Medical Staff Korea

MEDICAL STAFF

Drawing on over 16 years of expertise,
we provide personalized treatments tailored to each individual.

Dr. Yoonsik Sung

Profile

Specialized in Plastic Surgeon

We will provide reponsible and honest care without over-treatment.

ㆍ Specialist Plastic Surgeon at Yaan Clinic
ㆍ Former doctor of Chic plastic surgery
ㆍ Former doctor of JJ plastic surgery
ㆍ Former doctor of Wonjin Plastic surgery
ㆍ Member of the Korean Society of Plastic and Reconstructive Surgeons
ㆍ Member of the Korean Society of Aesthetic Plastic Surgery
ㆍ Member of the Korean Society of Eyelid Surgery Research
ㆍ Member of the Korean Society of Craniofacial Plastic Surgery
ㆍ Member of the Korean Society of Rhinoplasty research Society

[Research presentations at Academic conferences and clinical studies]

ㆍ Correction of sunken upper eyelids using the triple plane technique with hyaluronic acid fillers: Journal of Cosmetic Medicine, 2025;9(1):11-15 (co-author: Dr. Wontak Choi)
ㆍ The Correlation between the Degree of Enophthalmos and the Extent of fractire in Medical Orbital wall Fracture Left Untreated for Over Six Months: A retrospective analysis of 81 Cases at a Single Institution
ㆍ The Significance of Orbital Preservation in Surgery of the Sinonasal Malignancie
ㆍ Surgical treatment of Binder’s syndrome
ㆍ A novel technique for correcting breast implant ptosis
ㆍ Camouflaging a cleft lip scar with single-hair transplantatione
ㆍ Single Hair transplantation for Cicatrical Alopecia
ㆍ A Report of Reconstruction of Cranial Defect by use of Split-rib Cranioplasty

Dr. Dajeong Hyeon

Profile

Aesthetic-Focused Medical Doctor

Dedicated to delivering safe, exceptional, and flawless results.

ㆍ Director of Yaan Clinic
ㆍ Ewha Womans University, College of Pharmacy
ㆍ Kyungpook National University, School of Medicine
ㆍ Board Certified Specialist, Asan Medical Center
ㆍ Medical Advisor to Fibest Co., Ltd.
ㆍ Medical Advisor to Dongkook Pharmaceutical (Bellast)
ㆍ Medical Advisor to BNS MED

Dr. Yookyeong Sim

Profile

Aesthetic-Focused Medical Doctor

Through relentless research, we design confident beauty.

ㆍ Director of Yaan Clinic
ㆍ Former Director, L’Medique
ㆍ Former Clinical Professor, Asan Medical Center
ㆍ Former Clinical Fellow, Seoul National University Hospital
ㆍ Former Resident, Seoul National University Hospital
ㆍ Graduate of Princeton University (USA)
ㆍ Board-Certified Obesity Specialist, Korean Society for the Study of Obesity
ㆍ Full Member, Korean Society for Laser, Dermatology, and Trichology
ㆍ Full Member, Korean Society of Aesthetic and Functional Medicine
ㆍ Full Member, Korean Society of Aesthetic Surgery and Laser Medicine
ㆍ Full Member, Korean Society of Functional Medicine

TV Appearances

ㆍ KBS Good Morning Korea, Regular MC
ㆍ JTBC Crossroads of Life: The Great Choice, Medical Advisor
ㆍ tvN The Power of Superfoods, Medical Advisor
ㆍ Channel A The Secrets of Survival, Medical Advisor
ㆍ TV CHOSUN Medical Documentary: Myeongui Bogam, Medical Advisor
ㆍ TV CHOSUN Life Extension, Medical Advisor

Dr. Giyong Byeon

Profile

Aesthetic-Focused Medical Doctor

We strive to deliver safe, carefully considered treatments with results patients can truly trust.

ㆍ Director of Yaan Clinic
ㆍ Former Director of The Dream Clinic
ㆍ Former Director of Rebirth Clinic
ㆍ Member of Korean Society of Laser, Dermatology & Trichology
ㆍ Member of Korean Society of Aesthetic and Laser Medicine
ㆍ Member of Korean Society for the Study of Obesity
ㆍ Medical Advisor to Fibest Co., Ltd.
ㆍ Medical Advisor to Dongkook Pharmaceutical (Bellast)
ㆍ Medical Advisor to BNS MED

Dr. Jiuk Choi

Profile

Specialized in Aesthetic and Cosmetic Procedures

Committed to addressing patients’ concerns with empathy and personalized care.

ㆍ Former Director of Yaan Clinic
ㆍ Former Director of Laren Clinic
ㆍ Former Director of Yonsei Lamisyu Clinic
ㆍ Lifetime Member of the Korean Society for Aesthetic Medicine
ㆍ Lifetime Member of the Korean Association for Laser,
ㆍ Consultant for Dongkook Pharmaceutical Bellast
ㆍ Consultant for Fabist Co., Ltd.
ㆍ Consultant for BNS MED

Dr. Seonggeun Hwang

Profile

Specialized in Petit, Body contouring Surgery

Relentlessly researching and confidently designing beauty.

