You can check whether you are insured and whether medical insurance contributions are received for you on the e-government portal egov.kz .
To do this, in the "Healthcare" section, you need to find the service "Issuing information about participation as a consumer of medical services and about the amounts of deductions or contributions listed in the compulsory social health insurance system", click on the "Order service" button, enter the IIN.
The result will appear immediately after the status update.