Conferences & Events > Seminars in Forensic Toxicology > Faculty Bios


2018 Seminar in Forensic Toxicology Faculty Page

R. Jack Ayres, Jr., JD

Clinical Professor of Emergency Medical Education and Hospital Administration, University of Texas Southwestern Medical School

Ayres.jpgDr. Ayres is Director of the Emergency Legal Assistance Program at Parkland Memorial Hospital in Dallas. He teaches residents, fellows and attending physicians at UT Southwestern Medical School in Dallas, Texas and law students at the Baylor Law School in Waco, Texas. He is Board Certifed by the Texas Board of Legal Specialization in Civil Trial, Personal Injury Triial and Civil Appellate Law and in Civil Trial Law by the National Board of Trial Advocacy. He has been a Licensed Paramedic in Texas since 1978 and holds a permanent license as a Master Peace Officer in the State of Texas. He has tried over 1,000 jury trials and handled several hundred appeals. He has been designated as a “Super Lawyer” in Texas by Texas Monthly Magazine each year since the program began in 2002.

Cathy Bailey, JD

Partner, Steed Dunnill Reynolds Bailey Stephenson LLP

no_avatar.jpgCathy F. Bailey represents clients in medical malpractice cases and other health law related litigation and has done so for over 22 years. In addition, she represents health care providers in administrative law matters before the Texas Medical Board and the Texas Board of Nursing. She has handled a variety of other types of general liability and commercial litigation over the course of her career and has tried numerous jury trials in Texas and Oklahoma. Cathy is a member of the American Board of Trial Advocates.

Jeffrey J. Barnard, MD

Director and Chief Medical Examiner Southwestern Institute of Forensic Sciences, Dallas County and University of Texas Southwestern Medical Center

Barnard.jpgJeffrey J. Barnard received a Bachelor's Degree from Texas A&M University and a Medical Degree from Texas A&M College of Medicine. He held a General Surgery Internship and an Anatomic and Clinical Pathology Residency at the Scott and White Hospital Temple, Texas. He did a Forensic Pathology Fellowship in Suffolk County, New York. He is Board Certified in Anatomic, Clinical and Forensic Pathology. He is the Director and Chief Medical Examiner at the Southwestern Institute of Forensic Sciences, and a Professor of Pathology at the University of Texas Southwestern Medical Center. He is Chairman of the Texas Forensic Science Commission.

Norma Iris Caraballo, PhD

Forensic Chemist

no_avatar.jpgDr. Norma Iris Caraballo is a forensic chemist based out of Dallas, TX. Dr. Caraballo attended Florida International University (FIU) in Miami, Florida where she received her Bachelors of Science in Chemistry in 2008 and her Ph.D. in Chemistry with an Emphasis in Forensic Science in 2014. She has authored and/or co-authored more than 10 oral and poster presentations and has publications in Forensic Science International and Philosophical Transactions of the Royal Society B. Prior to becoming a forensic chemist, Dr. Caraballo was an instrumentation specialist, as well as an adjunct professor at several colleges and/or universities teaching chemistry, forensic science and environmental science. Dr. Caraballo’s passion for teaching has continued, as she has assisted with various trainings both locally and nationally and has given numerous presentations to federal, state, and local law enforcement officials, local citizens, as well as to kids between the ages of 12–18.

Cheri Fry, MA

Program Director, CASA of Denton County

Fry.jpgAs a caseworker and Program Director for CASA of Denton County for over 14 years, Cheri Fry has been involved in over 500 cases dealing with children who find themselves in foster care by no fault of their own. She lives by the philosophy that "Whatever you do for a child, you do to a child". She also teaches volunteers that while we pursue happy endings that may never come, the pursuit is worth it because it's for a child.

