Hospitals: Oklahoma requires hospitals to keep records for five (5) years after the date the patient was last seen (or in the case of patient death, three (3) years). In the case of minor patients, records must be kept until their 21st birthday.
Physicians: Oklahoma offers limited medical records retention guidance for private practices. Consult LINK for more on what to do when your state offers limited legal guidelines for records retention policy.
OKLA. ADMIN. CODE § 310:667-19-14