The article touches on several interesting tidbits regarding the possible misrepresentation of Dr. Jarvik, including but not limited to what branch of medicine his degree is actually in (by the looks of him, I'm guessing obstetrics).
Qualifications Schmalifications! The feature and certainly most damning revelation is not whether or not he is a cardiologist, but rather whether or not Dr. Jarvik can row a boat. Here is the chilling account from the Times:
"One television ad depicted Dr. Jarvik as an accomplished rower gliding across a mountain lake, but the ad used a body double for the doctor, who apparently does not row."So just which scenes feature the real Dr. Jarvik, and which feature this alleged body double? I took the liberty of drawing up the following visual aid to help explain:

Reports have no been confirmed, but it's rumored that Dr. Jarvik may soon be appearing alongside Mili Vanilli in the new Lipitor®-approved Subway heart-healty $1.67 menu.