Rohini Downs, PharmD, BCPP

Clinical Psychiatric Pharmacist, Parkland Health and Hospital System

downs.jpgDr. Downs is a Board Certified Psychiatric Pharmacist with over 5 years of experience, currently practicing at Parkland Hospital as a Psychiatric Clinical Pharmacy Specialist. She completed 2 years of residency training specializing in Psychiatric pharmacotherapy after receiving her Doctorate of Pharmacy degree in 2010, and has been involved in numerous quality improvement projects, research projects, and student/staff/resident education. Dr. Downs is passionate about patient education, optimal treatment of agitation, and substance abuse treatment. 

Stacey Hail, MD, FACMT

Associate Professor, Emergency Medicine and Medical Toxicology, University of Texas Southwestern Medical Center

Stacey L. Hail, MD, FACMT is an Associate Professor of Emergency Medicine and Medical Toxicology at the University of Texas Southwestern Medical Center in Dallas, Texas. She currently serves as attending physician in the Parkland Hospital Emergency Department and the North Texas Poison Center. Dr. Hail received a Bachelor of Science in Chemistry at Southern Methodist University in 1995. After receiving her Medical Degree at the Medical College of Georgia in 1999, she completed both her emergency medicine residency and medical toxicology fellowship at Parkland Hospital in Dallas, Texas.

Dr. Hail has a prolific forensic toxicology practice serving as an expert witness for attorneys throughout the United States. She has testified multiple times as a witness for the Department of Justice involving federal drug crimes. Her toxicology interests include methodology for cause of death determinations, sudden death in custody and the excited delirium syndrome, and the national opioid epidemic. Dr. Hail also has provided toxicology commentary for local and national news venues and for documentaries on the National Geographic channel, the BBC, and the Oxygen channel.


Professor of Emergency Medicine, SUNY Upstate Medical University

Holland_Michael.jpgDr. Holland is a Senior Medical Toxicologist at Center for Toxicology and Environmental Health (CTEH). He also serves as the Director of Occupational Medicine at the Glens Falls Hospital Center for Occupational Health, and Clinical Associate Professor at SUNY Upstate Medical University. He is also Consulting Medical Toxicologist at the Upstate New York Poison Center in Syracuse, NY. Dr. Holland has over 30 years of experience within Occupational Medicine and Toxicology fields. He conducts toxicological evaluations, human health and ecological risk assessments, community and worker health evaluations, and regulatory compliance consultations. His expertise includes Emergency Medicine, Medical Toxicology, and Occupational Medicine. He has also served as the Medical Unit Leader with an Incident Command Structure (ICS) doing large-scale chemical emergency responses.

Dr. Holland is a member of the American College of Medical Toxicology. He has Fellowship Status Awards from the American College of Medical Toxicology, American College of Emergency Physicians, American College of Occupational and Environmental Medicine and the American Academy of Clinical Toxicology. He currently serves on a variety of Boards and Committees, including: Board of Directors of the American College of Occupational and Environmental Medicine (ACOEM), and the Medical Review Officer Certification Council (MROCC); Committee work for the American Industrial Hygiene Association (AIHA) Emergency Response Planning Committee, and the American Academy of Clinical Toxicology Occupational Toxicology Committee. He is also Regional Medical Director for New England states for the Advanced HazMat Life Support (AHLS), and has been an AHLS instructor since 2003.

Robert D. Johnson, PhD

Chief Toxicologist, Tarrant County Medical Examiner's Office

no_avatar.jpgRobert Johnson, Ph.D., F-ABFT graduated from The University of Oklahoma with a Ph.D. in Analytical Chemistry in 2004. Dr. Johnson worked for the Federal Aviation Administration at the Civil Aerospace Medical Institute (CAMI) as a Research Chemist for 10 years. After achieving ABFT certification in 2011 he joined the Tarrant County Medical Examiner's office in Fort Worth, TX where he currently serves as the Chief Toxicologist. Dr. Johnson is active in several professional societies including the Society of Forensic Toxicologists, the American Academy of Forensic Sciences, the National Safety Council’s Alcohol, Drugs and Impairment Division, the Organization of Scientific Area Committee’s (OSAC) Forensic Toxicology Subcommittee, and the Southwestern Association of Toxicologists. He has published 60 scientific articles in his career all of which deal specifically with forensic toxicology and has presented at numerous meetings and workshops.

