Received a call. automated asking if I was one of the hundreds of people with chronic back pain. I hung up.

They use the Do Not Call List to actually call people.

Um, Anita, that's not true.. They don't need to buy a list, all they do is plumb numbers into dialers or computers.  The DNC list has to be purchased and the business has to be legit.

By State DNC lists:
http://800notes.com/res/DoNotCall.aspx

http://www.tcpalaw.com/
http://www.consumer.ftc.gov/articles/0108-national-do-not-call-registry
https://www.donotcall.gov/
http://www.ftc.gov/opa/2008/04/dncfyi.shtm
http://business.ftc.gov/documents/bus27-complying-telemarketing-sales-rule
http://business.ftc.gov/documents/bus27-compl ... -rule#DNCrights

If you received a call from 303-805-0849, Do not give this caller any of your information.
It was not from Brown’s Compounding. We do not use Telemarketing.
Someone is spoofing our Caller ID information.
We are trying to gather information about this third party. If you are willing to work with us to get this stopped, please leave a message at 303-407-2777 If one of our Managers is not available.
We understand that you may want to block your caller ID. Please dial the number this way to block your caller ID information *67-303-407-2777 in Colorado, *67-1-303-407-2777 outside Colorado
If you are outside Colorado this is a long distance call so please use a phone that does not charge you for long distance
We would be especially interested in talking with you if you gave them any insurance information or if you have been in contact with them more than once.
We are sorry for any inconvenience.
Thank you,
Darby Brown

Looks like some sort of health provider...or pharmacy sales...Providing a couple of links.
https://rmhp.healthtrioconnect.com/public-app ... e=co&provType=R

http://www.uslocalmedical.com/providers/brown ... 1225166093.html