Should part-time (.25 time) physicians (low budget solo practice, no staff) with one or two Medicare patients register for the e-prescribing system? Is the e-prescribing system free? If not free, can the charges only apply to the time when the e-prescription is submitted? What would be the cost to the physician to e-prescribe one or two prescriptions each month? What happens when prescriptions are needed but patient cannot come to office? Thank you.