Of course, it is possible. But, the income would not be guaranteed. For example, you could potentially make 600/yr doing locums in the middle of nowhere and work 30-40 hours a week, but you may end up being replaced after 6 months, and have to start over. Or, you could make 600/yr providing inpatient coverage/call coverage for various doctors who are desperate for it, but they may find an NP or two to replace you, and you may not be needed a year later. This is the main reason why i work about 10 different jobs and end up with gobs of money; if i lose one gig (ie if they don't need me to provide call at one hospital); then it doesn't matter, I'm still making 7 figures a year, and i'll find another gig to replace that one. However, if I had fewer gigs, and I lost one, it would provide a bit more of a shock to my income.
In summary: sorry, if you want to make a lot of money as a new doc, you need to either work very hard or take lots of risk.