Was this doctor an ENT? If that's the case, then he's probably not the one to be doing a tinnitus assessment. When I was in, the ENT at the base hospital referred me to an audiologist for a tinnitus assessment. It's a specific battery of tests that would never normally be done as part of a normal hearing test - http://journals.lww.com/thehearingjournal/Fulltext/2001/11000/What_the_practitioner_should_know_about_tinnitus.9.aspx
The tinnitus assessment takes over an hour to complete, and is much more in depth than a simple audiogram. You'd be listening to speech/sounds while noise is also being generated into your ear, and other more complicated testing. The report generated would describe the perceived frequency and amplitude of the tinnitus, and also describe if anything aids in reducing its effect. This is critical information if a masker or hearing aid was ever going to be prescribed. I don't have a warm fuzzy feeling that you had an actual tinnitus assessment, from the way you're describing it.