Education
Bachelors of Arts, College of the Holy Cross, 2009
DO, University of New England Col of Osteo Med, 2017
Certifications
American Board of Emergency Medicine - Emergency Medicine
American Board of Emergency Medicine - Medical Toxicology
Residencies
Emergency Medicine, Wellspan York Hospital, York, PA - 2020
Fellowships
Medical Toxicology, Virginia Commonwealth University, Richmond, VA - 2022
Biography

Special Interests

  • Medical Toxicology  
  • Medical Education
Publications

Selected peer-reviewed publications and book chapters

Tobarran N, Hieger MA. Acute Silver Toxicity From Colloidal Silver Overdose. Am J Ther. 2020 Nov/Dec;27(6):e682-e684. doi: 10.1097/MJT.0000000000001047. PMID: 31385825.

Tobarran N, Kershner E, Chambers A, Cumpston KL, Wills BK. Systemic toxicity from subcutaneous brimonidine injection successfully treated with naloxone. Am J Emerg Med. 2022 Sep;59:218.e5-218.e6. doi: 10.1016/j.ajem.2022.07.007. Epub 2022 Jul 6. PMID: 35835657.

Crouse E, Haught J, Tobarran N, Nichols C, Cumpston KL, Wills BK. Skin Necrosis Following Inadvertent Dermal Injection of Extended-release Buprenorphine. J Addict Med. 2022 Mar-Apr 01;16(2):242-245. doi: 10.1097/ADM.0000000000000846. PMID: 33795578

Kershner EK, Tobarran N, Chambers A, Wills BK, Cumpston KL. Retained bullets and lead toxicity: a systematic review. Clin Toxicol (Phila). 2022 Oct;60(10):1176-1186. doi: 10.1080/15563650.2022.2116336. Epub 2022 Sep 8. PMID: 36074021.

Tobarran N, Wills B.K. Elsevier: Clinical Overview:  Black Widow Spider Envenomation. ClinicalKey website. Updated March 15,2023

Kershner E, Tobarran N, Chambers A, Jenkins Z, Wills BK, Cumpston KL. Clinical characteristics and outcomes using dexmedetomidine in nonintubated patients: A poison center observational study. Am J Health Syst Pharm. 2023 Apr 8;80(8):526-531. doi: 10.1093/ajhp/zxac378. PMID: 36546397.

Singh S, Tobarran N. Thyroid Supplement Toxicity and Poisoning. In: Swadron S, Nordt S, Mattu A, and Johnson W, eds. CorePendium. 5th ed. Burbank, CA: CorePendium, LLC. https://www.emrap.org/corependium/chapter/recavpNwtpRng01tm/Thyroid-Supplement-Toxicity-and-Poisoning. Updated October 29, 2024.

N. Tobarran, K.L. Cumpston. Sulfates. Editor(s): Philip Wexler. Encyclopedia of Toxicology (Fourth Edition), Academic Press, 2024, Pages 775-779, ISBN 9780323854344,

Tobarran N, Kershner EK, Cumpston KL, Chambers A, Michienzi A, Rose SR, Charlton N, Wills BK. Vasopressor Requirements in Antipsychotic Overdose: A Poison Center Observational Study. J Clin Psychopharmacol. 2025 Mar-Apr 01;45(2):92-95. doi: 10.1097/JCP.0000000000001965. Epub 2025 Feb 10. PMID: 39919308.

Tobarran N, Ahmed M, Chambers A, Wills BK, Cumpston K, Troendle M, Kershner E. Gaboon Viper (Bitis gabonica) Envenomation With Severe Coagulopathy. Am J Ther. 2025 May 8. doi: 10.1097/MJT.0000000000001940. Epub ahead of print. PMID: 40366344. 

Selected presentations

Tobarran, N., Michienzi A. Tox Time: Toxic Alcohols. Greater Chesapeake Emergency Medicine Conference. UMD. Sep, 2019

Tobarran, N., Visual Stimuli. Department of Emergency Medicine. EVMS. Norfolk, VA. Virtual. Feb, 2021 and Feb, 2022

Tobarran, N., Methemoglobinemia.  NACCT 2021. Intensive Care Symposium. Virtual. Oct, 2021  

Tobarran, N., Kershner, EK. Critical Care Tox. Critical Care Fellowship. VCU Health. Richmond, VA. Feb, 2021

Tobarran, N., APAP: Massive, HD, Fomepizole. Joint Case Conference with UVA. Virtual. May, 2021  

Tobarran, N., Kershner EK, Chambers, A. CT for Evaluation of Caustic Ingestions. ACMT National Journal Club. Virtual. Jan, 2022

Tobarran, N., Kershner EK. Gaboon Viper Envenomation. AACT Webinar Envenomation Section. Virtual. Dec, 2022

Tobarran, N. Toxic Alcohols, Salicylates, Alcohol Ketoacidosis. Maryland Academy of Physician Assistants Annual Conference. Sept 2023

Tobarran, N. Spiders, Scorpions, and Lizards. Oh My! UMEM Weekly Conference. Jan 2023

Tobarran, N, Michenzi A, Pavrey, R, Lakshmi,S. Toxicology Grand Rounds. Masters in Emergency Medicine Program. GW Global Health April 2024  

Tobarran N, Laub D, Taha, S. Apap, Toxic alcohols, Alcohol withdrawal, Tox cases. GW Tox Intern Bootcamp. July 2024

Tobarran N and Laub D, Toxic Clouds. Dangers of smoke inhalation. Joint trauma and emergency medicine grand rounds. GW Hospital. April 2025