Allan J. Walkey MD, MSc

Professor, Pulmonary, Allergy, Sleep & Critical Care Medicine

Associate Professor, Health Law, Policy & Management

72 E. Concord Street | (617) 638-4860
Allan Walkey

Pulmonary, Allergy, Sleep & Critical Care Medicine


Evans Center for Implementation & Improvement Sciences

Pulmonary Center

Framingham Heart Study

Evans Center for Interdisciplinary Biomedical Research


Dr. Walkey investigates epidemiology and clinical outcomes of complications that occur in patients who are critically ill. Using clinical and administrative data, Dr. Walkey focuses on interations between organ systems during critical illness and seeks to find effective health care provider practice patterns that are associated with better patient outcomes. His research interests include sepsis, acute lung injury, and atrial fibrillation that occurs during critical illness.


Medicine, MD, University of Massachusetts Medical School, 2002

Psychology, BA, Tufts University, 1997


Published on 11/1/2022

Bosch NA, Law AC, Walkey AJ. Phenobarbital for Severe Alcohol Withdrawal Syndrome: A Multicenter Retrospective Cohort Study. Am J Respir Crit Care Med. 2022 Nov 01; 206(9):1171-1174. PMID: 35833888.

Published on 10/1/2022

Teja B, Bosch NA, Wijeysundera DN, Wijeysundera HC, Saskin R, Hill AD, Stelfox HT, Walkey AJ, Wunsch H. First-Line Vasopressor Use in Septic Shock and Route of Administration: An Epidemiologic Study. Ann Am Thorac Soc. 2022 Oct; 19(10):1713-1721. PMID: 35709214.

Published on 10/1/2022

Law AC, Bosch NA, Walkey AJ. Procedure Codes for Intubated Prone Positioning: A Turn for the Better. Ann Am Thorac Soc. 2022 Oct; 19(10):1634-1635. PMID: 35608404.

Published on 9/1/2022

Audhya X, Bosch NA, Stevens JP, Walkey AJ, Law AC. Changes to Hospital Availability of Prone Positioning after the COVID-19 Pandemic. Ann Am Thorac Soc. 2022 Sep; 19(9):1610-1613. PMID: 35580345.

Published on 9/1/2022

Law AC, Tian W, Song Y, Stevens JP, Walkey AJ. Decline in Prolonged Acute Mechanical Ventilation, 2011-2019. Am J Respir Crit Care Med. 2022 09 01; 206(5):640-644. PMID: 35608537.

Published on 7/27/2022

Gupta N, Settle L, Brown BR, Armaignac DL, Baram M, Perkins NE, Kaufman M, Melamed RR, Christie AB, Danesh VC, Denson JL, Cheruku SR, Boman K, Bansal V, Kumar VK, Walkey AJ, Domecq JP, Kashyap R, Aston CE. Association of Renin Angiotensin Aldosterone System Inhibitors and Outcomes of Hospitalized Patients With COVID-19. Crit Care Med. 2022 Oct 01; 50(10):e744-e758. PMID: 35894609.

Published on 7/20/2022

Rucci JM, Bosch NA, Peterson D, Walkey AJ. Estimating the Impact of COVID-19 on Invasive Mechanical Ventilation Trends in the United States. Ann Am Thorac Soc. 2022 Jul 20. PMID: 35857409.

Published on 7/3/2022

LeSieur MN, Bosch NA, Walkey AJ. Hospital Variation in Mortality and Ventilator Management among Mechanically Ventilated Patients with ARDS. J Intensive Care Med. 2022 Jul 03; 8850666221111748. PMID: 35786134.

Published on 7/1/2022

Bosch NA, Law AC, Bor J, Myers LC, Roubinian NH, Liu VX, Walkey AJ. Red Blood Cell Transfusion at a Hemoglobin Threshold of 7 g/dl in Critically Ill Patients: A Regression Discontinuity Study. Ann Am Thorac Soc. 2022 Jul; 19(7):1177-1184. PMID: 35119978.

Published on 6/27/2022

Harthan AA, Nadiger M, McGarvey JS, Hanson K, Gharpure VP, Bjornstad EC, Chiotos K, Miller AS, Reikoff RA, Gajic O, Kumar V, Walkey AJ, Kashyap R, Tripathi S. Early combination therapy with immunoglobulin and steroids is associated with shorter ICU length of stay in Multisystem Inflammatory Syndrome in Children (MIS-C) associated with COVID-19: A retrospective cohort analysis from 28 U.S. Hospitals. Pharmacotherapy. 2022 Jul; 42(7):529-539. PMID: 35661394.

View full list of 232 publications.