I was indeed referring to the hospital repayment perks.
Do you know if the interest rates are negotiable? I didn't try asking as I though they were set in stone by the bank. If I do have a cosigner it seems like the interest rate would be less?
Technically, everything in life is negotiable. However, I tried negotiating with Wells Fargo to lower my interest rate to match what DRB offered me if I consolidated my private loans with them. I thought Wells Fargo would match the rate by offering me a new consolidation loan, but unfortunately they wouldn't, so I consolidated with DRB at a much better rate.
As a general rule, if you want to negotiate the rate, it helps to have a better offer. But even if you don't, it certainly never hurts to ask. Often the person you talk to on the phone is just a customer service representative with now power to change the rate, so you'd probably have to actually meet and talk with a loan officer.
As for the hospital loan payoff perks--those are most certainly negotiable. I know quite a few residents who negotiated a $10-30k more in loan repayment because another hospital gave them a better offer. Keep in mind those payments are taxed--the repayment perk is really just a guaranteed bonus for signing on/staying x amount of time.
Yes, the interest rate is almost always lower if you have a cosigner. In my case one of my private loans was at 4% or so--this loan I took out on my own. Another one my dad cosigned with me was 2%.
Be cautious if you get a cosigner. My dad cosigned one of my post-bac loans. In my two years between graduating from my post bac and starting medical school, I couldn't find work for about six months and had to put that loan in a hardship forbearance (most private lenders do offer this). However, I was never warned (other than small fine print in my MPN that I never--but should have--read) that doing so means your cosigner can NEVER be released from the loan. Typically you can get your cosigner released from the loan after a year of on-time payments, but the forbearance eliminated that. In hindsight we both wished he had just covered the loan payments for those six months, but I ended up consolidating that loan anyway, so it effectively released my dad since the loan got paid off.