MD and DO licensing follow different California boards
The Medical Board of California licenses MD physicians, while the Osteopathic Medical Board of California licenses DO physicians. Each clinician should follow the requirements and current timing published by the correct board.
Source documents, training verification, examinations, fingerprints, explanations, and deficiencies can affect either path. The Medical Board encourages physicians to apply six months before the license is needed; that planning guidance does not guarantee issuance by a particular date.
