This study identified a sustainable leadership competency model leading to business growth and development for developing healthcare executives in Kolkata, India based on the Healthcare Leadership (HL) Model. Eleven chief executive officers and chief medical officers were interviewed. They considered 86% of the Healthcare Leadership (HL) competencies as very important or vital and perceived a gap in the performance of these competencies. They also identified additional vital competencies beyond the scope of the model. Participants also reported that leadership development and succession planning programs were lacking. Recommendations are to design a leadership development program using the HL model as a framework and further customizing the approach as per the organization’s unique mission, vision, strategy, values, and circumstances. The HL is offered as a general strategy for leader development that could be useful in the growth and development of Indian private healthcare industry, based on some “best practices” in the design and implementation of the leadership programs.