Dr. Prasert Prasarttong-Osoth, M.D., is a Thai physician, the self-made billionaire Founder and Executive of Bangkok Airways (SET: BA) and Bangkok Dusit Medical Services (BDMS) (SET: BDMS), one of Thailand's largest private hospital chains. His career is rooted in medicine, aviation, and entrepreneurial audacity.

Prasert holds an M.D. (Doctor of Medicine) degree from Siriraj Hospital, Mahidol University. His philosophical approach centers on scale, quality service, and long-term asset hold in the essential healthcare and tourism sectors. He is one of the most influential figures in Thailand's private health and aviation markets.

• Bangkok Dusit Medical Services (BDMS) (Founder & Executive): The core publicly traded asset, one of Thailand's largest private hospital chains (operating over 50 hospitals across Thailand).
• Bangkok Airways (Founder): The private airline he founded (known for its exclusive airport concessions and boutique service).
• Medical Pioneer: His success is built on clinical excellence and scale management of private healthcare services (a major component of Thailand's medical tourism industry).
• Investment Strategy: His philosophy is rooted in long-term investment in infrastructure (hospitals, airports) and leveraging the massive Thai tourism and healthcare growth story.

Dr. Prasert Prasarttong-Osoth's strategic genius was his commitment to integrating high-quality services. 1972: BDMS. He co-founded the precursor to BDMS, recognizing the immense, untapped domestic and international demand for private healthcare. 1984: Bangkok Airways. He founded Bangkok Airways, specializing in niche regional routes and owning/operating exclusive airports (a key structural advantage). His structural contribution is immense: pioneering the medical tourism industry in Thailand and developing essential aviation and healthcare infrastructure.

The companies successfully executed their IPOs on the Stock Exchange of Thailand (SET). His wealth is secured by the colossal, long-term, stable profitability of the global private healthcare and aviation sectors.

Dr. Prasert Prasarttong-Osoth's social impact is structural, stemming from BDMS's role in providing essential private healthcare services to millions of Thai and international patients (a major component of Thailand's medical tourism revenue). His Bangkok Airways provides essential air connectivity to regional tourism destinations. His personal philanthropy supports various community and educational initiatives.

His structural contribution is tied to the successful industrialization and scale of the Thai private healthcare and aviation sectors.

Dr. Prasert Prasarttong-Osoth maintains the professional, composed style of a corporate executive. His attire is consistently formal and high-quality, favoring tailored suits. His aesthetic reflects serious authority and stability, typical of a leader in the global healthcare and aviation sectors.

Residing in Bangkok, Thailand, his luxury is the immense security and financial reward derived from his multi-billion dollar fortune. His life is dedicated to investment strategy, healthcare management, and aviation governance.