Arcapita Group and Bahrain Mumtalakat Holding sold their ownership stake in Abu Dhabi-based NAS Neuron Health Services. The two companies partnered to acquire an equity stake in NAS United Healthcare Services in 2017. Umair Nizami is the Managing Director of Neuron, as well as CEO of Dubai Wing. NAS Neuron is one of the largest private TPAs of medical claims in the GCC region.