ㆍ Director of Yaan Clinic
ㆍ Former Chief Director of Channel Plus Clinic
ㆍ Regular Member of Korean Society for Aesthetic and Laser Medicine
ㆍ Regular Member of Korean Society for Aesthetic Surgery
ㆍ Regular Member of Korean Society of Aesthetic Plastic Surgery
ㆍ Regular Member of Korean Society for Anti-Aging Medicine
ㆍ Regular Member of Society for Nasal Research

Dr. Yongju Kim

Profile

Aesthetic Plastic Surgery Specialist

We place the highest priority on patient satisfaction.

ㆍ Former Director of Yaan Clinic
ㆍ Former Director of Abijou Clinic
ㆍ Master’s Degree, The Ohio State University , Pre-medical Department
ㆍ Member, Korean Society for Aesthetic and Cosmetic Laser Surgery
ㆍ Member, Korean Society for Laser Medicine and Surgery
ㆍ Member, Korean Association for Laser, Dermatology, and Trichology
ㆍ Member, Korean Society of Aesthetic Medicine
ㆍ Member, Korean Society of Primary Care

Dr. Wontak Choi

Profile

Specialized in Petit, Body contouring Surgery

I aim for the safety and happiness of my customers

ㆍ Current Yaan Clinic’s Founder Chief Doctor
ㆍ Specialized in Petit, Body contouring
ㆍ Master of Science, College of Medicine, Seoul National University
ㆍ Member, Korean Society for Aesthetic and Cosmetic Laser Surgery
ㆍ Doctor Responding to FQA in Collaboration with Naver at
ㆍ Visiting Professor at Hanyang University College of Medicine
ㆍ Chief Doctor of Ivy Plastic Surgery Clinic
ㆍ Chief Doctor of LienJang Plastic Surgery Clinic
ㆍ Chief Doctor of Envy Clinic
ㆍ Chief Doctor of Diete Skin, Obesity Clinic
ㆍ Director of the Petite Surgery Research Association
ㆍ Academic Director of the Korean LaserSkin & Hair Society
ㆍ Key Doctor at Germany MERZ (Manufacturer of LAYER and Xeomin)
ㆍ Training Instructor for Daewoong DNC Filler
ㆍ Training Instructor for JW PharmaceuticalFiller
ㆍ Training Instructor for Amorepacific Pharmaceutical Filler
ㆍ Correction of sunken upper eyelids using the triple plane technique with hyaluronic acid fillers: Journal of Cosmetic Medicine, 2025;9(1):11-15 (co-author: Dr. Yoonsik Sung)

FAQ

What qualifications and experience do the medical professionals at Yaan Clinic have?

Yaan Clinic’s medical team includes practitioners with over 16 years of experience in dermal fillers, aesthetic medicine, and anti-aging treatments, alongside other medical professionals with diverse clinical backgrounds.

Our medical team recommends suitable treatments based on each patient’s individual skin condition and concerns, prioritizing patient safety and natural-looking results.

Are treatments at Yaan Clinic performed directly by licensed medical professionals?

Yes. All medical procedures at Yaan Clinic, including laser lifting treatments, Botox, dermal fillers, and skin boosters, are performed directly by licensed medical professionals responsible for the respective treatments.

Before each procedure, our medical team evaluates the patient’s skin condition, facial structure, and aesthetic goals to develop a personalized treatment plan.

What aesthetic and anti-aging treatments are available at Yaan Clinic?

Yaan Clinic offers a wide range of aesthetic and anti-aging treatments, including Ultherapy Prime, Thermage FLX, Sofwave, ONDA Lifting, Botox, dermal fillers, Rejuran, Juvelook, RE2O Skin Booster, and Sculptra.

Patients can receive personalized consultations to determine the most suitable treatments based on their individual skin conditions, concerns, and aesthetic goals.

Can international patients receive consultations directly with the medical team at Yaan Clinic?

Yes. Yaan Clinic welcomes international patients from around the world, including North America, South America, Europe, East Asia, Southeast Asia, the Middle East, Oceania, and Africa.

We provide English and Chinese interpretation services to facilitate clear communication between international patients and our medical professionals.

Regardless of nationality, every patient can receive a personalized, one-on-one consultation tailored to their skin condition, individual concerns, and treatment goals.

Can I receive treatment on the same day as my consultation at Yaan Clinic?

Yes. Yaan Clinic offers same-day treatments following a consultation with our medical team.

However, same-day treatment availability may vary depending on the patient’s skin condition, overall health, type of procedure, and appointment availability on the day of the visit.