He now employs nearly 20,000 healthcare professionals across the Middle East and India. While the company is particularly strong in the UAE, it moved into Bahrain in 2015 and increased its stake in Sanad Hospital in Riyadh, in October 2015. It also has a handful of facilities in both Oman and Qatar. He is also building ambulatory clinics in the Philippines.

With trade relations between the UAE and India growing, particularly in recent months, Moopen has said he plans to ramp up investments in his home country, where he already has 10 hospitals and a medical college.

In the past year, he has paid particular attention to Kerala, his home state in India, and where he is already the largest employer in the healthcare sector. In June, he announced $90m worth of investments in three projects in the state, including a 500-bed super-specialty hospital built on a greenfield in the capital Thiruvananthapuram.

The group is also building a 250-bed multi-specialty hospital in Kannur and a 300-bed specialty hospital in Kozhikode. In addition to the expansion of a facility in Calicut, Aster DM says it will add 1,000 hospitals to its existing 2,000 beds in the state.

The company has also recently branched out into sports medicine for the, opening two centres in Kerala. Cricketing legend Sachin Tendulkar inaugurated the centres, which will cater to both professional and amateur sportspeople as the sports medicine industry in India is estimated to more than double to $554m by 2022, according to Data Bridge Market Research.

Aster DM Healthcare also hopes the centres will support and encourage the emergence of world-class athletes in India.

Moopen is also known for his philanthropy, giving away about 20 percent of his wealth, including a donation of $2.7m to Al Jalila Foundation, a UAE-based charity that promotes medical education and research.