You can use your sister's ID card and social security card to see a doctor. Will the doctor know?

Yes You need to show your ID card when you register in the hospital, and you need your real name when you see a doctor. When verifying your ID card, be sure to confirm it yourself. You must register for medical treatment with your valid identity documents, including the second-generation resident identity card, household registration book, social security card, passport, military officer's card, etc. At the same time, you should provide your own mobile phone number and other effective contact information, and then confirm that you can see a doctor smoothly in the future. Neither your ID card nor your social security card can be lent to others. So you can use your sister's ID card and social security card to see a doctor, and the doctor will know.