Prasert Prasarttong-Osoth: Biography, Career, and Business Insights

Prasert Prasarttong-Osoth’s Profile Summary

Company	Bangkok Airways
Position	Chairman of the Board at Bangkok Airways. He previously held the positions of Vice Chairman and Chief Executive Officer at the company
Source of wealth	Healthcare investments and operations through Bangkok Dusit Medical Services (BDMS), Aviation sector through Bangkok Airways, Real estate and other holdings
Also known as	Dr. Prasert Prasarttong-Osoth is also known as a prominent healthcare entrepreneur, an aviation industry leader, and a philanthropist.
Age	92
Education	Siriraj Medical School, University of Medicine - Bachelor's Degree in Medicine
Citizenship	Thai
Residence	Bangkok, Thailand
Family	Prasert Prasarttong-Osoth's family includes several key members who are actively involved in his business ventures and other holdings. This primarily includes his daughter, Paramaporn Prasarttong-Osoth, who holds a prominent position in their companies.
Website, Social Media	https://www.bangkokair.com

Prasert Prasarttong-Osoth’s biography

Dr. Prasert Prasarttong-Osoth is a prominent Thai businessman and a former surgeon, born on March 22, 1933. He is well-known as the founder and owner of Bangkok Airways and Bangkok Dusit Medical Services (BDMS), Thailand’s largest private healthcare network. Prasert earned his medical degree from the Faculty of Medicine at Siriraj Hospital, Mahidol University, and furthered his education at Imperial College London. Starting his career as a medical doctor, he transitioned into business and founded BDMS in 1972. Under his leadership, BDMS expanded into a regional healthcare powerhouse with a wide network of hospitals across Thailand. Prasert also established Bangkok Airways, which began as a small charter service and grew into a significant regional airline. His business acumen extends to various sectors, including healthcare, aviation, and media, making him a notable figure in Thai business circles. Despite his success, Prasert faced legal issues in 2019 when the Securities and Exchange Commission of Thailand fined him and his daughter 500 million baht for insider trading of Bangkok Airways share

How did Prasert Prasarttong-Osoth make money?

Prasert Prasarttong-Osoth makes money in the following areas:

Healthcare investments and operations through Bangkok Dusit Medical Services (BDMS), Aviation sector through Bangkok Airways, Real estate and other holdings
What is Prasert Prasarttong-Osoth net worth?

As of 2025, Prasert Prasarttong-Osoth’s net worth is estimated to be $3.7B.

What is Prasert Prasarttong-Osoth also known as?

Dr. Prasert Prasarttong-Osoth is widely recognized for his contributions across multiple sectors. Beyond his role as the founder of Bangkok Dusit Medical Services (BDMS), one of Thailand's largest healthcare networks, he is also the driving force behind Bangkok Airways, a regional airline serving Southeast Asia. His entrepreneurial vision and leadership in the healthcare industry have transformed BDMS into a key player in Thailand's private healthcare system. In addition to his business pursuits, Dr. Prasert is actively involved in philanthropic efforts, supporting various healthcare and educational initiatives to improve social welfare in Thailand.

Prominent achievements of Prasert Prasarttong-Osoth

Founder and Chief Executive Officer of Bangkok Dusit Medical Services, the largest private healthcare group in Thailand. Chief Executive Officer and Vice Chairman of Bangkok Airways. Notable for transforming Bangkok Dusit Medical Services into a key player in the regional healthcare sector. Previously listed by Forbes with an estimated net worth of $2.5 billion as of 2015

What are Prasert Prasarttong-Osoth’s key insights?

Prasert Prasarttong-Osoth's business philosophy revolves around diversification and creating value through long-term investments in multiple sectors, primarily healthcare and aviation. He believes in integrating professional expertise (as a doctor) with entrepreneurial skills, maintaining a patient-centric approach in healthcare, and ensuring high-quality services. His approach reflects a focus on sustainability, quality, and customer satisfaction.

Prasert Prasarttong-Osoth’s personal life

The Prasarttong-Osoth family has a significant presence in Thailand’s corporate world. Prasert's daughter, Paramaporn Prasarttong-Osoth, has made a notable debut in the wealth rankings, with a net worth of approximately 13.85 billion baht as of recent data. Additionally, the family's total stock holdings in various ventures, including Bangkok Airways and Bangkok Dusit Medical Services, have positioned them among the richest families in Thailand

Useful insights

Understanding market forces

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Nassim Nicholas Taleb – "The Black Swan"
- Summary:
  
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John Maynard Keynes – "The General Theory of Employment, Interest, and Money"
- Summary:
  
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- Why read it:
  
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