New comers can have any of the following situations relating to health insurance:
Situation 1: In most cases employer offers the health insurance as part of the employee benefits, however enrolling in this may take time depending on several factors including time taken to get the Social Security number etc.
Solution: You can buy a short-term travel medical insurance to protect your family during this period. Based on your age, it should be very cost effective.
Situation 2: In some cases, employer may not be able to enroll you into their health insurance plan, due to the waiting period clause that may take a few months.
Solution: You can buy a short-term medical insurance to protect your family during this period. Based on your age, it should not cost you much
Situation 3: In some cases Employer do not even offer medical insurance. In such case you need to get the insurance yourself.
Solution: Get free advise and free quotes from top insurance companies
Situation 4: Employer provided insurance may be very expensive.
Solution: You may consider buying the insurance yourself and save significant amount of money. Get free quotes and compare yourself, how much you can save