Academic Expertise

RMPDS has been providing expert medical advice to the public and private sectors for over 60 years. During that time we’ve become well-established as one of the largest poison centers in America and a leader in toxicity, injury and disease research. We provide medical information & fulfillment, drug safety reporting and abuse surveillance services to some of the largest pharma companies in the world. We also have blazed a trail in antidote development and have managed many multi-center clinical trial programs for both orphan drug companies and major pharmaceutical corporations.

All this expertise adds up to one valuable offering to our clients: Peace of Mind. We aim to be the best in medical information, case management, safety reporting/pharmacovigilance, toxicology research and poison control. It’s better for consumers. It’s better for our clients. And it’s better for you.


Our Leadership

RMPDS is managed by a team of physicians, scientists, clinicians and academics that our clients rely upon and trust.


Richard C Dart, MD, PhD – Director 
Richard C Dart, MD, PhD – Director


Dr. Dart is a physician specializing in emergency medicine and toxicology. Since 1992, he has served as the Director of RMPDS.  He provides executive oversight for all operations of RMPDS, including the Poison Center, Drug Safety, NurseLine and Research & Consulting. Dr. Dart also is the Executive Director of Researched Abuse, Diversion, and Addiction-Related Surveillance (RADARS®) System – a premier network for monitoring prescription opioid and stimulant abuse, whose data assists pharmaceutical companies in fulfillment of their regulatory obligations such as risk evaluation and mitigation strategies (REMS). Dr. Dart has much experience in drug safety surveillance efforts; specifically in characterizing and monitoring the safety of pediatric cough & cold products, over-the-counter analgesics and laundry unit dosage products (pods). Dr. Dart has published more than 250 papers and chapters as well as served as editor for the book The 5-Minute Toxicology Consult and the 3rd edition of Medical Toxicology.  In 2002, he was recognized with a special citation from the Commissioner of the U.S. Food and Drug Administration.  He was the 2004 recipient of the American College of Medical Toxicology Matthew J. Ellenhorn Award for Excellence in Medical Toxicology.  He is the 2017 recipient of the AACT Career Achievement Award. He also serves as a Deputy Editor of the medical journal Annals of Emergency Medicine and is past-president of the American Association of Poison Control Centers. 


Gregory M Bogdan, PhD – Administrative Director 
Gregory M Bogdan, PhD – Administrative Director


Dr. Bogdan is the Administrative Director for RMPDS – having operational responsibility for RMPDS’s Poison Center, Drug Safety, NurseLine and support services departments. He has been with RMPDS since 1995 and involved on projects in analgesics toxicity, antidote development, medical call center utilization, drug safety research and prescription drug abuse monitoring – such as the Researched Abuse, Diversion and Addiction-Related Surveillance (RADARS®) System. Dr. Bogdan has been awarded three Agency for Healthcare Research & Quality (AHRQ) task orders to develop models for utilizing medical call centers to respond to public health emergencies. Dr. Bogdan is a member of the American Association of Poison Control Centers and the Colorado Public Health Association (served as president 2005-2006).  He has been an advisor to the Centers for Disease Control and Prevention regarding the use of Nurse Triage Lines for pandemic influenza response. He is the lead or contributing author on over 40 peer-reviewed publications while at RMPDS.


Christopher Hoyte, MD – Fellowship Director & Assistant Medical Director Poison Center 
Christopher Hoyte, MD – Fellowship Director & Assistant Medical Director Poison Center


Dr. Christopher Hoyte is the Fellowship Director of the medical toxicology fellowship program at the Rocky Mountain Poison and Drug Safety. He is also the Associate Medical Director of the Poison Center. He sits on the Board of Directors for the American Academy of Clinical Toxicology and is an Assistant Professor at the University of Colorado School of Medicine in the Department of Emergency Medicine and the Section of Medical Toxicology. Dr. Hoyte has published several book chapters in both emergency medicine and medical toxicology textbooks, as well as multiple peer-reviewed scientific manuscripts. He currently serves as the Medical Director of the Medical Toxicology Clinic at the University of Colorado Hospital. Dr. Hoyte attended Princeton University receiving his undergraduate degree in molecular biology and then attended NYU School of Medicine where he received his doctorate of medicine. He completed his medical toxicology fellowship at the Rocky Mountain Poison and Drug Safety in Denver, Colorado.  


