Does a physician have to let a patient see his/her medical records if asked?

May the physician charge a patient a fee if the patient wishes to obtain a copy of his/her medical record?

When responding to a request for medical records, should copies of records received from another physician be included?

If a physician only sees a patient once and the medical record consists almost entirely of information obtained from prior treating physicians, may the physician forward the entire record to the patient’s new physician without keeping a copy?