Where is the blue card?

Hint 1 of 4:

The blue key card is needed to get into the main building in this level (the
one near the Hollywood Ave. sign).

Hint 2 of 4:

Look around in the few other areas you can go into.

Hint 3 of 4:

Check out the doctor's office down the hill.

Hint 4 of 4:

You'll find the card in the operating room.