My OB offered the quad screening at my next appt (I'll be 14w4d), and then a level 2 u/s if the quad screen came back positive, but never mentioned the option of an NT scan. I don't think I would have chosen to have the scan, which is why I didn't ask the doc about it, though I am curious as it seems to be the norm on these boards. FWIW, I also don't think we'll be doing the quad screen, either.
BFP #1 10/27/2009 ~ DS1 ~ BIRTHday 7/16/2010 ~ med-free Bradley birth @ 40w5dBFP #2 1/22/2012 ~ DS2 & DD ~ BIRTHday 9/13/2012 ~ unplanned C-section @ 38w1dBFP #3 5/4/2015 ~ EDD 1/7/2016

Re: Anyone not offered NT scan?
my doc asked me if I wanted to do any tests, and I specifically requested the NT. I will also be seeing a perinatologist for my big ultrasound.
I think a lot of insurance plans don't cover the NT so your doc might not have mentioned it for that reason.
My Dr actually dissuaded me from having an NT scan. I just asked her about it, and she said if I wanted to have it done, fine, but just to be aware that the scan only estimates certain risks to the baby, and that the test tends to err on the side of finding you at risk for certain things. She just warned that if you do have it done and there is something there, an amniocentesis is usually done afterwards which is a more invasive procedure, and she usually doesn't condone medical procedures without a very good reason to have one. Does this make sense? So we basically decided not to have any additional "unnecessary" tests done since we are not at risk for any particular diseases based on our ages, family history, and ethnicities.
http://balletandbabies.blogspot.com
It is recommended by ACOG, but some doctors still don't have the training to do NT screening.
I work in OB medical education and it honestly irks me to read some docs aren't offering it. They should be referring out of the practice if they can't perform it themselves. Whether a not a woman wants it is totally her decision, but it is part of their job to counsel their patients on what's avaialble.