Merhaba Impulse!

both are correct.

Каждый день я бываю на работе - Every day I go to work/come to work.
Каждый день я на работе - Every day I am at work.

In Russian omissions are often possble. Compare with this:

Машина стоит около входа - The car is parked near the entrance
Машина около входа - The car is near the entrance.

you see, in the 2nd sentence i use omission, no verb of action is used, i just state the fact but it's grammatically correct