I work for a medical clinic, the only difference perhaps being that we get grants to care for the homeless at one of our clinics (but not all 4 for the most part) so that may factor in to the sheer amount of paperwork.
Each doctor generally has 2 nurses - 1 for paperwork, 1 for intake. Our intake nurses put patients into the room, take bp/weight/temp/height/hr and o2 sat and peak flow if they're having breathing issues. They also do a lot of breathing treatments, finger stick blood sugar/HIV/hemoglobin, urinalysis, setting up rooms for paps and procedures, ear flushes, and more. We also do some med related things, collecting and distributing meds from sample closet and med assistance programs (all overseen/ordered by the provider)
Our paperwork nurse does referrals, calls in meds, does pre-auths for meds, radiology referrals, getting back/entering reports, taking calls, doing a lot of triage and "nurse visits". We also do paperwork for a few things that are processed through grants, which is a pretty drawn out process.
Because I'm at our homeless clinic now, we see a lot of knife wounds, random assault and alcohol related accidents etc, but I'm sure you get your share of drug seekers, chest pain, etc at private clinics as well.
I love what I do and where I work, and I can't imagine working in any but this kind of setting. Hopefully I will never have to. :)