According to Clause 5, Article 12 of Decree No. 146/2018/ND-CP dated October 17, 2018 of the Government elaborating and providing guidance on measures to implement certain articles of law on health insurance, “Time of continuous participation in health insurance is the time of use indicated on the next health insurance card following the previous time; in case of interruption not more than 3 months”.

Based on the above regulations, it is not clear whether you have been interrupted from participating in health insurance for more than 3 months when moving to a new workplace. Therefore, you need to contact the social insurance agency where your card is issued to get checked, answers, instructions and solved according to the above regulations.