Question [Q] How to verify Developers authenticity??

Please guide me regarding How to verify the identity of the Application Developer?
The case is, one of the developers have approached us and told us that he has developed one application and it is available on the Google Play market. I can see that application on the Google Play but whenever I click on the Developers name, no information is displayed neither it drives me to any website.
So, How can I verify that the person contacted us is the same who has developed the application? Is there any way to cross check the credentials with Google?
Please guide.