Where do I go at the Long Beach VA hospital to fill out forms to enroll my Dad for health care benefits? And do you need an appointment?

You have to fill out a financial form. Some offices are hard to find, do to ongoing construction in the main building. But just ask any staff member and they will help you find the right office. There's even volunteers who will escort you there

The business office

You could also try your counties Veterans Service Office (VSO)... Call 211 that should be a good start.

Bldg 126 1st floor

Go into the main entrance and there will be someone to assist you