Geno J. Merli, MD ’75, MACP, FHM, FSVM is senior vice president and associate chief medical officer at Thomas Jefferson University Hospitals. A vascular medicine specialist, he serves as division director and enterprise lead of vascular medicine, a member of the Bruce & Robbi Toll Heart and Vascular Institute, and a professor of Medicine and Surgery at Sidney Kimmel Medical College.
A retired lieutenant colonel in the U.S. Army Reserve Medical Corps, Dr. Merli received his medical degree from SKMC and completed his residency in rehabilitation medicine and internal medicine at Thomas Jefferson University Hospital. In 2025, Dr. Merli and the Class of 1975 are celebrating their 50th anniversary of graduating from SKMC.
Dr. Merli is a nationally recognized expert in the areas of prophylaxis and management of deep-vein thrombosis and pulmonary embolism (DVT/PE), as well as for the medical consultation of surgical patients. His research has focused on prophylaxis for DVT/PE in medically ill patients, total joint replacement surgery, trauma, high-risk cancer patients, treatment of DVT/PE, and reducing hospital admissions for deep vein thrombosis and low-risk pulmonary embolism.
Dr. Merli is a Master of the American College of Physicians and a Fellow of the Society of Hospital Medicine and the Society for Vascular Medicine. He serves as chair of the Governance Committee of the Pulmonary Embolism Response Team (PERT) Consortium. He is also a member of American Venous Forum, the International Society of Thrombosis and Haemostasis, and the Society for Vascular Medicine’s Vascular Medicine Certification Task Force.
Currently serving on the editorial board of the European Journal of Internal Medicine, Dr. Merli is also co-editor, along with fellow Jeffersonian Howard H. Weitz, MD ’78, of the 3rd edition of “Medical Management of the Surgical Patient.” In addition, he is one of four co-editors of the 1st edition textbook “PERT Consortium Handbook of Pulmonary Embolism: Research, Care and Management.”
Dr. Merli co-chairs the Mayo Clinic-Jefferson national course “An Overview of Perioperative Medicine: From Outpatient Preoperative Assessment to Inpatient Postoperative Care.” Drs. Merli and Weitz also host an innovative program called “Consult Guys” at the American College of Physicians Annual Meeting and monthly on the Annals of Internal Medicine website, having completed over 125 episodes at this time.