologic kidney diseases.  Dr. Loeffler works in the outpatient pediatric hemodialysis center as well, and is invested in caring for patients with end-stage kidney disease and their families. more


  • Assistant Professor of Pediatrics

Departments / Divisions



  • MD, University of Tennessee Health Science Center College of Medicine (2006)
  • MHS, Johns Hopkins Bloomberg School of Public Health (2011)


  • University of Virginia Health System / Pediatrics (2009)


  • Johns Hopkins University School of Medicine / Pediatric Nephrology (2012)

Board Certifications

  • American Board of Pediatrics / Pediatric Nephrology (2014)
  • American Board of Pediatrics / Pediatrics-General (2009)

Research & Publications

Selected Publications

Elevated uric acid and obesity-related cardiovascular disease risk factors among hypertensive youth. Reschke LD, Miller ER 3rd, Fadrowski JJ, Loeffler LF, Holmes KW, Appel LJ, Brady TM. Pediatr Nephrol. 2015 Dec;30(12):2169-76.

Kidney function and tobacco smoke exposure in US adolescents. García-Esquinas E, Loeffler LF, Weaver VM, Fadrowski JJ, Navas-Acien A. Pediatrics. 2013 May;131(5):e1415-23.

Uric acid level and elevated blood pressure in US adolescents: National Health and Nutrition Examination Survey, 1999-2006. Loeffler LF, Navas-Acien A, Brady TM, Miller ER 3rd, Fadrowski JJ. Hypertension. 2012 Apr;59(4):811-7.

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