Thanks @firespooks for clarifying things. By visiting the Medicare FAQ webpage it states that "Medicare Part B will cover prostate-specific antigen tests once every 12 months." Therefore, a screening PSA in Nov 2022 is covered, but another one in say June 2023 would not be UNLESS the doctor deems it medically necessary. So it's based on a 12 mo period and not on a calendar year. How did you arrive at a 4 mo cycle for diagnostic PSA tests? Your choice or your doctor's? What type of treatment did you decide on? If you had any side effects were they temporary? Again, your input is appreciated.