Yes. You will still receive medical treatment, even if you do not wish to fill out any forms. Your insurance company also cannot deny coverage based on whether or not you have an advance directive.
This article is intended to be helpful and informative. But even common legal matters can become complex and stressful. A qualified estate planning lawyer can address your particular legal needs, explain the law, and represent you in court. Take the first step now and contact a local estate planning attorney to discuss your specific legal situation.