Dr. Lester Ervin Mertz, MD

Dr. Lester Mertz is a rheumatologist who specializes in diagnosing and treating conditions that affect the joints, muscles, and connective tissues. He earned his medical degree from the Medical College of Wisconsin, where he also completed his residency training. With 45 years of experience in rheumatology, Dr. Mertz has built extensive expertise in managing complex inflammatory and autoimmune conditions. He speaks English with his patients.

Dr. Mertz practices at multiple prestigious medical centers, including Mayo Clinic Hospital and several HonorHealth facilities in Scottsdale. His clinical focus includes treating patients with gout, a painful form of arthritis caused by uric acid buildup, and pseudogout, which involves calcium crystal deposits in joints. He also manages acute kidney injury, which can sometimes occur alongside certain rheumatic conditions. Patients have given him an average rating of 4.3 out of 5, reflecting their confidence in his care and expertise.