Does a doctor have the right to refuse seeing me after signing medical release form to see another doctor?even when need help bc he missed something.

Yes: Thankfully, america is a free country. That means a patient has the right to refuse to see a doctor, and a doctor has the right to refuse to see a patient. Usually, a doctor will continue helping a patient for a month, while the patient transitions to her new doctor, unless the situation has some special circumstances. One can pre-pay the old doctor to send by fedex her records to the new doctor.