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Billionaire Profile
Prasert Prasarttong-Osoth
Global Rank
#1198

Image: Chainwit. | CC BY-SA 4.0 | via Wikimedia Commons

Prasert Prasarttong-Osoth

CEO, Hospitals
THAILAND
Real-Time Net Worth
$3.532B
Estimated based on Hospitals stock value as of March 6, 2026
-1.23% (24h)
Age
92
Source
Hospitals, airline
Industry
Healthcare
Citizenship
THAILAND

Biography

Dr. Prasert Prasarttong-Osoth, a 92-year-old Thai billionaire of Chinese descent, is a prominent figure in Thailand's healthcare and aviation industries. His net worth is estimated to be 3.5 Billion USD as of 2026. He is the founder of Bangkok Dusit Medical Services (BDMS), Thailand's largest private healthcare group, and Bangkok Airways, a regional airline. Prasert's career highlights include establishing BDMS in 1972 and founding Bangkok Airways in 1968, significantly contributing to Thailand's healthcare and transportation sectors. His business philosophy revolves around diversification and long-term investments in healthcare and aviation.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life

Prasert Prasarttong-Osoth was born on March 22, 1933, in Bangkok, Siam. He is a Thai businessman of Chinese descent. He received his bachelor's degree from the Faculty of Medicine Siriraj Hospital at Mahidol University, qualifying as a medical doctor.

Rise to Success

Prasert's career took a pivotal turn when he founded Bangkok Dusit Medical Services (BDMS) in 1972, which has become Thailand's largest private hospital operator. He also founded Bangkok Airways in 1968. These ventures propelled him to billionaire status.

Key Business Strategies

Prasert's business acumen is evident in his strategic decisions. He took Bangkok Airways public in 2014. His business philosophy emphasizes diversification and long-term investment in the healthcare and aviation sectors. The rebound in travel after the COVID-19 pandemic significantly boosted his wealth, particularly with his stakes in Bangkok Airways and BDMS.

Philanthropy

Prasert is actively involved in philanthropic activities and supports healthcare and educational initiatives to improve social welfare in Thailand. Further details on specific amounts are not readily available.

Career Milestones

1968

Founded Bangkok Airways

Established the regional airline, expanding air travel in Thailand and beyond.

1972

Cofounded Bangkok Dusit Medical Services (BDMS)

Co-founded Thailand's largest private healthcare group, contributing significantly to the country's healthcare sector.

2014

Took Bangkok Airways Public

Made Bangkok Airways a publicly traded company, further expanding its reach and influence.

2021

Returned as Director to BDMS and Bangkok Airways

Returned as director after a ban by the Thai securities regulator on holding board and executive positions.

Philanthropy & Social Impact

Healthcare and Education

Healthcare and educational initiatives

Undisclosed

Supports various healthcare and educational initiatives in Thailand to improve social welfare.

Business Philosophy & Leadership

Notable Quotes

"“I wouldn't say I'm a real stock trader. The shares in the Thai stock market that I hold belong to our company group, such as in BDMS.”"

Leadership Principles

Diversification

Prasert's business philosophy revolves around creating value through long-term investments in multiple sectors, primarily healthcare and aviation.

Patient-Centric Approach

Maintaining a patient-centric approach in healthcare is important to Prasert.

Controversies & Challenges

2019

Insider Trading Fine

In January 2019, Prasert was fined 500 million baht for insider trading of Bangkok Airways shares.

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