Relevant excerpt from the article:
[Counterparties via Buzzfeed]Everyone's made up their mind long before the ruling, and it splits according to what kind of specialty they are in. The surgeons and cardiologists tend to be against Obamacare but the primary care and family doctors tend to be for it. They're really made up along politically ideologies and not related to substance. If they make a lot of money they want to keep on making a lot of money, and if they don't they'd like to give better patient care.