Meet The Team

Our dedicated team includes a distinguished published lab director with an MD, PhD, and over 20 years molecular lab leadership, a practicing MD with an MBA and JD on staff and as principal, and an administrator with multiple prior commercial lab establishments and ownership. Together, we are pioneering the future of chronic wound care.

  • Greg Green

    CO-FOUNDER AND CEO

    Seasoned executive with a proven track record in leading medical organizations and driving growth through strategic direction and operational excellence. Specializes in increasing efficiencies, expanding market share, and enhancing profitability while controlling costs. Recognized for strong leadership in complex environments and a solid foundation in analytics and operations.

  • Mark Williams

    CO-FOUNDER AND CHIEF MEDICAL OFFICER

    Dr. Mark Williams is a highly respected figure in both medicine and organizational leadership. Dr. Williams is the Medical Director and a founding member of PMx Labs. In addition to his medical practice, he holds a law degree from the University of Alabama and an MBA.  He was Chief Clinical and Academic Officer for Palmetto Health System, the largest health system in South Carolina, overseeing nearly 4,000 physicians and managing a $4 billion revenue operation. He was interim CEO and Chief Medical Officer at North Mississippi Health Services, the largest non-metropolitan hospital in the United States, and Chief Physician Officer at Bozeman Health in Montana. In Birmingham, AL, he served as Chief Physician Executive at Brookwood Baptist Health and as Chief Medical Officer of St. Vincent’s Health System

  • Vincenzo Guracello

    CO-FOUNDER AND LEAD SCIENTIST

    An accomplished scientist and scholar in the fields of Genomic Medicine, Clinical Pharmacology, Neurobiology, Biochemistry, and Oral Physiopathology. He holds U.S. and International patents. Dr. Guarcello has a diverse postdoctoral training background, including fellowships at New York University and the University of Alabama at Birmingham (UAB). His academic positions at UAB spanned from Instructor to Assistant Professor in Clinical Pharmacology.  Later, he served as Co-Founder and Laboratory Director at two successful Birmingham, AL clinical laboratories. Dr. Guarcello has numerous publications in neurobiology, endocrinology, and immunopharmacology, contributing significantly to scientific research with studies on bromperidol, calcitonin, phosphatidylserine, and various immunomodulatory agents. His work includes notable patents in the fields of toxoplasmosis treatment and ubiquitin-protease pathway modulation.