Our Doctors
The doctors at Dr. Smile Medical Group are a team of exceptional physicians who have come from international hospitals and top-tier medical institutions to join us full-time after stepping out of the traditional medical system. They are dedicated to providing diagnostic and treatment services, conducting medical research, developing clinical technologies, and delivering educational training focused on lower limb vein diseases.
Our team of doctors embraces an international approach to diagnosis and treatment, incorporating advanced techniques. We are committed to offering patients safe, minimally invasive, personalized, cutting-edge, and pleasant healthcare services. Currently, we have expert teams based in Beijing and Shanghai, with over 20 years of clinical experience and tens of thousands of cases treated. Our patients come from dozens of countries and regions worldwide.
Dr. Qiang Zhang
Vascular surgeon, Chief
Dr. Xin Du
Vascular surgeon,Attending
Dr. Xin Du is the attending doctor and medical director of Dr. Smile Vein Center Beijing.
She holds a Ph.D. in Vascular Surgery and specializes in the CHIVA technique for the diagnosis and treatment of lower-limb varicose veins. Dr. Du is a member of the International Expert Group of the Global CHIVA Training and Certification Program and has served as a visiting scholar at the Venous Disease Center in Cremona, Italy.
Dr. Du also serves as the General Secretary of the National Venous Disease Specialty Committee and the General Secretary of the Global Venous Forum. She has been invited to deliver keynote presentations at numerous national and international academic conferences and has published several peer-reviewed papers, including SCI-indexed articles. Dr. Du is also a contributing editor of the Chinese edition of the internationally renowned textbook Rutherford’s Vascular Surgery.
Dr. Lei Su
Vascular surgeon,Attending
Dr. Lei Su is the attending doctor at Dr. Smile Vein Center Beijing and the medical director of Dr. Smile Vein Center Jinan.
He specializes in the CHIVA technique for the diagnosis and treatment of lower-limb varicose veins. Dr. Su is a member of the Global CHIVA Training and Certification Program and has served as a visiting scholar at the Venous Disease Center of Nishinokyo Hospital in Japan.
Dr. Su holds multiple key academic positions, including Standing Committee Member of the National Venous Disease Specialty Committee, Member of the Vascular Surgery Branch of the Chinese Medical Doctor Association, and Member of the Vascular Surgery Branch of the China International Exchange and Promotive Association for Medical and Health Care (CPAM).
He was invited as a demonstration expert for the inaugural CHIVA Live Broadcast and Hemodynamics Symposium and is recognized for his expertise in minimally invasive venous treatments. Dr. Su is also the author of the popular science book Legs Age Before the Body, which raises public awareness of venous health and prevention.
Dr. Jianping Deng
Vascular surgeon,Attending
Dr. Jianping Deng is the attending doctor and medical director of Dr. Smile Vein Center Shenzhen.
He holds a Master’s degree in Surgery and specializes in the CHIVA technique for the diagnosis and treatment of lower-limb varicose veins. Dr. Deng also serves as a consulting physician at the Zhang Qiang Medical Group African Venous Disease Center.
He is a member of the International Expert Group of the Global CHIVA Training and Certification Program, a member of the National Venous Disease Specialty Committee, and an international member of the American Venous Forum. Dr. Deng has been invited to present at numerous international academic conferences and has published multiple papers in professional international journals.
Dr. Yijian Gu
Vascular surgeon,Attending
Dr. Yijian Gu is the attending doctor of Dr. Smile Vein Center Shanghai, currently based at Dr. Smile Vein Center Chengdu.
He trained under the renowned vascular surgeon Dr. Zhang Qiang and specializes in the CHIVA technique for the diagnosis and treatment of lower-limb varicose veins. Dr. Gu is recognized as the physician with the largest number of CHIVA-treated lower-limb varicose vein cases in Southwest China.
He serves as a member of the Medical and Quality Safety Committee of Zhang Qiang Medical Group, a committee member of the 2023 International Venous Forum, and an editor for the International Venous Forum official WeChat account.
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Dr. Xuan Su
Vascular surgeon，Attending
Dr. Xuan Su is the attending doctor of Dr. Smile Vein Center Shanghai.
She holds a Master’s degree in Vascular Surgery and specializes in the CHIVA technique for the diagnosis and treatment of lower-limb varicose veins. Dr. Su is a member of the Global CHIVA Training and Certification Program and serves as a committee member of the 2023 International Venous Forum.
She was the host of the inaugural China-Africa Venous Forum in 2024 and was invited to deliver a keynote presentation at the 2024 Asian Vascular Surgery Annual Meeting.