How do I visibly display the Contact Unique ID on the Contact page?

How do I visibly display the Contact Unique ID on the Contact page?

We've used Zoho's API to connect it to our website. The website keys off of the Zoho Unique ID for the contact.

Because of this, it's important when merging duplicates to know what the unique ID is for the contact. Is there a way to display the Unique ID on each contact's page?