This is one of United Healthcare's many phone numbers. If you have United Healthcare, then it's not a scam call. I have UHC, so they were calling me regarding a prescription issue I've been dealing with for the last 3 weeks. If you don't have United Healthcare and you're receiving calls from them, then I suppose it would be a scam in your case.
caller id said united healthcare. I answered it took them awhile to respond to my hello. They wanted to get my information to go over my account and i refused any personal information. They said fine and hung up.
I did not pick up because the caller ID did not show a name. They left a message when voicemail picked up, said that they were United Healthcare and they wanted to know if I'm getting the most out of my healthcare.