Dr. John Haynes Demenkoff, MD

Dr. John Demenkoff specializes in internal medicine, pulmonology, and anesthesiology, bringing five decades of medical expertise to patient care. He earned his medical degree from Harvard Medical School and completed his residency at Moffitt Hospital University of California. With 52 years of practice, Dr. Demenkoff has developed comprehensive experience across multiple medical disciplines. He communicates with patients in both English and Spanish.

Dr. Demenkoff practices at Mayo Clinic Hospital with locations in Phoenix and Scottsdale, Arizona. He focuses on treating respiratory conditions such as chronic bronchitis and COPD, including cases with additional health complications. His approach includes physical therapy, strength training, and manual therapy techniques to help patients improve their breathing and overall function. Patients have given him an average rating of 4.0 out of 5 stars.