The Verizon Wireless Customer Service number is listed on your bill. It is also available on the Contact Us link above. Search is also your friend on this community has the number has been posted numerous times.
FYI it is 1-800-922-0204.
No, the customer service phone number is not in any location on the website, is not under Contact US, but only found in the forum.
Contact Us > Phone > I Need Help With... Finding Device and Account Support.
It's there. I just checked, but I did need to dig for it.