Donn Adams

Security Intelligence Specialist – Enterprise Security Operations, Mayo Clinic

Donn Adams

Donn Adams is a Security Specialist for Mayo Clinic assigned to Enterprise Security Operations. Mr. Adams is involved with the Workplace Violence Prevention and Mitigation Committee. Mr. Adams is providing support to Mayo of the Midwest for Threat Assessments related to violence in the workplace. He was also involved in the development of the Mayo Clinic Workplace Violence Work Flow and is responsible for training the Mayo Clinic Enterprise Physical Security Staff in this process. Mr. Adams is CPI certified through ASIS (Certified Professional Investigator). He was a Police Officer for over 31 years with the Eau Claire, WI Police Department. Along with several different roles, he was a General Crimes Investigator for 12 years.

Amy E. Alexander, MS

Senior Biomedical Engineer – Radiology Anatomic Modeling Lab, Mayo Clinic


Amy Alexander is a Senior Biomedical Engineer in the Mayo Clinic Department of Radiology’s Anatomic Modeling Lab in Rochester, Minn. In her role, Amy converts 2-D radiological images into 3-D models and patient-specific surgical cutting guides. These life-size, patient-specific models and guides help surgeons from different specialties prepare for complex procedures. Additionally, these 3D prints form a communication bridge for patients regarding their personal surgical plan. Amy holds a Bachelor of Science in Biomedical Engineering from the Milwaukee School of Engineering (MSOE) and a Master of Science in Engineering Management from MSOE’s Rader School of Business. She is a member and subcommittee chair of engineering and technician education for both the SME Medical 3D Printing Workgroup and the Radiological Society of North America’s 3D Printing in Medicine Special Interest Group, and is certified in Additive Manufacturing through SME. She is an active member of MSOE’s BME Industry Advisory Committee, BMES, RSNA, HIMSS, and SME.

John Baker, CIH, MS, MBA, FAIHA

Principal Consultant, BSI EHS Services and Solutions


John Baker, CIH has over 40 years of professional environmental health and safety experience, with expertise in advising, developing and auditing environmental health and safety regulatory compliance and management systems, and designing and conducting risk based quantitative and qualitative exposure programs, particularly focused on advanced materials including nanomaterials and advanced manufacturing methods. A strong professional interest is the classification of chemical and physical hazards aligned with the UNECE Globally Harmonized System and hazard communication with regard to advanced materials. John provides mentoring and developmental support to early and mid-career industrial hygienists and product stewards.

John is an active leader in the AIHA –currently Nanotechnology Working Group Chair, and elected a Fellow of the AIHA in 2017.

Dr. Della Derscheid

Nurse Scientist – Division of Nursing Research Mayo Clinic


Dr. Della Derscheid is a Nurse Scientist for Mayo Clinic Division of Nursing Research. Dr. Derscheid has previous experience as a Clinical Nurse Specialist with inpatient psychiatry and the Behavior Emergency Response Team. She is a member of the Mayo Clinic Violence Prevention and Mitigation Committee and conducts research on violent patient situations in healthcare. Dr. Derscheid has been employed at Mayo Clinic for 21 years. She holds a Master of Science degree in Public Health and Psychiatric Mental Health Nursing and a PhD in Nursing. She is certified as a Mayo Quality Fellow at the silver level. Dr. Derscheid has presented nationally and internationally on issues and her research surrounding workplace violence in healthcare.

Heidi A. Edmonson, Ph.D., MRSO (MRSCTM), MRSE (MRSCTM)

Assistant Professor of Medical Physics, Mayo Clinic


Dr. Heidi Edmonson is a medical physicist with special expertise in MRI safety, collaborating with radiologists and MR technologists within the Department of Radiology at Mayo Clinic in Rochester, MN.

