Back in May 2022, I may have been one of the first to publicly comment, that HHS had stripped emails and phone numbers from its longstanding employee web directory.
http://www.discoveriesinhealthpolicy.com/2022/05/has-famous-hhs-directory-suddenly.html
As of July 28, 2022, the emails and telephones seem to be back. Note that you search for a name, then get a listing of that name (or matching names), and when you "click" on the last name, you get a new page with more information.
https://directory.psc.gov/employee.htm
