Andersen AFB is still there, though, just administratively part of NB Guam.
More broadly, the bases haven't been closed for kicks, it's because they're expensive to maintain and it also depends on the function, and whether said function is necessary, or whether it can be done at another location, or whether that function is even necessary. In 1989 we had 18 divisions (not all equal, though, with the roundout concept...) but we're now down to ten with an eleventh as a deployable HQ rather than a functional combat formation.
Honestly, I would say for the most part we're in decent shape. Troops loved Fort Ord, sure, and the Presidio of San Francisco has a lot of history, but at the same time neither really wasn't and isn't necessary when we have Lewis-McChord on the coast. Plus, since Ord closed, it's allowed Monterey to expand significantly. Treasure Island is a possibility as well, but even that was of questional value.
The main drawdowns have been overseas (particularly in Germany). We still have some, but this isn't the 1987 Fulda Gap Games where we need four divisions and two ACRs parked on the Inner German Border.
What we really should be looking at are more technical issues (such as not having every carrier assigned to the Atlantic homeported in Norfolk; at least send one to Mayport. I don't think Newport can handle a Nimitz though, otherwise I'd suggest a second one there.
We also have a number of bases that were transferred to the U.S. Army Reserve and the National Guard -if we *really* need the capacity we can get it (Hunter Liggett in California, Indiantown Gap in Pennsylvania, Lee and Pickett in Virginia, McCoy in Wisconsin...there are a bunch).