Jennifer A. King, JD

Partner, Burford & Ryburn, LLP

king.jpgJennifer A. King was named to D Magazine’s 2012, 2013, 2016, 2017, and 2018 Best Lawyers in Dallas List, and named to Texas Monthly's Super Lawyers list in 2018. She was named 2006, 2007, 2008, 2009, 2010, and 2011 Rising Star by Thomson Reuters and published in the April issues of Texas Monthly and Super Lawyers, Rising Stars Edition.

Jennifer represents and counsels clients on business and professional disputes in the area of Medical Malpractice and Health Law. She works with clients to avoid litigation and to seek ways to minimize litigation and resolve the dispute in a cost-effective and timely manner.

Jennifer works with health care clients on peer review, contract drafting and negotiations, EMTALA, and contract disputes. She has assisted General Counsel with Board and Committee meetings, and in investigations of sentinel events and unanticipated occurrences and outcomes. She also represents physician groups and hospitals in the areas of policies and procedures, indemnity issues, and medical malpractice. She has successfully defended hospital systems and physicians against a variety of claims, including toxicology cases, medical/surgical department cases, obstetric cases, surgery cases, emergency department cases, pediatric cases, transplant cases, and ICU cases. She is also a frequent speaker to hospital personnel and physician groups regarding avoiding litigation and best practices.

Kurt Kleinschmidt, MD

Professor of Emergency Medicine; Division Chief of Medical Toxicology, UT Southwestern Medical Center

Kleinschmidt.jpgKurt C. Kleinschmidt, MD, FACMT, FASAM is a Professor of Emergency Medicine at the University of Texas Southwestern Medical Center in Dallas, Texas. He is Chief of the Division of Medical Toxicology. His areas of interest include Substance Use Disorders and snake envenomations. He graduated from the University of South Florida College of Medicine in 1986, completed his emergency medicine residency at Madigan Army Medical Center in 1990, and finished a clinical fellowship in Medical Toxicology at the University of Texas Southwestern Medical Center in 1999. He is board certified in Emergency Medicine (1991), Medical Toxicology (2002), and Addiction Medicine (2015). He became the Medical Director of the Perinatal Intervention Program in Parkland Health and Hospital system in 2016. He served as the Toxicology Program Director from 2004-2018.

Barry Logan, PhD, F-ABFT

Sr. V/P of Forensic Science Initiatives, Chief Scientist, NMS Labs

Executive Director, Center for Forensic Science Research and Education (CFSRE) 

logan.jpgDr. Barry K. Logan is Sr. Vice President of Forensic Science Initiatives, Chief Scientist, at NMS Labs in Willow Grove, Pennsylvania, where his responsibilities include management of toxicology resources, new test design and development, and expert testimony in forensic toxicology and chemistry.

Dr. Logan is a Fellow of the American Board of Forensic Toxicologists (ABFT), and has over one hundred (100) publications and four hundred (400) presentations in forensic toxicology and analytical chemistry, including work on the effects of methamphetamine, cocaine and marijuana on drivers, drug caused and related death.

His recent work has focused on the analytical and interpretive toxicology of emerging recreational and designer drugs.

Dr. Logan’s other appointments include Executive Director of the Robert F. Borkenstein course at Indiana University, and Executive Director at the Center for Forensic Science Research and Education (CFSRE) at the Fredric Rieders Family Foundation in suburban Philadelphia. He holds academic appointments at Indiana University, Arcadia University and Thomas Jefferson University.

In recognition of his work and contributions, Dr. Logan has received numerous national and international awards, and in 2013-14 served as President of the American Academy of Forensic Sciences (AAFS).