Dr. Edmonson earned her Ph.D. at Mayo Graduate School prior to her industry experience working as a Senior Scientist at GE Healthcare Applied Science Lab. Returning to Mayo Clinic as a staff medical physicist, she is now board certified in Diagnostic Medical Physics by the American Board of Radiology, and as a Magnetic Resonance Safety Officer (MRSO) and Safety Expert (MRSE) by the American Board of Magnetic Resonance Safety.

Dr. Edmonson serves primarily in a clinical capacity, overseeing patient care for patients with implanted devices within the MRI environment, and serving on multiple quality, safety, and accreditation committees within the department. Her volunteer activities include economics and quality committee roles with the American College of Radiology, the Executive Board of the Minnesota Radiological Society, Vice-Chair of the MR Safety Workgroup for the American Association of Physicists in Medicine, and as the current Vice-Chair of the American Board of Magnetic Resonance Safety.

Carl D. Freyholtz, MEHS, CSP

Safety Coordinator, Mayo Clinic

Carl D. Freyholtz

Carl Freyholtz is a Safety Coordinator at Mayo Clinic, Rochester, MN. Carl is a Certified Safety Professional (CSP), and a member of the American Society of Safety Professionals. He received a B.S. degree in Biology and a Master of Environmental Health and Safety from the University of Minnesota-Duluth. Carl specializes as a consultant to clinical and research laboratories supporting joint labor-management safety committees. Having knowledge and experience in information technology, he has successfully led information technology programs for safety and incident investigation initiatives. Prior to Mayo Clinic, Carl worked as a safety consultant in the electronic components manufacturing industry. He has over a decade of volunteer fire fighter experience, serving as safety officer and trainer/educator. Carl also served nine years in the Minnesota Army National Guard as a Chemical Operations Specialist.

Brett Gordon, PE, MBA

Section Head of Utility Operations, Energy Management, Systems and Infrastructure Engineering, Compliance/Information Management and Networked Infrastructure Systems Support, Mayo Clinic

Brett Gordon

Brett Gorden is the Section Head of Utility Operations, Energy Management, Systems and Infrastructure Engineering, Compliance/Information Management and Networked Infrastructure Systems Support within the Division of Facilities Operations at Mayo Clinic in Rochester, MN. Brett holds an MBA from the University of South Dakota, a Bachelor of Science degree in mechanical engineering from South Dakota State University, and is a licensed professional engineer in the State of Minnesota. Prior to joining Mayo Clinic, Brett worked in the engineering consulting industry designing HVAC, plumbing, and fire protection systems for buildings and campus energy systems.

Tera L. Gross, DNP, RN, NE-BC

Nurse Administrator in the Department of Nursing, Mayo Clinic

Tera L. Gross

Tera L. Gross DNP, RN, NE-BC, is a Nurse Administrator in the Department of Nursing. She has worked at Mayo Clinic for 17 years and has held various positions, including staff registered nurse and nurse manager. As a Nurse Administrator, she provides nursing leadership in both inpatient and ambulatory areas, including the Complex Intervention Unit (CIU). Tera has presented nationally on the care of the aggressive or violent patient. Tera is an Instructor of Nursing in the Mayo Clinic College of Medicine, has participated in multiple multidisciplinary quality improvement projects and holds a Gold Certification from the Mayo Quality Fellows Program.

Patricia J. Hlavka, MS, CSP

Safety Coordinator – Department of Laboratory Medicine and Pathology, Mayo Clinic


Pat Hlavka is a Safety Coordinator in the Department of Laboratory Medicine and Pathology at Mayo Clinic, Rochester, MN. She received a B.S. degree in Chemistry from the University of Wisconsin-Eau Claire and an M.S. degree in Safety from the University of Wisconsin-Stout. She is a Certified Safety Professional (CSP) and a member of the American Society of Safety Professionals. Pat worked as a safety professional in the industrial setting (IBM and Benchmark Electronics) for over 15 years. Since joining the Mayo Clinic in 2008, her responsibilities have focused on clinical laboratory safety including the safety audit program, developing and maintaining documentation, training, communications, awareness, incident investigation, laboratory safety committees, and emergency management.

