Yes, definitely get another audiologist. It wouldn't surprise me if your audiologist didn't give you the complete set of tests either.
Here's an article on what they are and what they tell us:
Demystifying Hearing Testing
As for your ENT, I think you should replace him also.
Usually competent people hire or work with competent people. Clearly your ENT did not hire a competent audiologist, or work with one. I'm not sure what their business arrangement is, but either way this is not a good sign. So I would get another one. When you have a hearing loss you don't want to wait until you have an immediate problem to start finding a good one. Find a good ENT ahead of time. (IMHO, it's the better way to go.)
The only question is ... how soon do you need to replace your ENT?
You didn't tell us about your hearing history. So I don't know if this is a sudden loss or something you had for a while. I also don't know if the audi did enough tests so that it can be determined whether your loss is due to something occuring in the middle ear, inner ear or both, or the auditory nerve.
Depending upon those answers and perhaps other issues, it might be useful for you to have a different ENT right now.
For example, if you had a sudden loss, some ENTs believe that its a good idea to take a short treatement of steroids. If you have a loss due to middle ear issues or something occuring on the auditory nerve ... this would be something you would want to discuss with an ENT -- sooner rather than later.
Esp. if its due to something occuring on the auditory nerve.
( FWIW, if your loss is due to something occuring solely within the inner ear this is good to know also because unless there's a change in one of the battery of audiogram tests -- there's really no need to see an ENT everytime you see an audiologist.
Since once you have a hearing loss its not always easy to tell if you loose more, its recommended to get your hearing tested annually. If your hearing changes you would want to make sure that nothing is going on medically that warrants a disscussion with an ENT (middle ear or auditory nerve issues for example). And of course you would probably want to get your hearing aids adjusted for your change in hearing. The usual recommendation is to get your hearing tested annually. )
