Winifred Shun Man Chu, DO is a board-certified physician, specializing in Dermatology. With an office conveniently located in Bethpage, NY, Dr. Chu provides expert medical and cosmetic skin care for adults and children. Whether you need treatment for a skin condition or are seeking healthier, younger-looking skin, we can help. Optum dermatologists specialize in treating acne, alopecia, eczema, skin cancer,... Read More about Winifred Shun Man Chu, DO