Is there a bus from Hangzhou Traditional Chinese Medicine Museum of Huqingyu Hall to Lingyin Temple?

Yes, from the museum, you need to walk north around 0.6 mile to get to Chainuoqiao Bus Stop. Take public bus no.7 to Lingyin. Then walk southwest around 550 yards to arrive at the scenic spot.

You can also take a cab to the temple directly. The cab fare is around CNY 25 in the day time.
Just choose the way you like.