Dr. JOHN LEMMER is a board-certified cardiothoracic surgery specialist based in PORTLAND, Oregon, bringing 21 years of dedicated clinical experience to patient care. Dr. LEMMER has performed over 7.9k procedures and published 78 peer-reviewed research papers, reflecting a deep commitment to advancing medical knowledge in cardiothoracic surgery.
With advanced training in thoracic surgery (cardiothoracic vascular surgery), Dr. JOHN LEMMER combines clinical expertise with the latest evidence-based practices to deliver personalized treatment plans. Dr. JOHN LEMMER holds 7 medical patents, demonstrating innovation in surgical techniques and medical devices.
Dr. JOHN LEMMER maintains an active role in the medical community through ongoing research, peer collaboration, and continuing medical education. This commitment to staying at the forefront of cardiothoracic surgery ensures patients receive care informed by the latest advances in the field.
7 patents
Dr. JOHN LEMMER provides comprehensive diagnosis and treatment for the following conditions:
Aortic Aneurysm - a condition commonly treated by cardiothoracic surgery specialists.
Learn more about Aortic Aneurysm treatmentHeart Failure - a condition commonly treated by cardiothoracic surgery specialists.
Learn more about Heart Failure treatment