Champva guide.

[broncovet]

As most of us know, Veteran's spouse and dependents are often not eligible for care at the VAMC.  (It seems like this is done on a case by case basis, if your VAMC has few patients, the spouse may be able to be treated there). Instead, spouses of 100 percent Vets can apply for Champva.  Your Service connection letter may well state that your dependents are eligible for Ch. 35 and/or Champva.  

My spouse has Champva.  As far as I have known, there is no better insurance than Champva.  Rarely would you ever need additional coverage, except, of course, medicare Parts A and B, if eligible for medicare.  

https://www.va.gov/COMMUNITYCARE/docs/pubfiles/programguides/CHAMPVA-Guide.pdf