His name is now synonymous with surgical excellence, compassionate care, and natural, life-changing results.

Thousands of patients from around the world—including the US, UK, Australia, and Europe—have trusted him with their transitions. As the founder and CEO of WIH International Hospital in Bangkok, Dr. Chettasak continues to set the standard for patient-centered, inclusive care in Thailand and beyond.

Long-time patients and those familiar with his work may know him by his former name, Dr. Chettawut, a distinguished plastic and reconstructive surgeon serving as the CEO of WIH International Hospital, founded his the renowned Chettawut Plastic Surgery Clinic (CPSC) in 1998. Operating consistently within this facility, he has acquired significant expertise in his field over the years, which quickly became a top destination for international patients seeking gender-affirming and aesthetic procedures.

Under his new name, Dr. Chettasak, he carries forward the same dedication and artistry that made him a trusted name in transgender healthcare. His vision expanded from a specialized clinic to a full-service, state-of-the-art hospital, WIH International, designed to provide comprehensive care in a nurturing environment.

The WIH Hospital project began in 2012, featuring an architectural design inspired by origami, the Japanese art of paper folding. This design symbolizes transformation, precision, and artistry—qualities that resonate deeply with the work of skilled surgeons who reshape and enhance lives.

Today, Dr. Chettasak Tulayapanich remains at the forefront of gender-affirming surgery in Asia and globally. His legacy continues to inspire new generations of surgeons while transforming lives every single day.

Whether recognized as Dr. Chettawut in the past or as Dr. Chettasak today, his unwavering commitment remains the same: to help every individual feel truly at home in their body, with results that honor both identity and beauty.

Dr. Chettasak Tulayapanich, MD, CEO of WIH International Hospital. For more than 30 years, have been privileged to serve and be trusted by the transgender community worldwide. His lifelong dedication to transgender healthcare laid the foundation for WIH International Hospital, which exists today as a space of equality, inclusivity, and transformative care.

WIH is more than a hospital — it is a place where everyone can be their true selves with pride. For us, healthcare for LGBTQ+ people is a right, not a privilege and proud to continue advocating for diversity, dignity, and equality in every aspect of patient care.

• Over 20 years of specialized experience in gender-affirming and aesthetic surgery
• Global recognition, trusted by thousands of patients worldwide
• Pioneering vision as founder and CEO of WIH International Hospital
• A compassionate philosophy committed to truly affirming, transformative outcomes

Dr. Chettasak Tulayapanich continues to be at the forefront of gender-affirming surgery, helping individuals feel truly at home in their bodies and live their lives with confidence. His legacy of excellence and compassion inspires new generations of surgeons and changes lives every day..

• Over 20 Years of Specialized Experience: A dedicated focus on gender-affirming and aesthetic surgery.
• Global recognition, trusted by thousands of patients worldwide
• Pioneering vision as founder and CEO of WIH International Hospital
• A compassionate philosophy committed to truly affirming, transformative outcomes

With more than 30 years of specialized experience, Dr. Chettasak is one of the most sought-after surgeons for male-to-female (MTF) and Female to Male (FTM) gender-affirming surgery. His expertise includes:

Vaginoplasty:

• Penile Inversion Vaginoplasty
• Peritoneal Pull-Through (PPV) Vaginoplasty
• Sigmoid Colon Vaginoplasty
• Innovative Hybrid Techniques for natural depth and sensation

Facial Feminization Surgery (FFS)

Breast Augmentation & Body Feminization

Complex Reconstructive Procedures

FTM Top Surgery

His surgical hallmarks are natural and refined results, an exceptional safety record, and a deep commitment to each patient’s well-being.