Ernie Holeyfield

Security Supervisor – Security Operations, Mayo Clinic

Ernie Holeyfield

Ernie Holeyfield is a Security Supervisor for Mayo Clinic Rochester Security Operations. He has worked in Security Operations for 24 years and served as a Security Supervisor for 20 years. He is a member of the International Association for Healthcare Security & Safety and the American Society for Industrial Security International. Mr. Holeyfield holds a Bachelor of Arts Degree from Evangel University and a Bachelor of Science in Business Management from Cardinal Stritch University. He served 4 years active duty in the US Navy.

Amanda Holloway

Director, Office of Sustainability, Mayo Clinic

Amanda Holloway

Amanda Holloway is the Director for Mayo Clinic’s newly formed Office of Sustainability and has been employed with Mayo Clinic for 17 years. Amanda has held roles as Recycling Coordinator and Section Head in Facilities Operations (overseeing the Section of Waste Management, Recycling and Environmental Services). In her current sustainability role, Amanda is guiding enterprise sustainability planning and strategy across the organization to advance organizational goals in energy and waste reduction, water conservation, supply chain practices, the built environment and employee engagement. Amanda also represents Mayo Clinic in HEARRT Midwest (Healthcare Environmental Awareness and Resource Reduction Team), a professional organization that connects healthcare professionals to encourage and support sustainability actions that improve environmental and community health, and reduce costs.

Tamara James, MA, CPE, CSPHP

Ergonomics Division Director, Duke University and Health System

Tamara James

Ms. Tamara James is the Ergonomics Division Director at Duke University and Health System. The Division is responsible for hazard evaluation and training of over forty-five thousand employees involved in every aspect of a medical and teaching institution. Ms. James is a certified professional ergonomist and a certified safe patient handling professional who received a master’s degree in Human Factors Engineering from George Mason University in Virginia. Her bachelor’s degree is in Industrial Engineering from the University of Iowa.

Ms. James is a faculty member (Assistant Professor) in Community and Family Medicine. She started the ergonomics program at Duke over 25 years ago and developed and implemented Duke’s safe patient handling (SPH) program nearly 15 years ago.

Jackie Johnson-Howell

Patient Safety Program Manager – Quality Management, Mayo Clinic

Jackie Johnson-Howell

Jackie Johnson-Howell is a Patient Safety Program Manager for Mayo Clinic Quality Management. Ms. Johnson-Howell has previous experience as a staff nurse and nurse manager. She is a member of the Patient Safety Management Team and coordinates patient safety activities for Mayo Clinic Heath System. Ms. Johnson-Howell has been employed at Mayo Clinic for 31 years. She holds a Bachelor’s degree in nursing and Master of Arts Degrees in Management and Nursing. She is certified as a Mayo Quality Fellow at the gold level. She has received training through the Institute for Healthcare Improvement’s Patient Safety Executive Development Program. Ms. Johnson-Howell has presented nationally and internationally on patient safety and nursing topics.

Rachel Michael, M.S., CPE, CHSP

Principal Consultant, BSI EHS Services and Solutions


Rachel brings over 18 years of experience in developing ergonomics and injury prevention strategies and solutions across a wide range of industries. She is both knowledgeable and passionate about systems improvement — the key to effective, sustainable injury reduction — leveraging the capabilities, limitations and characteristics of their human components for safe, productive and efficient outcomes. For the past 13 years, Rachel has worked to reduce risk and improve productivity with clients of global insurance brokers Aon and Marsh and McLennan. In 2017, she was the President of the Board of Directors for the Board of Certification in Professional Ergonomics (BCPE). She has also been a technical writer for OSHA and ergonomics related publications and is actively involved in the ASSE Ergonomics Practice Specialty as well as with the National Ergonomics Conference.

