Depending on your mother's age, there are many different travel medical insurance options for her even after she has been in the U.S. for 30 days. You can always get a quote here. In the "Coverage Area" section, you can select "Already in USA" and then select the duration of time that she's been in the U.S. If you need help selecting a policy or differentiating between the different options, you can always feel free to call us at: 866-384-9104 or email us at: email@example.com and one of our agents would be happy to help you.
Insurance rates are regulated by law. You can't find the same insurance plan for a lower price anywhere else