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Andrew Meltzer Andrew Meltzer
Professor of Emergency Medicine

Office Phone: 202-741-2904
Email: Email
Department: Emergency Medicine


Andrew C. Meltzer, MD MS FACEP is a Professor of Emergency Medicine and the Chief of the Clinical Research Section at the George Washington University School of Medicine. Dr. Meltzer completed his MD at SUNY Downstate, residency in Emergency Medicine at the University of Maryland and R Adams Cowley Shock Trauma Center, and his fellowship in Clinical Research at the University of Maryland. He is a Fellow of the American College of Emergency Physicians (ACEP) and member of the ACEP Clinical Policies Committee and the Society of Academic Emergency Medicine (SAEM) Research Committee. He was an author of the SAEM GRACE-2 Guidelines for Abdominal Pan and serves as a member of the External Oversight Board for the NIH-funded SIREN research network. As a researcher, Dr. Meltzer is dedicated to translating novel diagnostic strategies and treatments into clinical practice. He was the principal investigator on the NIH-funded multi-center randomized control trial on medical expulsive therapy for renal colic. In addition, he was the PI on a multi-center trial examining novel ways to diagnose gastrointestinal hemorrhage, the site PI on the CDC Recover grant, and overall PI for the HYPERACT trial examining acute management of patients with respiratory distress. As part of a team, he developed SAEM guidelines for care for abdominal pain in the ED in addition to international guidelines for the acute management of gastrointestinal bleeding. He is a practicing physician in a variety of ED settings including community, academic and military hospitals ensuring that his research has a real-world application. In addition, he has experience working with two successful technology companies as a chief medical officer. As of this writing, Dr. Meltzer had over 50 peer-reviewed authorships in PubMed and an i10-index of 25.

Residency Training:
Residency in Emergency Medicine, University of Maryland

Fellowship Training
Clinical Research, University of Maryland

Board Certified in Emergency Medicine

Professional Societies:
ACEP Clinical Policies Committee
SAEM Research Committee

Special Interests:
POC Diagnostics and Abdominal Pain Emergencies
Gastrointestinal Research

Interest Section(s)

  • Clinical Research


Meltzer AC, Newton S, Lange J, Hall NC, Vargas NM, Huang Y, Moran S, Ma Y. A randomized control trial of a multiplex gastrointestinal PCR panel versus usual testing to assess antibiotics use for patients with infectious diarrhea in the emergency department. J Am Coll Emerg Physicians Open. 2022 Jan 15;3(1):e12616. doi: 10.1002/emp2.12616. PMID: 35072157; PMCID: PMC8760946.

Broder JS, Oliveira J E Silva L, Bellolio F, Freiermuth CE, Griffey RT, Hooker E, Jang TB, Meltzer AC, Mills AM, Pepper JD, Prakken SD, Repplinger MD, Upadhye S, Carpenter CR. Guidelines for Reasonable and Appropriate Care in the Emergency Department 2 (GRACE-2): Low-risk, recurrent abdominal pain in the emergency department. Acad Emerg Med. 2022 May;29(5):526-560. doi: 10.1111/acem.14495.

Meltzer AC, Limkakeng AT Jr, Gentile NT, Freeman JQ, Hall NC, Vargas NM, Fleischer DE, Malik Z, Kallus SJ, Borum ML, Ma Y, Kumar AB. Risk stratification with video capsule endoscopy leads to fewer hospital admissions in emergency department patients with low-risk to moderate-risk upper gastrointestinal bleed: A multicenter clinical trial. J Am Coll Emerg Physicians Open. 2021 Oct 25;2(5):e12579. doi: 10.1002/emp2.12579. PMID: 34723247; PMCID: PMC8544929.

Silverman RA, House SL, Meltzer AC, Hahn B, Lovato LM, Avarello J, Miller JB, Kalfus IN, Fathi R, Raday G, Plasse TF, Yan EC. Bimodal Release Ondansetron for Acute Gastroenteritis Among Adolescents and Adults: A Randomized Clinical Trial. JAMA Netw Open. 2019 Nov 1;2(11):e1914988. doi: 10.1001/jamanetworkopen.2019.14988. PubMed PMID: 31702802; PubMed Central PMCID: PMC6902785.

Barkun AN, Almadi M, Kuipers EJ, Laine L, Sung J, Tse F, Leontiadis GI, Abraham NS, Calvet X, Chan FKL, Douketis J, Enns R, Gralnek IM, Jairath V, Jensen D, Lau J, Lip GYH, Loffroy R, Maluf-Filho F, Meltzer AC, Reddy N, Saltzman JR, Marshall JK, Bardou M. Management of Nonvariceal Upper Gastrointestinal Bleeding: Guideline Recommendations from the International Consensus Group. Ann Intern Med. 2019 Dec 3;171(11):805-822. doi: 10.7326/M19-1795. PubMed PMID: 31634917; PubMed Central PMCID: PMC7233308.

Lee P, Le Saux M, Siegel R, Goyal M, Chen C, Ma Y, Meltzer AC. Racial and ethnic disparities in the management of acute pain in US emergency departments: Meta-analysis and systematic review. Am J Emerg Med. 2019 Sep;37(9):1770-1777. doi: 10.1016/j.ajem.2019.06.014. PubMed PMID: 31186154.

Meltzer AC, et. al. Effect of Tamsulosin on Passage of Symptomatic Ureteral Stones: A Randomized Clinical Trial. JAMA Intern Med. 2018; 178 (8):1051-1057. doi:10.1001/jamainternmed.2018.2259.

Meltzer AC, Winter LE, Kulie P, Benedict C, Lim K, Ishmukhamedov O, McCarthy ML. Treating Gastritis, Peptic Ulcer Disease, and Dyspepsia in the Emergency Department: The Feasibility and Patient-Reported Outcomes of Testing and Treating for Helicobacter pylori Infection. Ann Emerg Med. 2015 Aug;66(2):131-9. doi: 10.1016/j.annemergmed.2015.02.008. PMID: 25805114.

Meltzer AC, Bregman, B, Blanchard, J. In Patients with Non-Specific Abdominal Pain, Moderate to Severe Depression is Associated with Repeat Emergency Department Visits. West J Emerg Med. 2014 May; 15(3):325-8. doi: 10.5811/westjem.2013.7.15635.

Meltzer, A. C., Burnett, S., Pinchbeck, C., Brown, A. L., Choudhri, T., Yadav, K., … Pines, J. M. (2013). Pre-Endoscopic Rockall and Blatchford Scores to Identify Which Emergency Department Patients with Suspected Gastrointestinal Bleed Do Not Need Endoscopic Hemostasis. The Journal of Emergency Medicine, 44(6), 1083–1087., 2013, June.

Meltzer AC, Baumann BM, Chen EH, Shofer, Mills AM. Poor Sensitivity of a Modified Alvarado Score in Adults with Suspected Appendicitis. Annals of Emergency Medicine. Annals of Emergency Medicine. 2013 Aug; 62(2):126-31. doi: 10.1016/j.annemergmed.2013.01.021.

Industry Relationships and Collaborations

This faculty member (or a member of their immediate family) has reported a financial interest with the health care related companies listed below. These relations have been reported to the University and, when appropriate, management plans are in place to address potential conflicts.

  • 1EQ
  • Babyscripts