Dr Tito started working in 1978 while her retirement was effective end of last month.
In a statement, NDA president, Dr James Naipao, said: “Your 40 years in service to public health and public service is indeed worth noting and respecting.
“Surely PNG and New Guinea Islands have benefited. Some PNGeans who are now neonates, toddlers, teenagers and adults whom you have touched and saved their lives as a paediatrician will continue to serve and contribute to the development of PNG and New Ireland.
“You planned your retirement well. A couple of years back, National Doctors Association (NDA) assisted you with an advance to build a house. When NDA held one of its quarterly meetings in Kavieng, you thanked NDA for the assistance, and yes, you told NDA that the house was complete.
“At your retirement, NDA also acknowledges your time as one of the senior members of NDA who knew very well that NDA was the vehicle to many opportunities.
“A doctor is always a doctor so it is pretty clear that in retirement from public service, you will continue to serve.
“Dr. Langas Tito....long live and we salute you!”