Photography for personal and or commercial purpose, and property rights, can often overlap, however their legalities are different. This is aside from any patient privacy issues, which is another ball of wax. Simply put, in general, no one has the right to take or make any recordings of any kind while they are on your property without your permission. Thus, if we applied this same property rights rule in a hospital, no patient or visitor has the right to record anything without the permission of the property owner (ie the hospital). It doesn't matter that the patient is taking only a picture of himself in the privacy of his or her own room. If he's within the confines of property that belongs to another, he needs permission from that other person (or legal entity, in this case, the hospital). This has nothing to do with HIPAA.
Oh, and a note to imintrouble; your post made me recall an incident I encountered while touring through Guilin, China, way back in the early 1990's. I was riding by boat on the picturesque Li River, about to dock at Guilin, when I took a picture of the dock as we neared. I saw that one particular man had taken immediate notice of me, as he suddenly got up from his sidewalk squat and began moving quickly to our anticipated point of disembarkation. As he arrived there first, there he stood, waiting for me as I got off the boat. He approached me and quite boldly stated (through our tour guide interpreter) that he saw me take a picture of him, and for that I needed to pay him compensation. I listen attentively as the tour guide carefully and politely explained what the man wanted. I then locked eyes with him and all the while told the guide to translate word for word; I explained that I had saved for years for the air ticket to come from America especially to take a picture of this beautiful dock in Guilin, and just as the boat approached with the lighting perfect for my prize winning photograph... 'HE' BUTTED IN HIS UGLY ASS FACE INTO THE PICTURE AND RUINED EVERYTHING!!! Therefore, I needed him to repay me, the price of my air ticket, my film AND for the monumental loss of this once in a lifetime opportunity. He stared slack jawed at the tour guide for a moment, and then back at me; then shook his head and wagged a finger, but quickly retreated back into the crowd as the other listening natives roared in laughter at his expense.