@DreamInLavender
Oh wow that is harsh. .. And sooooo rude.
Your friend may be a vital member of the team (as a nurse,) but the admin and reception staff are also very important. I love the reception staff at my GP surgery. They all know me, my voice, my face, my name, and they often chat for a few minutes to me when I go to pick up a prescription or book a nurse appointment.
They have even said 'we don't mind going above and beyond for our favourite patients!' People can call me daft, but it makes me feel all warm and fuzzy inside when they say that!
The staff at GP surgeries are an integral part of running it. Your friend was really bloody rude. I have been put down in the workplace before (from someone who was middle management,) who introduced me as 'this is Poppy; she is just an admin assistant!' 
I did a lot - including liaising with customers, clients, the general public, total strangers, social services, the courts, and the council. And I did tons of filing, typing, archiving, photocopying, filing, creating new systems, ordering stock, doing wages etc..., And I also regularly cleaned the office and kitchen because they were too tight to hire a cleaner...
Yet I was 'just the admin assistant.' 
Pretty ironic that he dismissed me as a nothing who does fuck-all, when he spent all day doing very little, ordering people about, and taking 2 hour lunches. In addition to regularly staying out of the office for 3 hours, (for a one hour meeting,) as he was doing bits of shopping, having his hair cut, going to the bookies, and visiting his 'fancy piece' for a crafty fuck. 
I would be tempted to tell your friend she was very hurtful, but she sounds like the type to think you're being silly, and will dismiss you as not having a sense of humour....... 