i'm a physician in residency right now. i don't plan on pursuing loan forgiveness because i am in a high-paying field (anesthesiology), i managed to leave medical school with a moderate amount of debt that i'm paying down as best i can (140k-ish, paying >1k/month on a limited resident salary), and, most importantly, because i don't trust the government to actually repay people's loans. moreover, if/when you get your loans forgiven, you're taxed on the forgiven amount as if it were earned income. so that can be a surprise 60-80k for those who don't understand that particular wrinkle of the program.
i've read some interesting policy papers arguing that there should be a ceiling for PSLF, lest borrowers take advantage and withdraw the max in order to finance other purchases during graduate school (i.e., cars, homes). essentially, there's currently no disincentive to borrowing irresponsibly, because there's no cap on what can be forgiven. per some policy analyses, this system actually favors high earners like MDs, PAs, lawyers, etc., at the expense of other graduate students like those pursuing public health, social work, etc.
my advice is to avoid taking out any and all loans that you can. many graduates from my medical school have in excess of 300k in loans. i lived frugally in medical school, applied for grants/scholarships all the time, and had a bit of familial support here and there. it makes me much less anxious about my future, even though i'm living in a very HCOL area and earn ~75k/yr while working 80+ hours a week. but that's residency -- i don't think PAs have to go through the fun exploitative and exhausting period that is residency. also, you never know what you'll end up liking during PA school. i had no interest in anesthesia until i actually did it. i would be miserable if i were working in an outpatient, primary care specialty just to take advantage of a not-for-certain loan forgiveness possibility.
i avoided high-interest grad PLUS loans, which has helped, but my aggregate interest rate for all of my loans is close to 6 percent. i can't get a much more competitive rate by refinancing (i've tried in 2-3 places), mostly because my income is limited in residency and my debt-to-income ratio is high. from what i've heard, PA salaries straight out of school are higher than residents' salaries, so you'll likely be able to pay your loans back faster than residents can.
let me know if you have any other questions. i love my job and wouldn't do anything else, but it isn't a cheap or easy road!