He has been practicing medicine for over 23 years. Currently, Dr. Sanjay Kumar Singh is working with kalra hospital. In addition to his affiliation with multiple hospitals, he has been professionally active in many other ways. Dr. Sanjay Kumar Singh finished his MBBS from Rajendra Institute of Medical Sciences, Ranchi. After that, he went on to do MS - Opthalmology from Patna Medical College in Bihar.