Received a call on my cell from this number, again like above stating he was from US Customs and a FEDERAL AGENT.  I hung up on him then called the number back.  Same guy answered.  I asked for his Supervisor, he advised he was the "Supervisor".  Then asked to speak to his Manager, he said he was the "Manager".  I then asked him if he knew how illegal it is to pose as a "FEDERAL AGENT"!  He then hung up....

This number called me saying he was from the US Customs and said I bought Illegal medications from the Dominican Republic, which I have never bought meds online. How do you make this stop?

The DEA knows about it.  But the police in the Domican Republic won't cooperate with US law enforcement to stop the scammers.  Telling the DEA, the local police, or FBI won't do any good.

You could report it to your local tv station or newspaper.  They might use it on a slow news day.  

Contact your phone provider.  They might be able to block the calls.  If you are using a cell phone put this number in your contacts list and assign it the ring tone "no ring".  That won't stop the calls but it will make them easier to ignore.

They claim they are with the DEA and that I have to send money to Domincian Republic.  I know this is a scam.  Just don't know who to make it stop.  I don't want to change my phone number.  Please advise.  I'm thinking of writing the real DEA and letting them know about scaming people for money.