Key points:
Go in with the expectation that even as sweet as their offer may seem, it will be in their favor, because in all likelihood, it will be.
1. Salary, both guaranteed and production. How long will the guarantee last before you're expected to make hay. What will the adjusted salary be after the guarantee is over? If you leave before the contract is over, are you responsible for paying back any bonuses?
2. Restrictive covenant. If you decide you hate the place, how far do you have to move to practice elsewhere?
3. Tail coverage. Do they pay full tail coverage after x amt of years?
4. CME
5. Days off
6. State/DEA license costs
7. Discounts with hospital/hospital system. This one is neat for family members as well. You're a practicing doc in the community. Many independent docs who want/appreciate your referrals will discount/no charge procedures. My family has seen ENT, ophthal, neuro and GI (independent guys) here with no copay. I get ZERO discount with my corporate hospital system. Older docs in the area who were here before me have a literal 'green card' that they pull out. They don't pay a penny.