郑慧美医生是新加坡卫生部认证的专科医生，执业领域涵盖普通皮肤科、皮肤外科及医学美容，尤其专注于皮肤癌的预防与治疗。她同时持有新加坡和澳大利亚的完整行医资格，拥有超过10年的临床经验。

Prior to setting up private practice, Dr Cheng was a specialist Dermatologist at the National Skin Centre and Khoo Teck Puat Hospital. She underwent specialised training at the Melanoma Institute of Australia in Sydney and holds a Diploma in Child Health. Her global experience has given her confidence in treating patients of different ethnicities, as well as babies and young children.

Dr Cheng was awarded a Master of Philosophy from the University of Sydney for her thesis on skin cancers. A strong advocate for research to advance patient care, she has worked with institutions such as Johns Hopkins University and Asan Medical Centre, and is an invited speaker for local and international medical conferences.