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David J. Vearrier,


Title: Program Director, Medical Toxicology Fellowship; Associate Professor

Practices: Drexel Emergency Medicine

Specialty: Emergency Medicine, Medical Toxicology, Occupational Medicine


Drexel Emergency Medicine
245 N. 15th Street
MS 1011
Philadelphia, PA 19102
Maps & Directions

Phone: 215.762.2368
Fax: 215.762.1307
Hahnemann University Hospital Emergency Room
230 N. Broad Street
Philadelphia, PA 19102
Maps & Directions

Phone: 215.762.7000


  • MPH - Drexel University School of Public Health (2013)
  • MD - University of California San Diego (2005)
  • BA in Psychology and History - University of California Berkeley (2000)

Memberships / Professional Affiliations

  • Member, American College of Occupational and Environmental Medicine
  • Fellow, American Academy of Emergency Medicine
  • Fellow, American College of Medical Toxicology
  • Fellow, American Academy of Clinical Toxicology

Clinical Services

Emergency medical procedures, Toxicology


David Vearrier, MD, MPH, is on staff at Hahnemann University Hospital and Roxborough Memorial Hospital, where he sees patients as an attending physician in the emergency department. He oversees emergency medicine resident physicians and physician assistants while they provide care in the emergency department. Dr. Vearrier serves on the Pharmacology and Therapeutics Committee and the Graduate Medical Education Committee at Hahnemann University Hospital.

Dr. Vearrier also sees patients as a medical toxicologist both in the emergency department and on an inpatient basis at St. Christopher’s Hospital for Children, Hahnemann University Hospital, Mercy Hospital of Philadelphia and Mercy Fitzgerald Hospital. He oversees medical toxicology fellows as they provide care at those facilities. Dr. Vearrier is on staff at the Children’s Hospital of Philadelphia, where he provides expert medical toxicology consultation for the regional Poison Control Center.

Dr. Vearrier earned his bachelor of arts degrees in history and psychology from the University of California, Berkeley, which he attended on a merit-based Regents' and Chancellor's Scholarship, the University's most prestigious award to incoming undergraduates. He graduated with high distinction and completed his thesis on "The History of the Bancroft Library."

He was awarded a second Regents' and Chancellor's Scholarship at the University of California, San Diego, where he attended the School of Medicine and earned his doctor of medicine (MD) degree. Dr. Vearrier subsequently earned his master of public health (MPH) degree from Drexel University School of Public Health. He is a member of the Beta Omega Chapter of the Delta Omega Public Health Honor Society.

Dr. Vearrier completed his residency in emergency medicine at Hahnemann University Hospital/Drexel University College of Medicine. Following residency, he continued his training at Hahnemann and Drexel University College of Medicine, completing his fellowship in medical toxicology. After working at an outside institution, he returned to Drexel.

Dr. Vearrier completed a residency in occupational medicine at the University of Pennsylvania Perelman School of Medicine. As a resident, he twice won the American College of Occupational and Environmental Medicine Resident Research Award and also won the American Occupational Health Conference Occupational Physicians Scholarship Fund Resident Scholarship. He is a certified medical review officer and has conducted thousands of reviews of employment-related drug tests.

Affiliated Hospitals

Hahnemann University Hospital, Roxborough Memorial Hospital, Children's Hospital of Philadelphia, Mercy Philadelphia Hospital, Mercy Fitzgerald Hospital


  • Medical Toxicology - Drexel University College of Medicine (2008–2010)


  • Emergency Medicine - Hahnemann University Hospital/Drexel University College of Medicine
  • Occupational Medicine - University of Pennsylvania Perelman School of Medicine


  • Emergency Medicine - Hahnemann University Hospital/Drexel University College of Medicine

In the Media


Dr. Vearrier’s peer-reviewed journal articles, book chapters, meeting abstracts, presentations and other publications are available at the National Center for Biotechnology Information.

Selected Recent Publications

How Do I Diagnose and Treat Workers With Injuries From Hydrofluoric Acid?
Vearrier D
J Occup Environ Med. 2016 Jul;58(7):e275-7. doi: 10.1097/JOM.0000000000000762. PubMed PMID: 27218277.

Issues in driving impairment 
Vearrier D, Vearrier L, McKeever R, Okaneku J, LaSala G, Goldberger D, McCloskey K
Dis Mon. 2016 Apr;62(4):72-116. doi: 10.1016/j.disamonth.2016.02.002. Epub 2016 Mar 17. Review. PubMed PMID: 26997643.

Sea-dumped chemical weapons: environmental risk, occupational hazard
Greenberg MI, Sexton KJ, Vearrier D
Clin Toxicol (Phila). 2016;54(2):79-91. doi: 10.3109/15563650.2015.1121272. Epub 2015 Dec 22. Review. PubMed PMID: 26692048.

Phenol Toxicity Following Cutaneous Exposure to Creolin®: A Case Report 
Vearrier D, Jacobs D, Greenberg MI
J Med Toxicol. 2015 Jun;11(2):227-31. doi: 10.1007/s13181-014-0440-1. PubMed PMID: 25326371; PubMed Central PMCID: PMC4469710.

Metal fume fever and polymer fume fever
Greenberg MI, Vearrier D
Clin Toxicol (Phila). 2015 May;53(4):195-203. doi: 10.3109/15563650.2015.1013548. Epub 2015 Feb 23. Review. PubMed PMID: 25706449.

Change in perceived risk associated with marijuana use in the United States from 2002 to 2012
Okaneku J, Vearrier D, McKeever RG, LaSala GS, Greenberg MI
Clin Toxicol (Phila). 2015 Mar;53(3):151-5. doi: 10.3109/15563650.2015.1004581. Epub 2015 Feb 3. PubMed PMID: 25646638.

K2--not the spice of life; synthetic cannabinoids and ST elevation myocardial infarction: a case report
McKeever RG, Vearrier D, Jacobs D, LaSala G, Okaneku J, Greenberg MI
J Med Toxicol. 2015 Mar;11(1):129-31. doi: 10.1007/s13181-014-0424-1. PubMed PMID: 25154434; PubMed Central PMCID: PMC4371021.

Effect of single-dose Ginkgo biloba and Panax ginseng on driving performance
LaSala GS, McKeever RG, Patel U, Okaneku J, Vearrier D, Greenberg MI
Clin Toxicol (Phila). 2015 Feb;53(2):108-12. doi: 10.3109/15563650.2014.999159. Epub 2015 Jan 19. PubMed PMID: 25597699.

The epidemiology and characteristics of carbon monoxide poisoning among recreational boaters
LaSala G, McKeever R, Okaneku J, Jacobs D, Vearrier D
Clin Toxicol (Phila). 2015 Feb;53(2):127-30. doi: 10.3109/15563650.2014.996571. Epub 2015 Jan 8. PubMed PMID: 25567686.

Urine uranium concentrations and renal function in residents of the United States--2001 to 2010
Okaneku J, Vearrier D, Mckeever R, Lasala G, Greenberg MI
Clin Toxicol (Phila). 2015;53(10):931-4. doi: 10.3109/15563650.2015.1094704. Epub 2015 Oct 15. PubMed PMID: 26468995.