If you need to scrub old search results, your first step is checking who...

https://www.scribd.com/document/1015962052/I-Removed-a-Phone-Number-From-a-Page-How-Do-I-Get-Google-to-Update-the-Snippet-168129

If you need to scrub old search results, your first step is checking who controls the site. If you own it, remove the page and let Google re-crawl it. Use the "Remove Outdated Content" tool if the page is already gone but still showing up