Janetta Iwanicki, MD – Medical Director NurseLine & Assistant Medical Director Poison Center 
Janetta Iwanicki, MD – Medical Director NurseLine & Assistant Medical Director Poison Center


Dr. Iwanicki is a physician specializing in medical toxicology and emergency medicine. Dr. Iwanicki is a board-certified physician with certifications from the American Board of Emergency Medicine and the American Board of Medical Toxicology. She has served as the Associate Medical Director for the Rocky Mountain Poison Center since 2015, is an Assistant Professor in Emergency Medicine with University of Colorado School of Medicine, and is a faculty member in Emergency Medicine at Denver Health and Hospital and Medical Toxicology at Rocky Mountain Poison and Drug Safety. She has published several book chapters in both emergency medicine and medical toxicology textbooks, as well as multiple peer-reviewed scientific manuscripts. She is an active member of the American College of Medical Toxicology, American Academy of Clinical Toxicology, and American College of Emergency Medicine.


Shireen Banerji, PharmD – Clinical Toxicology Manager


Dr. Banerji attended University of Texas at Austin and received her PharmD in 1996. She then completed a pharmacy practice residency at University of California San Francisco (UCSF) from 1996-1997. She began her career as a pharmacist in the setting of clinical pharmacy at a busy Chicago academic hospital; specifically as a critical care pharmacist in the areas of neurosurgery, neurology, cardiology critical care units. She entered the poison center world in 1999 at the California Poison Control System in San Francisco and quickly became certified as a Specialist in Poison Information (CSPI) where she stayed in San Francisco until 2001. She relocated to Denver, Colorado at that time, and begun employment at RMPDS as a full-time CSPI. In 2003 she passed the American Board of Applied Toxicology exam (ABAT) and was promoted to Clinical Toxicology Coordinator and in charge of poison center education and training of new SPIs. Working closely with the RMPC Medical Director, Shireen has given over 15 presentations to health care professionals, and has authored 37 poster or platform presentations, and over 14 publications. She is currently in charge of all educational aspects for ongoing and new staff. She is a Colorado Preceptor for pharmacy students from 4 different pharmacy schools, and numerous PGY1 and PGY2 pharmacist residency programs. She works closely with the RMPC Fellowship Director in the area of medical toxicology fellow and rotator education. She holds faculty appointments with University of Colorado School of Pharmacy, University of Wyoming SOP, Creighton University SOP, and Regis University SOP. Committee involvement includes membership on AAPCC, AACT, ABAT, SEOW (State Epidemiology Outcomes Workgroup), and the Colorado Retail Marijuana Public Health Advisory Committee (RMPHAC). Together with the RMPC Operations Manager, Shireen is an active leader of the RMPC.


John Schwarz, PhD – Director of Biostatistics


Dr. Schwarz currently serves as the Director of Biostatistics for the Rocky Mountain Poison & Drug Safety. His team supports the RADARS® System programs through biostatistics, data management and scientific development. The team is responsible for designing and maintaining databases, drafting and reviewing study protocols and statistical analysis plans, providing analysis or consultation on analysis of the RADARS® System data, and advising the direction of data collection systems.
Dr. Schwarz received his PhD from the University of North Carolina at Chapel Hill in biostatistics. His focus was on methodology related to genetics and epidemiology. While completing his degree, he worked with a private company that supported several NIH funded epidemiologic studies related to various health outcomes measuring different biomarkers as well as industry initiated pharmacological clinical trials. 
After receiving his PhD, Dr. Schwarz went on to lead analytic teams in improving complex data collection methods, advanced analytics, and exploratory analysis in the biotech field, ultimately improving product performance. These teams helped reduce testing time in products, improved selection criteria in advancement and supported a large organizational effort in standardizing analytic practices.
Dr. Schwarz joined Rocky Mountain Poison & Drug Safety in 2016, initially leading a team specifically supporting the RADARS® System.  He was recently promoted to Director of Biostatistics, assuming responsibilities across the organization.