St. Petersburg, FL

7292 Fourth Street North Suite B
St. Petersburg , FL 33702


Clinic Medical Director
William M. Blackshear, Jr., M.D.
“Dr. Bill”

american board

William M. Blackshear, Jr., M.D. "Dr. Bill"

Dr. Bill graduated Magna Cum Laude from Duke University with a Bachelor of Science degree in Chemistry. At Duke, he was inducted into Phi Beta Kappa honor society, along with other academic honor societies. He attended medical school at Tulane University in New Orleans, where he also graduated near the top of his class and was inducted into Alpha Omega Alpha, the national medical honor society. After completion of a surgical internship at Denver General Hospital, he served two years in the US Navy Medical Corps, serving in Viet Nam and at the US Naval Academy at Annapolis, Maryland. He was awarded the Navy Achievement Medal for his service in Viet Name and was honorably discharged with the rank of Lieutenant Commander.

After completing his active duty, he returned to Tulane for a four year General Surgery Residency, where he earned the prestigious Owl Club Resident Teaching Award. General surgery training was followed by a two year Peripheral Vascular Surgery Fellowship at the University of Washington in Seattle, where he was instrumental in developmental clinical research with the duplex scanner, a groundbreaking noninvasive vascular diagnostic tool. Based on this research, he authored the first paper in the world’s literature on the detection of carotid artery atherosclerosis with ultrasound scanning. This technique has become the standard of care in diagnosis of carotid artery blockages – one of the most common causes of stroke.

After completion of his vascular fellowship, Dr. Blackshear joined the faculty of the University of South Florida in Tampa as an Associate Professor, where he directed the Vascular Surgery Division for many years. During his tenure at USF, Dr. Bill continued his research in stroke prevention, opening the first noninvasive diagnostic laboratory in the Bay area and authoring the first scientific paper in the world’s literature on performing carotid artery endarterectomy based solely on ultrasound findings. He started the first vascular surgery residency in Florida, served as a Founding Member and President of the Florida Vascular Society, performed the first endovascular surgical procedures in the Tampa Bay area and authored over 50 publications in the medical literature. He is a member of over 25 medical professional and honorary societies, including the prestigious Distinguished Fellow designation of the Society for Vascular Surgery and the Southern Association of Vascular Surgery. He is Board Certified in General Surgery, Peripheral Vascular Surgery and Bariatric Medicine.

While directing the USF Vascular Surgery Division, Dr. Bill found time to pursue his long term interest in metabolism and nutrition, directing the Metabolic Support Team at Tampa General Hospital for over five years and serving as a Founding Member of the Florida Association for Nutritional Support, which he also served as President.

He left academic practice in 1992 and moved to Pinellas County, where he opened the endovascular surgery program at Largo Medical Center, was Medical Director of the Vascular Institute of Florida and the Vascular Diagnostic Center and became active in many community charitable organizations. In 2005 he resumed his work in metabolism and nutrition, starting a weight reduction program as a risk factor management part of his practice which grew into Prescription Weight Loss Clinic® Currently he is President and Managing Member of Prescription Health Network LLC, which franchises Prescription Weight Loss Clinics® to practicing physicians, and directs the St. Petersburg Prescription Weight Loss Clinic®franchise.