@engineer My audiologist and otolaryngologists reside in the same offices, an ideal arrangement I think. Whether you go to an otologist, otolaryngologist, or audiologist would depend on what your problem is. If just hearing, then an audiologist, but if you think other factors are affecting your hearing then you probably want to see an otologist ot otolaryngologist.

To my knowledge, only an audiologist tests hearing, but I could be wrong. I am not familiar with otologists, I had to google that, but they sound very similar to otolaryngologists, just more specialized.
JK