Episode 66 of The Side Hustle Career Podcast. Lucas and Luna break down how a dental assistant earning $18 an hour turned her back-office knowledge into a $7,000-a-month side hustle auditing dental billing claims. They walk through the exact training path (a six-week online certificate), the software stack she uses (Dentrix, Eaglesoft, and a claims scrubber tool), and how she lands clients: cold emails to local dental offices offering a free one-claim audit. By month four she had six recurring clients. The hosts also cover the typical error rates in dental billing — around 12% of claims have coding mistakes that cost practices $8,000 to $15,000 a year in denials or underpayments. For anyone working in a dental office or healthcare admin, this is a concrete, low-overhead way to freelance without quitting your day job.