What’s in a Name?

Okay, so I needed to change a character’s name–thank goodness for search and replace! It was Ben but I already had a Jerry, and since the book isn’t about ice cream….
Anyway, so I decided on Mark. The character is a doctor, head of Pittsburgh’s Angels of Mercy’s ER.
Then I got to thinking, there are a lot of Mark’s out there in fictional medical land, aren’t there?
There’s McSteamy from Grey’s Anatomy, aka: Dr. Mark Sloan…

I’m guessing the GA writers were paying homage to the original Dr. Mark Sloan from Diagnosis Murder:

And there’s Dr. Mark Greene from ER:

And, of course, the grand-daddy of all TV docs, Marcus Welby, MD

Okay, given that pedigree, guess I’m gonna keep my guy a Mark as well!! How could I go wrong?