Through Doctor at Heart, Dr. Gikonyo reflects on his challenges, triumphs, and the driving passion that shaped his career. He not only provides insight into his personal life but also the evolution of healthcare in Kenya. His work has been instrumental in advancing cardiology services, and his life story inspires perseverance and commitment to making a difference in society. The book likely delves into his upbringing, education, medical training, and the founding of The Karen Hospital, which he co-founded with his wife, Dr. Betty Gikonyo. It also highlights his experiences treating high-profile patients, his dedication to healthcare in Kenya, and his vision for the future of medical practice in the country.