Addiction Toxicology Case Conference - June 2025

Dr. Tim Wiegand is an Associate Professor of Emergency Medicine and Public Health Sciences at the University of Rochester Medical Center (URMC) in Rochester, New York. Board-certified in both Medical Toxicology and Addiction Medicine, Dr. Wiegand specializes in Addiction Toxicology, combining clinical practice with research, teaching, and leadership roles. He has served two terms on the Board of Directors for the American College of Medical Toxicology (ACMT) and is currently on the Board of Directors for the American Society of Addiction Medicine (ASAM). From 2023-2025, he served as Treasurer of ASAM, having previously served as Vice President on the Executive Council. From 2025-2027, Dr. Wiegand will serve as ASAM President Elect and then ASAM President (2027-2029). Dr. Wiegand founded and led the Toxicology Service at URMC until 2022, when he transitioned to Director of Addiction Medicine and Director of Addiction Medicine Consults in the Department of Emergency Medicine. He also serves as Fellowship Director for the URMC Combined Addiction Medicine Fellowship and is leading efforts to launch the URMC Medical Toxicology Fellowship, which is expected to be formally accredited by July 2023.

Since 1986, Dr. Gloria Baciewicz has specialized in the treatment of addiction. Professor of clinical psychiatry at the University of Rochester Medical Center, she serves as an addiction psychiatrist at Strong Recovery. Dr. Baciewicz is certified in addiction medicine by the American Board of Preventive Medicine and board certified in psychiatry, with added qualifications in addiction psychiatry. Dr. Baciewicz is a co-principal investigator for the University of Rochester’s Recovery Center of Excellence.

Dr. Calello, a New Jersey native and devotee, is currently the Director of Medical Toxicology at Morristown Medical Center and a toxicologist at the New Jersey Poison Information and Education System (NJPIES). She has lectured and published on various facets of clinical toxicology, particularly as it pertains to extracorporeal treatment, intravenous lipid emulsion, and poisoning in the young child. Dr. Calello received her BA from the College of William and Mary and her MD from New Jersey Medical School. She completed residency training in pediatrics, and fellowship training in both pediatric emergency medicine and medical toxicology at the Children’s Hospital of Philadelphia and Poison Control Center in Philadelphia. Dr. Calello is board certified in pediatrics, pediatric emergency medicine, medical toxicology, and addiction medicine.

Jeanna Marraffa is currently the Clinical Director of the Upstate New York Poison Center and a Clinical Professor in the Department of Emergency Medicine at Upstate Medical University, University Hospital in Syracuse, NY. She graduated from Union University, Albany College of Pharmacy with her Pharm.D. Degree in 2001 and have completed a one-year ASHP accredited Pharmacy Practice Residency at SUNY Upstate Medical University, Department of Pharmacy. She completed a 2-year Fellowship Program in Clinical Toxicology and Emergency Medicine in 2004 at the Upstate New York Poison Center, Department of Emergency Medicine at SUNY Upstate Medical University in Syracuse, NY and became a Diplomate of the American Board of Applied Toxicology in 2005. She received her Masters of Public Health in May 2020 from SUNY Albany. She has published numerous publications in the field of toxicology and have authored a book chapter in the 9th, 10th, 11th and upcoming 12th editions of Goldfrank’s Toxicologic Emergencies on “Dieting Agents”. She currently serves as president for the American Academy of Clinical Toxicology.

Donna Papsun is a forensic toxicologist and business scientist with NMS Labs in Horsham, PA. She has dual Bachelor of Science degrees in Chemistry and Forensic & Investigative Science and a Master of Science degree in Pharmacology. She is also certified as a Diplomate in Forensic Toxicology through the American Board of Forensic Toxicology and is a member of both the Society of Forensic Toxicologists (SOFT) and the American Academy of Forensic Sciences (AAFS). 

Ms. Papsun has been with NMS Labs since 2008, first as a bench analyst before promotion to toxicologist in 2012. Ms. Papsun’s main area of interest is novel psychoactive substances or NPS. As one of the two leaders of NMS’s NPS strategy team, she continuously works to help maintain NMS’s leadership in identifying the newest trends in the changing landscape of the designer drug market and developing tests for their detection in forensic toxicology casework. Ms. Papsun also serves in a secondary role as a business scientist, working to align the technical and scientific expertise of NMS Labs with commercial efforts.