Robert Middleberg, PhD, DABCC(TC), F-ABFT

Laboratory Director, NMS Labs

Middleberg.jpgRobert A. Middleberg is the Laboratory Director and Senior VP of Laboratory Operations and Quality Assurance at NMS Labs. He is a Diplomate of the American Board of Clinical Chemistry (D-ABCC-TC) and a Fellow of the American Board of Forensic Toxicology (F-ABFT), and currently sits on the Board of Directors of the ABFT and recently completed his tenure on the Board of Directors of ABCC. He served as Toxicology Section Chair within the American Academy of Forensic Sciences, and was Chair of the Scientific Working Group in Toxicology from its beginning to its end in 2014. He currently is a member of CAP’s Toxicology Resource Committee, and sits on the Toxicology Subcommittee within the NIST OSAC. In 2013, Dr. Middleberg was awarded the Rolla N. Harger Award by the Toxicology section of the American Academy of Forensic Sciences for his contributions to the field and profession of forensic toxicology.

Lewis S. Nelson, MD

Chair, Department of Emergency Medicine, Rutgers New Jersey Medical School

Nelson.jpgDr. Nelson is Professor and Chair of the Department of Emergency Medicine and Chief of the Division of Medical Toxicology at Rutgers New Jersey Medical School in Newark, NJ. He is board certified in emergency medicine, medical toxicology, and addiction medicine. He is a member of the Board of Directors of the American Board of Emergency Medicine and a Past-President of the American College of Medical Toxicology. He is actively involved with CDC, FDA, DHS, and with several professional medical organizations. Dr. Nelson is an editor of the textbook Goldfrank’s Toxicologic Emergencies and on the editorial boards of several journals. In addition to providing direct clinical care to patient in the ED and his efforts at New Jersey Poison Information & Education System, his areas of specific interest include the consequences of opioids, alternative (to opioid) pain management strategies, emerging drugs of abuse, and medication safety.

Jeanmarie Perrone, MD, FACMT

Professor of Emergency Medicine, Perelman School of Medicine at the University of Pennsylvania

Perrone.jpgDr. Jeanmarie Perrone is the Director of the Division of Medical Toxicology and a Professor of Emergency Medicine.   Her recent research and advocacy efforts are focused on addressing the impact of opioid prescribing on patients and the community. She has lectured nationally and internationally and published in the New England Journal of Medicine and JAMA on strategies to combat opioid misuse.   She has served on several pivotal FDA Drug Safety Advisory Committees and is now joining a new CDC effort to standardize prescribing rates for specific diagnoses.  She is currently leading the opioid stewardship initiative at the University of Pennsylvania including efforts to improve the warm handoff for patients with opioid use disorder seeking treatment in the Emergency Department. In 2015, she was inducted into Penn's Academy of Master Clinicians and has been the recipient of numerous awards for faculty teaching and mentorship. 

Erin A. Spargo, PhD, F-ABFT

Chief of Forensic Chemistry, Dallas County Southwestern Institute of Forensic Sciences

Spargo.jpgDr. Spargo is the Chief of Forensic Chemistry at the Southwestern Institute of Forensic Sciences (SWIFS) in Dallas. She oversees the Toxicology (postmortem, DWI/DUID, and DFSA), Breath Alcohol, and Controlled Substances sections of the Institute. She completed her undergraduate studies in forensic chemistry at Ohio University, where she graduated magna cum laude. She earned her doctoral degree in toxicology from the University of Maryland at Baltimore. Erin performed her graduate research at the National Institute of Drug Abuse where she was the lead associate investigator on a controlled MDMA administration study. Her research at NIDA has resulted in more than 15 publications.

Previously, Erin worked as an assistant toxicologist at the Office of the Chief Medical Examiner in Baltimore and as a forensic scientist at the Washington State Toxicology Laboratory. In 2008, she joined SWIFS as the Deputy Chief prior to being promoted to Chief in 2018. Erin also holds an appointed assistant professor position at the University of Texas Southwestern Medical School.

