If he claims that there is nothing wrong with his health, only then do you show him the data collected and ask for a confirmation from him. You should caution him that the management is aware about the medical leave taken and would want him to change. If his attitude does not improve, you may need to assign him to a particular clinic for his medical visitations, telling him that visits to other clinics will not be recognised. Make him understand the implications of such frequent absences from work and get his agreement in writing on the conditions laid down. Have the meeting documented and served to him as evidence of such discussion and agreement. And finally, closely monitor the progress of his attendance and his behaviour.
On the other hand, if the staff actually admits to having some health problems, you should offer to refer him to a specialist for a complete medical check-up. The medical report should determine the extent of the staff’s health condition. Most times, the staff should recover with little further intervention. Sometimes, all that may be required is to transfer the staff to another position within the company. But there will be the rare occasion when the staff may need to be medically boarded out. Many companies may be loathe to do this but this solution may be the fairest to both the company and the staff. Medically boarding out an unfit staff is a traumatic experience and the company may well have to provide counselling to the affected staff. You may be required to pay his retrenchment benefits as well as to help him apply for his SOCSO benefits.