$115 per hour? Damn. That's a lot of money if you're talking about just a walk-in clinic. There's gotta be a catch, because that sounds too good to be a walk-in clinic.
If you worked 40 hours a week, 50 weeks per year, the rate of $60 per hour puts you at $120,000 which, in a big city, where you take no call, no hospital work, no OB, no nadda except give out anti-histamines & antibiotics is just about right. At a rate of $65 per hour, you're on pace for $130,000 and at a rate of $75 per hour, you're on pace for $150,000. These are just about average starting salary for an hourly working FP doc with little-to-no risk, easy lifestyle, able to work full-time no-frills practice.
At $115 per hour, that puts you at $230,000 if you went full time, which equates to either a partnership/senior physician in an no-frills outpatient only FM practice; or a high volume urgent care (and thus higher liability) or low volume ED... but almost always, no one works 40 hours x 50 weeks in those settings. At $165 per hour, if you worked that full-time, you're on pace for $330,000.
My guess is that the chief residents were alluding to a job with either moderate-to-high volume urgent care/walk-in clinic, moderate-to-high liability setting. Hopefully, these residents who are moonlighting there are practicing some fierce defensive medicine.
Correct me if I'm wrong; but generally, you need to justify your salary by bringing in 3x your worth in revenue if you're doing outpatient primary care/urgent care work. So, if you're making $115 per hour, you need to bring in $345 per hour in revenues. If the typically outpatient visit (99213) reimburses by Medicare $50 per visit, you need to see 7 patients per hour, which is 8.5 minutes per patient. You better hope patients have easy complaints in order to move that fast. I've done it before at that pace, but not as a 2nd year resident... I'm willing to bet either the acuity (and thus reimbursement rate) is much higher than the average outpatient cough/cold or the volume is consistently high in order for the clinic to afford to pay the doc-in-a-box that much.