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 6/16/2022

Teja B, Bosch NA, Wijeysundera DN, Wijeysundera HC, Saskin R, Hill AD, Stelfox HT, Walkey A, Wunsch H. First-line Vasopressor Use in Septic Shock and Route of Administration: An Epidemiologic Study. Ann Am Thorac Soc. 2022 Jun 16. PMID: 35709214.

Published on 6/7/2022

Garcia MA, Johnson SW, Sisson EK, Sheldrick CR, Kumar VK, Boman K, Bolesta S, Bansal V, Bogojevic M, Domecq JP, Lal A, Heavner S, Cheruku SR, Lee D, Anderson HL, Denson JL, Gajic O, Kashyap R, Walkey AJ. Variation in Use of High-Flow Nasal Cannula and Noninvasive Ventilation Among Patients With COVID-19. Respir Care. 2022 Jun 07. PMID: 35672139.

Published on 6/6/2022

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 Jun 06. PMID: 35661394.

Published on 6/1/2022

Bosch NA, Law AC, Rucci JM, Peterson D, Walkey AJ. Predictive Validity of the Sequential Organ Failure Assessment Score versus Claims-based Scores among Critically Ill Patients. Ann Am Thorac Soc. 2022 Jun; 19(6):1072-1076. PMID: 35266866.

Published on 5/27/2022

Sayed IA, Bhalala U, Strom L, Tripathi S, Kim JS, Michaud K, Chiotos K, Dapul HR, Gharpure VP, Bjornstad EC, Heneghan JA, Irby K, Montgomery V, Gupta N, Gupta M, Boman K, Bansal V, Kashyap R, Walkey AJ, Kumar VK, Gist KM. Gastrointestinal Manifestations in Hospitalized Children With Acute SARS-CoV-2 Infection and Multisystem Inflammatory Condition: An Analysis of the VIRUS COVID-19 Registry. Pediatr Infect Dis J. 2022 May 27. PMID: 35622434.

Published on 5/24/2022

Law AC, Bosch NA, Walkey AJ. Procedure Codes for Intubated Prone Positioning: A Turn for the Better. Ann Am Thorac Soc. 2022 May 24. PMID: 35608404.

Published on 5/24/2022

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 May 24. PMID: 35608537.

Published on 5/18/2022

Rampon G, Jia S, Agrawal R, Arnold N, Martín-Quir?s A, Fischer EA, Malatack J, Jagan N, Sergew A, Case AH, Miller K, Tanios M, Doros G, Ross CS, Garcia MA, Gillmeyer KR, Griffiths NG, Jandali B, Modzelewski KL, Rucci JM, Simpson SQ, Walkey AJ, Bosch NA. Smartphone-Guided Self-prone Positioning vs Usual Care in Nonintubated Hospital Ward Patients With COVID-19: A Pragmatic Randomized Clinical Trial. Chest. 2022 May 18. PMID: 35597286.

Published on 5/17/2022

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 May 17. PMID: 35580345.

Published on 5/5/2022

Law AC, Bosch NA, Peterson D, Walkey AJ. Comparison of Heart Rate After Phenylephrine vs Norepinephrine Initiation in Patients With Septic Shock and Atrial Fibrillation. Chest. 2022 May 05. PMID: 35526604.

View full list of 227 publications.