John R. Porteous, MD, FACS

John Porteous

Title: Surgeon
Company: McHenry Medical Group Practice
Location: Modesto, California, United States

John R. Porteous, MD, FACS, surgeon at the McHenry Medical Group Practice, has been recognized by Marquis Who’s Who Top Doctors for dedication, achievements, and leadership in general, vascular, and thoracic surgery.

Dr. Porteous is a board-certified surgeon celebrating more than 45 years of expertise in both general and specialized surgical interventions. Driven by a lifelong passion for medicine and a desire to become a physician, he spent summers and weekends working as a hospital orderly while completing undergraduate coursework at Fresno State College. Dr. Porteous was bestowed with a Doctor of Medicine in 1966 by the Washington University School of Medicine and completed an internship and residency in internal medicine at the Strong Memorial Hospital at Rochester University.

During the early stages of his training, Dr. Porteous recognized that he was more drawn to surgery than internal medicine, and continued his education as a part of Stanford University’s four-year general surgery program, followed by a fifth year of specialized hospital-based training. He began his career as a surgeon in 1972 at Doctors Medical Center of Modesto, performing between 500 and 600 thoracic and vascular surgeries per year in addition to overseeing the hospital’s emergency trauma department. He remained active in practice at Doctors Medical Center of Modesto until 2018 and served on the hospital’s board of directors for 35 years, during which time he served for five terms as the chairperson. In recognition of his legacy of dedication to the hospital’s patients and staff, Dr. Porteous was the namesake and first recipient of the John R. Porteous Leadership Award, which the hospital awards annually.

Dr. Porteous credits his ongoing success to the quality of the education he received, particularly the support and guidance he received from his father and his early professional mentors. He continues to be motivated by his continued interest in the field and desire to learn, and advises students considering careers in medicine that the more effort they put into their education, the better their results and opportunities will be. Dr. Porteous considers his greatest professional accomplishment to be his perfect record of successful patient healing, noting that he has never had a patient suffer a stroke following surgery. Within five years, he hopes to be enjoying retirement and time spent with his four grandchildren.

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