Benjamin Mills

Pharmaceutical Technical Lead, BSI EHS Services and Solutions

Benjamin Mills

With over twenty years experience in Biopharmaceutical manufacturing, Benjamin utilizes a deep knowledge of compliance in pharmaceutical manufacturing as a GMP consultant for BSI. Focusing on Quality, staged across all aspects of manufacturing from material receipt and disposition to managing Quality Management Systems and presenting to regulators, Benjamin’s experience provides a thorough Quality perspective.

Benjamin has experience facilitating staff from the production floor to executive management in both learning/development and business meeting situations. Additionally, Benjamin has developed and delivered multiple-day workshops designed to improve quality system management and workplace skills.

Jeffrey C. Nesbitt, MS, CSP, CIH

Supervisor, Industrial Hygiene / Assistant Professor of Preventative Medicine, Mayo Clinic / Mayo Clinic College of Medicine


Jeff is the supervisor of Industrial Hygiene at Mayo Clinic and an Assistant Professor in Preventive Medicine in the Mayo Clinic College of Medicine. Jeff is a Certified Industrial Hygienist and Certified Safety Professional. He is actively involved in various groups within the American Industrial Hygiene Association (AIHA) and the American Society of Safety Engineers (ASSE). Jeff is currently Vice Chair of the AIHA Healthcare Working Group and past administrator of the ASSE Industrial Hygiene Practice Specialty.

Allison Papenfuss

Safety Coordinator, Mayo Clinic Health System – Southwest Wisconsin

Allison Papenfuss

Allison Papenfuss has been employee with Mayo Clinic for over 8 years. Upon completion of her bachelor’s degree from St. Mary’s University in Winona, MN, Allison began work at Mayo Clinic Rochester for the Cytogenetics Laboratory. There she specialized in Fluoresence in situ hybridization for pediatric and adult cancers; while in the role she gained interest in laboratory safety. In 2014, Allison transitioned to Mayo Clinic Health System – Southwest Wisconsin to support the Environmental and Occupational Safety team as a Safety Coordinator. Allison is currently working to obtain her Master’s Degree in Industrial Hygiene from Montana Tech.

Russel Sinor, CIH

Industrial Hygienist, Mayo Clinic

Russel Sinor

Russel Sinor is an Industrial Hygienist at Mayo Clinic in Rochester, MN. Prior to joining Mayo Clinic in 2018, he spent 21 years in the technology sector where he held various technical, management system, and strategy roles at the local and global level. He is a Certified Industrial Hygienist and a Certified Safety Professional. He holds a BS in Fire Protection and Safety from Oklahoma State University and a MS in Industrial Hygiene from University of Oklahoma Health Sciences Center.

Lawrence W. Steinkraus, M.D., M.P.H.

Consultant, Division of Preventive, Occupational, and Aerospace Medicine; Chief, Aerospace Medicine; Assistant Professor of Preventive Medicine, Mayo Clinic


Dr. Lawrence Steinkraus serves as a consultant with the Division of Preventive, Occupational, and Aerospace Medicine in the Department of Medicine at the Mayo Clinic in Rochester Minnesota. He is the Chief of the Aerospace Medicine Section.

He received his medical degree from the Medical College of Virginia and his Masters in Public Health from the University of Iowa School of Public Health. He is board certified in Aerospace, Occupational, Hyperbaric, and Family Medicine and has a Certificate of Added Qualification in Geriatrics. His clinical practice is primarily focused on aeromedical and occupational problems. His research activities include studying use of simulation in education and advanced aeromedical cognitive and physiologic monitoring projects.

Dr. Steinkraus served in the US Public Health Service and the US Air Force, including two command tours. He retired from the USAF in 2016 as a Colonel. His last assignment was with the office of the Air Force Surgeon General working with the Chief of Aerospace Medicine at DHHQ in Falls Church, Virginia. He is a 2003 graduate of the USAF Resident in Aerospace Medicine program. He is also a senior AME and HIMS AME for the FAA. As an AF flight surgeon he flew over 140 combat hours in Southwest Asia and served as Theater Validating Flight Surgeon in 2007.

