Answer: Ni Haiqing and Ni Haixia have nothing to do with each other. They just have the same surname, no blood relationship.
Ni Haixia is proficient in yin, yang, wind, water, Yi, and medicine. He is also a famous "ghost genius" in the field of traditional Chinese medicine. He is also called the "last hope" by Americans. This doctor was born in 1952. Ni Haixia from Taiwan.
Ni Haiqing is a charlatan from Jinhua City, Zhejiang Province. He was born in a peasant family, had a primary school education and was not qualified to practice medicine.