Dr. Vijay Kumar Mahajan, MD

Dr. Vijay Mahajan specializes in pulmonology, internal medicine, and critical care medicine, bringing six decades of medical expertise to his practice. He earned his medical degree from Pt B D S Postgraduate Institute of Medical Sciences and completed his residency training at Cleveland Clinic Health System. With 60 years of experience in respiratory medicine, Dr. Mahajan has developed extensive knowledge in treating complex lung and breathing disorders. He speaks both English and Spanish to better serve his diverse patient community.

Dr. Mahajan maintains hospital affiliations with multiple Mercy Health facilities and ProMedica hospitals throughout Ohio, with practice locations in Defiance, Toledo, Oregon, Tiffin, Sylvania, and Perrysburg. His clinical expertise focuses on sleep-related breathing disorders, including sleep apnea in both adults and children. He performs comprehensive sleep studies and polysomnography to diagnose sleep conditions accurately. Patients consistently rate …their experience with Dr. Mahajan highly, giving him an average rating of 5.0 out of 5 stars.