Hi Brett,
I am wondering if @Lukas wouldn’t have an answer here for you.
He wrote a great answer here:
which led to:
https://developer.matomo.org/api-reference/PHP-Matomo-Tracker#getvisitorid
and open the gates for many possibilities about Matomo.
From my understanding you would like to push as a trackpageview the visitorid value.
→ Am I right?