James A Greer, CPCT


Stephanie Calderon, CPCT

Operations Manager

Dr. David Nahin

Chief Medical Review Officer


David Bonci

Business Development Manager

Brandon Rains

Technology Manager

Melissa Guzman, CPC

Supervisor/DOT Specialist

Dr. Stephen Kracht

Medical Review Officer


Client Services

Cristina Ferrara, CPC

Collection Specialist

Lorraine Perez, CPC

Collection Specialist

Michelle Ferrer, CPC

Results Coordinator

Lacee Thompson, CPC

Collection Specialist

Kaela Sculthorpe, CPC

Collection Specialist

Health Screenings USA is proud of the training and certifications which all of our staff completes and we hold various industry accreditations for drug, alcohol and DNA testing including DOT and NON-DOT Certified Professional Collector certification and DOT Certified Professional Collector Trainer Accreditation. With over 20 years of experience in the drug testing industry, the entire staff of Health Screenings USA is ready to serve the needs of our customers.

“One Call Does It All”


Health Screenings USA