Actually, I tried calling my surgeons office this morning (Dr Skibber), and his office is closed until July 11th for vacation. < edited >
I would suggest that, if possible, you have your Dad's Dr refer you, but you can make an appointment on your own. ANY DOCTOR there would be one of the best in the country. To make things easier when going for your initial visit, they have a hotel INSIDE the facility.
Hope this helps.