Nikki Thome

Biosafety Officer, Mayo Clinic

Nikki Thome

Nikki Thome is an accomplished safety professional with multifaceted experience in biological safety program management, administrative services, laboratory design, and biosecurity. She studied Chemistry, Biochemistry and Industrial Hygiene at the University of Minnesota prior to beginning her professional career at the Mayo Clinic. For the past 10 years, she has served as the Biosafety Officer (BSO), Secretary of the Institutional Biosafety Committee (IBC), and Responsible Official (RO) at each of Mayo Clinic’s United States research locations where she focuses on the identification and analysis of biological hazards followed by the application of systems-based remedial controls. The latter notably seen by her leadership during the development and launch of an electronic hazardous material registration system that provides a holistic laboratory risk overview by removing the silos that surround different types of hazardous materials. Viewing safety initiatives as a product that can be successfully delivered and then applying quality improvement methodologies to the biosafety program, she has increased the efficiency of the Biosafety Office which reinforces the culture of research safety through enhanced staff engagement. Additionally, she is a member of the Institutional Animal Care and Use Committee, Research Safety Committee, Hazardous Chemical Management Committee, and liaison to the Institutional Review Board.

Pritish K. Tosh, M.D.

Infectious Diseases Physician; Medical Director for Emergency Management, Mayo Clinic

Pritish Tosh

Pritish K. Tosh, MD is an infectious diseases physician and the medical director for Emergency Management at Mayo Clinic in Rochester, MN. His prior training includes the Epidemic Intelligence Service at the Centers for Disease Control and Prevention (CDC) and as a fellow with the Center for Infectious Diseases Research and Policy (CIDRAP) at the University of Minnesota. He is involved in preparedness activities on a local, regional, and national level, including the American College of Chest Physicians (ACCP) Task Force on Mass Critical Care a, the Society for Healthcare Epidemiology of America (SHEA)/CDC Outbreak Response Training Program and the external advisory group for NYC Health+Hospitals.

Kyle Underwood

Health Physicist, Mayo Clinic Rochester

Kyle Underwood

Kyle Underwood is a health physicist at Mayo Clinic Rochester who specializes in radiation oncology, nuclear medicine, radiological response, and source security. He has a Master’s degree in Health Physics from Purdue University and has been employed at Mayo Clinic for 4 years.


Nancy L. Wengenack, Ph.D.

Consultant, Division of Clinical Microbiology; Director of the Mycology and Mycobacteriology; Professor, Laboratory Medicine and Pathology and Microbiology, Mayo Clinic


Nancy L. Wengenack, Ph.D. is a consultant in the Division of Clinical Microbiology at the Mayo Clinic in Rochester, Minnesota where she is the Director of the Mycology and Mycobacteriology laboratories and holds the rank of Professor of Laboratory Medicine and Pathology and Microbiology. Dr. Wengenack is certified in Medical and Public Health Microbiology by the American Board of Medical Microbiology, is a Fellow of the Infectious Diseases Society of America, and is also a Fellow of the American Academy of Microbiology. She has an interest in laboratory safety and currently chairs the Mayo Clinic Institutional Biosafety Committee and the Hazardous Chemical Management Committee.

Bob Williamson, MS, RN, CHSP, CSPHPH

Clinical Director, Care Excellence Ascension

Bob Williamson

Bob is a Clinical Director in Care Excellence for Ascension Healthcare. He provides leadership in the development and delivery of clinical programs that support the health ministries at Ascension. He has recently led the design and facilitated the education of advancing high reliability and performance improvement to over 6,000 leaders and physicians. During his career he has served in leadership roles in a variety of areas including acute care, post-acute care, workers’ compensation, occupational health, safety, and risk management. He has participated in national and international initiatives to reduce caregiver injuries related to needlesticks and sharps exposures, patient mobilization injuries and the prevention of workplace violence.

Bob graduated from Saginaw Valley State University, obtaining a RN, BSN and at Central Michigan University with a Master of Science in Healthcare Administration.

Environmental, Health & Safety Symposium for Healthcare