Dr. Spargo is a member of numerous professional organizations, including the Society of Forensic Toxicologists (SOFT) and the American Academy of Forensic Sciences (AAFS). She was a recipient of the Educational Research Award from SOFT and the June K. Jones and Irving Sunshine Awards from AAFS. She currently sits on the Board of Directors for SOFT where she also is the Awards Chair. She is a Fellow of the American Board of Forensic Toxicology and is a certified technical assessor for the ASCLD/LAB-International program.

Paul Wax, MD, FACMT

Executive Director, American College of Medical Toxicology

Wax_Paul.jpgDr. Wax is the Executive Director of the American College of Medical Toxicology. He received his B.A from Dartmouth College, his M.D. from the Mount Sinai School of Medicine, his Emergency Medicine training at the UCLA Hospitals, and his Medical Toxicology training at Bellevue Medicine Center / New York University. He is Board-certified in both Medical Toxicology and Emergency Medicine, and is a Fellow of the American College of Medical Toxicology.
Along with his part time role as the Executive Director of ACMT, Dr. Wax is a Clinical Professor in Surgery (Emergency Medicine) at the University of Texas, Southwestern School of Medicine where he is a member of the Section of Medical Toxicology and Director of the Medical Toxicology Clinic. Before joining ACMT in 2008 as its Executive Director, and the University of Texas Southwestern in 2006 as a part-time faculty member, Dr. Wax had faculty appointments in the Departments of Emergency Medicine at the University of Rochester School of Medicine from 1991-2001 and the University of Arizona School of Medicine from 2001-2006. Dr. Wax previously served on the Board of Directors of ACMT from 1998-2008 serving as ACMT President from 2006-2008. During this tenure he chaired the ACMT Education Committee from 1998-2002. From 2002-2006 Dr. Wax served as the National Director of ACMT's Consultation Network to support the ATSDR Regional Offices and was co-founder of ACMT’s Chemical Agent of Opportunity course. From 1997-2006 Dr. Wax also served as one of the American Board of Emergency Medicine’s appointee’s on the Medical Toxicology Subboard. During this time Dr. Wax served as Editor of the Medical Toxicology Board Certification Examination as well as Chairman of the Subboard, and was also the primary author of the 2004 Core Content of Medical Toxicology. Dr. Wax has also served as a consultant to the Centers for Disease Control NCEH’s Division of Laboratory Sciences and was a member of NCEH/ATSDR Board of Scientific Counselors from 2006-2008.  

Tim Wiegand, MD, FACMT

University of Rochester Medical Center

Wiegand_Timothy.jpgTim Wiegand MD, DABAM, FACMT, FAACT attended Iowa State University and graduated with Honors and Distinction in 1995. He received his MD from the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin in 2004. Dr. Wiegand completed a categorical Internal Medicine residency at Hennepin County Medical Center, Minneapolis, Minnesota and completed fellowship training in Medical Toxicology and Clinical Pharmacology at the University of California, San Francisco in 2006 and 2007 respectively. Dr. Wiegand also became Board Certified in Addiction Medicine in 2015. He was the Medical Director of the Rochester Poison Center until 2010 and currently serves as the Director of Toxicology and of the Toxicology Consult Service at the University of Rochester Medical Center. Dr. Wiegand is an Associate Clinical Professor in the Department of Emergency Medicine at URMC and also a volunteer faculty member of the SUNY Upstate Medical Toxicology Fellowship program. Dr. Wiegand's research interests include billing, reimbursement and effectiveness of Medical Toxicology practice models, warning signs for suicide attempt in particular the use and involvement of alcohol or drugs in a suicide attempt and he is involved with wide variety of surveillance and research projects involving the bedside toxicology Registry the ACMT Toxic Case Registry.