Are there places that can do an assessment straight away?

My wife has just come back from the doctors after finding a lump on her cervix. The GP is making a referral. This is the first I knew about it and obviously has shook me. The referral is 2-4 weeks. I cant imagine waiting that long never mind how my wife feels.  Are their private places where if I pay a fee my wife can be seen within days?

Thanks.