8.8 kilometers. According to Baidu map, Ankang Railway Station is 8.8 kilometers away from Gaoxin Branch of Chinese Medicine Hospital, and it takes 45 minutes by bus. The specific route is as follows:

1. First, take bus No.25 at the railway station and get off at Gaoxin Branch Station of Chinese Medicine Hospital.

2. Secondly, walk along Innovation Road120m, turn right and cross the road to continue.

3. Finally, continue along Innovation Road 170 meters, turn right and walk for 20 meters, and you can reach the High-tech Branch of Chinese Medicine Hospital.