My generic advice is that if you don't have a family (especially kids), don't have significant health issues, and don't have significant "living expenses" you can take care of 200k in loans (including any interest that's accumulated by the time you pay off the loans) very quickly. 3-4 years if you are very cheap and have good income, increase time to payoff to account for other factors.
For example I worked 33 months before paying off ~200k (including the interest that accumulated). In 2016 (living in California and averaging ~41 hours worked per week) I made 100k net after 401k/HSA/FICA/income taxes, with $16,700 of that going to housing, $18,000 going to food, "lifestyle" expenses and health care, and $64,620 going to loan payments ($5,385/mo).
If you combine $16,700 and $18,000, spending $2,891 a month in after-tax income is not exactly being stingy.