About

A Team to Stand With You in a Crisis

For more than 15 years, we have been providing high-value, medically-based counsel and solutions to our clients on a vast array of national and community occupational, environmental health and building science issues. This frequently includes an associated assessment, diagnosis and sampling of the properties, buildings or environments where our clients work or live.

Protecting your People, your Property and your Purpose.

Hung K. Cheung, MD, MPH, FACOEM (Founder and President)

As one of the nation’s foremost experts in his field, Dr. Cheung has led hundreds of environmental and toxicological investigations, saving organizations millions of dollars and protecting thousands of their stakeholders. Read More >>

Charles M. Yarborough, MD, MPH, FACOEM (Senior Physician Consultant/Medical Epidemiologist)

Dr. Yarborough’s more than three decades of training and experience spans a wide range of organizations, roles and issues. Read More >>

Robert C. Blink, MD, MPH, FACOEM (Director of Occupational Services & Injury Care Management)

For more than 25 years, Dr. Blink has been helping organizations prevent and treat occupational injuries of all kinds. Not only does he consult with employers, unions and governments nationwide, he also evaluates and treats individuals. Read More >>

Paul Rockswold, MD, MPH (Director of Epidemiology and Public Health)

Dr. Rockswold’s expertise in coordinating preventive medicine and health promotions for large populations won him the “Rising Star Award” from the American College of Preventive Medicine. Read More >>

Michelle J. Fransen, MPH (Project Manager/Senior Environmental & Technical Specialist)

Ms. Fransen conducts site investigations, exposure assessments and causation analyses on environment issues ranging from lead and Legionella to mold and chlorine. She is responsible for the beginning-to-resolution management of projects. Read More >>

Susan Peterson, BSN, RN (Director of Medical Services)

As a registered nurse, Ms. Peterson coordinates occupational evaluations, consults, manages projects and oversees a team nurses on those projects. Read More >>

Allan Burt, MBA, LEED AP BD+C (Director of Building Science/Legionella/Waterborne Pathogens Divisions)

Mr. Burt has over 40 years of mechanical, plumbing and building science experience. Read More >>

Jennifer C. O’Donnell, CHES (Health Educator/Research Analyst)

Ms. O’Donnell researches and analyzes a wide expanse of topics to ensure that the most current research is used during every project. Read More >>

Eric Shapiro, CIEC, CMC, CMRS (Certified Indoor Environmental Consultant)

For more than 25 years, Mr. Shapiro has been a Certified Indoor Environmental Consultant conducting Indoor Air Testing, Remediation, Diagnostics, Building Science and Moisture Control investigations. Read More >>