I would contact tricare and give them the entire backstory of events that happened…then would let them know of all the medical bills that have accumulated thus far and ask what their timeline is on reimbursement for services rendered already…then I would ask them about ongoing care for his dementia in a care facility in Thailand and how or if they will pay for it.
I would even Mention the plane ride over any all extras you had to pay for from medicine to medical Help on the journey etc to see how I could maximize the entire claim.
Because my Philosophy is this…never tell yourself NO let them tell you NO…then you ask what do I have to do to get you to say YES.. but that is me
one more thing…go into the VA website and sign up for the Foreign Medical Program (FMP) with his current Thai address…this will cover all his medical needs and prescriptions for his VA disabilities that he has and any secondaries
Secondaries are anything a Dr can link to his service connected disability (hypertension even if 0% has as a secondary: dialysis, stroke, heart attack, kidney failure, etc as long as the Dr says it happened because of hypertension)
it’s a disability claim so you will need a current evaluation by a Dr and nexus letter…if he has a current Dr they can write it up or (language barrier is a problem in Thailand)
Or contact this company in Pattaya they do VA related medical services