In case you have lost your Health Insurance card and cannot remember the card number, you can retrieve the information through various means: check the list of issued Health Insurance cards stored at the unit, call the Customer Support Center of VSS via the hotline 19009068, look up the card number on the VSS electronic information portal (at http://www.baohiemxahoi.gov.vn), with the condition of having sufficient information including: full name; date of birth; address of household registration (commune, district, province); and identity card number. Additionally, you can contact the local social security agency that issued the card to proceed with the issuance of a new Health Insurance card or contact post offices, cultural post offices, commune People’s Committees, units, agents participating in social insurance, health insurance to get assistance in finding the Health Insurance card number and addressing any other issues (if any).