I don't think there's much debate that the relationship between a physician and a patient is one where confidentiality and trust are absolutely critical. This is why there's such outrage when a physician takes advantage of this position of trust.
Yahoo! News is running an article about a Chief Resident of General Surgery from an Arizona hospital who took a picture of a patent's tattooed genitals when the patient was sedated. The surgeon apparently was showing the picture around to other doctors, thinking the tattoo "HOT ROD" was funny. It may be funny, but the actions of this physician are appalling and bring the whole profession into disrepute. See: Tattooed privates prove not so private - Yahoo! News.
UPDATE: No HIPAA charges expected: Doctor in penis case likely will avoid federal charges.