Dr. Landsborough's clinic in Changhua was the only Western medical facility in central Taiwan at the time, and as word began to spread about the doctor's skill and kindness, he became regarded locally as a "living Buddha." In the town of Changhua a certain phrase became current: "There's the Matsu Temple at the South Gate, and Dr. Lan's clinic at the West Gate."
由於當時中部沒有其他的西醫院，加上蘭醫生的醫德、醫術漸漸被肯定與傳頌開來，在彰化，人稱蘭大衛是「活佛」，彰化流傳著一句話：「南門媽祖宮，西門蘭醫生。」