In 1948, he lifted his embargo on administrative positions when he became the deputy director of medical services. In 1951, he was made the first Nigerian director of medical services and subsequently the Inspector General of medical services. In 1954, he became fully involved with the Nigerian public service when he was appointed the Chief Medical Adviser to the federal government of Nigeria. He later went on to become a member of the Privy Council of the Federation of Nigeria, President of the Association of Surgeons and Physicians in West Africa and the first Nigerian Commissioner of the Federal Public Service Commission.