Meet Our Clinical Team
Life Line Screening prides itself on providing accurate and clinically relevant health information to our customers. We have a dedicated team of healthcare providers with excellent credentials. The Clinical Management Team works hard to ensure the highest level of quality control throughout our process. Our board-certified, licensed Reviewing Physicians then review the results before they are sent to participants.
Clinical Management Team
Kevin S. DeWeese, RDCS, RVS
Director of Clinical Operations at Life Line Screening
Registered Vascular Specialist with extensive experience managing accredited Vascular Ultrasound Laboratories in Texas
Registered Diagnostic Cardiac Sonographer
Bachelors of Science in Biology from the Ohio State University
Associates of Cardiovascular Diagnostic Medical Sonography from Central Ohio Technical College
Nathalie Garbani, Ed.D., RVT
Manager of Clinical Quality and Training
Doctorate of Education (Health Care Education) from Nova Southeastern University, Davie, Florida
Master of Science (Clinical Laboratory Science) from the University of Massachusetts, Lowell
Bachelor of Science (Biology) from Emmanuel College, Boston, Massachusetts
Registered Vascular Technologist with ARDMS since 1994
Alma S. Alfonzo, MBA, ASCP, CLS
Laboratory Manager
Registered Medical Technologist by the American Society of Clinical Pathology and Clinical Laboratory Science
Masters in Business Administration from Baldwin Wallace College
Regional Clinical Managers
Betty Layton, AS, RN, RVT
Lori Yanousek, RVT
Danny Deliz, RDMS, RVT
Shelley Colyer, RDMS, RVT
Reviewing Physicians
Andrew Manganaro, MD, FACC, FACS
Chief Medical Officer, Life Line Screening
Current positions: Governing Board of the Kettering Cardiovascular Institute of Kettering Medical Center
Education: BA from Fordham University; MD from New York University School of Medicine
William M. Blackshear, Jr., MD
Current positions: Attending surgeon at Tampa General Hospital, Suncoast Hospital, Northside Hospital in Florida
Education: BS in Chemistry from Duke University; MD from Tulane University School of Medicine
Professional organizations: American Board of Surgery, National Board of Medical Examiners, Louisiana State Board of Medical Examiners
Phillip Charles Corcoran MD
Current positions: Cardiothoracic Surgeon at Suburban Hospital
Education: Georgetown University School of Medicine
Devin Friedlander MD
Years practicing: Joined Life Line Screening July 2012
Current positions: Board Certified Neurologist in Somerset NJ
Education: Robert Wood Johnson Medical School, Piscataway NJ
Glenn Pierce Gardner, MD, RVT, FACS
Current positions: Practitioner with the University of Missouri Health Care in the Department of Surgery; Board-certified in both general surgery and vascular surgery
Education: BA in Biology; MD from Indiana University
Professional organizations: Society for Vascular Surgery, American Association for Vascular Surgery, Midwestern Vascular Surgery Society, Peripheral Vascular Surgical Society
Sheridan T. Gibler, MD, MRO
Current positions: Board Certified Cardiologist
Education: University of Texas, Southwestern Medical School
Professional organizations: Associate Member – American College of Cardiology
Guy G. Lemire, MD, FRCS (C), FACS (THOR)
Current positions: Surgeon/Staff Member of Long Beach Memorial Medical Center, Orange Coast Memorial Medical Center, Los Alamitos Medical Center, Lakewood Regional Medical Center, Enloe Hospital, Shasta Regional Medical Center
Education: MD from Laval University, Post-graduate at University of Toronto and McGill University
Professional organizations: Royal College of Physicians and Surgeons of Canada, American College of Surgeons, California Medical Association, Society of Thoracic Surgeons
Paul Alexander Mazur MD
Current positions: Cardiothoracic Surgeon at Cardiothoracic Surgical Associates, Inc. in Oceanside California
Education: Temple University in PA
Lisa Marie Sheppard, MD
Current positions: Reader of all imaging modalities (including MRI, CT, ultrasound, densitometry, mammography, and x-ray) for several imaging centers
Education: BS in Physics from St. Joseph’s University; MD from the Jefferson Medical College; Certificate of Added Qualifications (CAQ) in Neuroradiology; Certificate in Densitometry
Professional organizations: American College of Radiology, American Society of Neuroradiology, American Roentgen Ray Society, Radiologic Society of North America, International Society for Clinical Densitometry
J. Robert Thompson, MD
Current positions: Radiology consultant at Evans Army Community Hospital in Colorado Springs
Education: BA from Northwestern University; MD from Northwestern University Medical School
Professional organizations: Evans Army Community Hospital
Stephen D. Torpy, MD
Current positions: Private practitioner
Education: BS in Medicine; MD from the University of Nebraska
Professional organizations: American Board of Surgery, Alpha Omega Alpha Medical Honor Society, Fellow American College of Surgeons, Midwest Clinical Society, American College of Phlebology
William Zinn MD
Current positions: Radiologist at Virtual Radiologic
Education: MD from N.Y.U of New York State and a BA in Chemistry at Duke University
Professional organizations: Board certified and a member of the ACR (American College of Radiology), Neuroradiologist
Laboratory Director
Benjamin Gerson, MD
Current positions: Clinical Professor of Pathology and Cellular Biology, Medical Director - University Services
Past Positions: Former Chairman of the Clinical Devices Panel for the FDA, faculty of the Harvard Medical School, Professor of Pathology and Pharmacology, Clinical Professor of Occupational Medicine, Director of Laboratory of Analytical Toxicology at Boston University School of Medicine, Director of Clinical Laboratory at Premier Research Worldwide, and Director at BIEX Clinical Laboratory
Education: Jefferson Medical College
Trained: Johns Hopkins Hospital and Johns Hopkins University School of Medicine
Professional organizations: Diplomat of the American College of Forensic Examiners
Certified: Toxicology, Anatomic & Clinical Pathology, Medical review officer (MRO) by MROCC, and National Board of Addiction Examiners