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.

Andrea Tudisco, RN, BSN has 20 years of experience in providing nursing care to underserved populations such as people experiencing homelessness, living with HIV/AIDS, mental health and substance use disorders. Since 2022, Andrea has worked as an RN with Health Reach’s Street Medicine Program in Rochester, NY. As a member of a multidisciplinary outreach team, she provides medical support, health education, and advocacy to individuals experiencing homelessness and those with limited access to traditional healthcare. With a background in acute care, mental health and substance use, Andrea brings both clinical expertise and a deep commitment to equity and dignity in healthcare. Her work focuses on building trust, reducing barriers to care, and meeting people where they are—literally and figuratively.

Dr. Tim Wiegand is the Director of Toxicology Consults and President of CMO Medicine and Toxicology & Addiction Consulting. 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. Tim Wiegand is the Director of Toxicology Consults and President of CMO Medicine and Toxicology & Addiction Consulting. 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. Robert “Cole” Pueringer is a Medical Toxicologist, Addiction Medicine Specialist, and Hospitalist. He joined Essentia Health in September of 2022. He completed his medical training in the Twin Cities, including Medical School at the University of Minnesota, Internal Medicine Residency and Chief Resident year at Hennepin County Medical Center (HCMC). He received his CTropMed certification for Tropical Medicine & Travelers’ Health at the University of Minnesota. He then completed a Medical Toxicology fellowship at the Health Partners Institute/HCMC in 2021 and an Addiction Medicine fellowship at the University of Minnesota in 2022. His academic interests include medical education, Global Health, and the overlap of Medical Toxicology and Addiction Medicine. He is particularly passionate about substance use disorder - a disease that has affected many aspects of his own life – and hopes to contribute significantly to substance use treatment, education, de-stigmatization, and harm reduction in northern Minnesota.

Dr. Mayank Gupta is based in University of Rochester Medical Center in Rochester, NY, specializing in Emergency Medicine with a subspecialty in Medical Toxicology. He completed his medical degree at Michigan State University College of Human Medicine in 2020, followed by a residency in Emergency Medicine at Corewell Health William Beaumont University Hospital from 2020 to 2023. He completed his Medical Toxicology fellowship at Emory University School of Medicine from 2023 to 2025.

Dr. Bryan Ross is an Emergency Medicine specialist and a Psychiatrist in Cleveland, Ohio at University Hospitals Cleveland Medical Center. He received his Medical Degree from University of Toledo College of Medicine, completed his Emergency Medicine Residency at the Hospital of the University of Rochester Medical Center and completed his Fellowship in Medical Toxicology at Indiana University Hospital. 

Dr. King is an Emergency medicine physician, Medical Toxicologist and Addiction Medicine specialist at the Detroit Medical Center and Wayne State University. He works as an emergency physician at Sinai Grace and Detroit Receiving Hospitals. He additionally works at the Tolan Park Research Center where he sees patients with substance use disorders. He is the interim director of the Michigan Poison and Drug Information Center and the Fellowship Director of the Medical Toxicology Fellowship. He is excited to be an organizer and presenter at the Total Tox Course!

Dr. David Carroll is a Medical Toxicologist at Michigan Poison and Drug Information Center and Assistant Professor of Emergency Medicine, Wayne State University SOM. 

Dr. Tim Wiegand is the Director of Toxicology Consults and President of CMO Medicine and Toxicology & Addiction Consulting. 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. Tim Wiegand is the Director of Toxicology Consults and President of CMO Medicine and Toxicology & Addiction Consulting. 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. Tim Wiegand is the Director of Toxicology Consults and President of CMO Medicine and Toxicology & Addiction Consulting. 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. Tim Wiegand is the Director of Toxicology Consults and President of CMO Medicine and Toxicology & Addiction Consulting. 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. Tim Wiegand is the Director of Toxicology Consults and President of CMO Medicine and Toxicology & Addiction Consulting. 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. Tim Wiegand is the Director of Toxicology Consults and President of CMO Medicine and Toxicology & Addiction Consulting. 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. Tim Wiegand is the Director of Toxicology Consults and President of CMO Medicine and Toxicology & Addiction Consulting. 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.