Doctor William Rush is not your average on-call professional. He's not attached to any hospital, he's highly discreet -- no matter the ailment, his clients must pay a cash-only premium, and ... Read allDoctor William Rush is not your average on-call professional. He's not attached to any hospital, he's highly discreet -- no matter the ailment, his clients must pay a cash-only premium, and the doctor can party with the best of them.Doctor William Rush is not your average on-call professional. He's not attached to any hospital, he's highly discreet -- no matter the ailment, his clients must pay a cash-only premium, and the doctor can party with the best of them.