Dr. Andrew Ross Weymer, MD

Dr. Andrew Weymer specializes in pulmonology, internal medicine, and critical care medicine, bringing nearly four decades of medical expertise to his practice. He earned his medical degree from St. Louis University School of Medicine and completed his residency at UCLA Medical Center. With 38 years of experience treating complex respiratory and critical care conditions, Dr. Weymer has developed extensive knowledge in managing both acute and chronic lung disorders. He communicates with patients in English and Spanish.

Dr. Weymer practices at Saint Johns Regional Medical Center and maintains offices in Oxnard and Camarillo, California. His clinical focus includes treating respiratory failure and chronic lung disease, along with helping patients manage various breathing problems. He performs specialized diagnostic procedures such as pulmonary function testing and bronchodilator reversibility testing to evaluate lung capacity and response to treatments. Dr. Weymer also conducts asthma …challenge tests to help diagnose and monitor asthma in patients. Patients have given him an average rating of 3.5 on Vitals.