Since the estimated yearly expenses for UCLA is ~$50k, they really aren't giving you much. That looks like $140,000+ in debt after 4 years plus some interest for good measure.
Plus, what is the Geffen "transition" scholarship? Makes it sound like something you only get first year, so tag another $15k to that if that's the case. The SOM scholarship isn't "real" money, they are just reducing your tuition from 23k to 11k. The fact that you aren't familiar with those numbers/terminology makes it sound like it's merit based not need based 🙂 But I could be wrong.
You probably wont find a loan with lower interest than the Stafford unless you borrow from your parents. However, they are dispersing that loan under the assumption that you live according to their projected spendings. If you are careful with money, you should have some of that loan money left over. If you live lavishly, you might need more.