Can’t Get Existing Provider User ID?

Hello WordPress,
I’m trying to figure out how the hell I can echo the “Provider User ID” of the currently signed in profile for use in a web page. I can’t find the variable which declares it, or whatever I need to do to get it.
If it helps, the connected profile is through Steam and I’m trying to grab the signed in user’s Steam64ID, which in this case, appears as the “Provider User ID.”
Any help is appreciated ??

• This topic was modified 7 years, 7 months ago by shotz5. Reason: Title Correction