Wells MP James Heappey says the temporary closure of inpatient beds at Shepton Mallet Community Hospital is "very disappointing".
10 have been closed because of staffing problems there.
The Conservative politican says he is working with the Somerset Partnership NHS Foundation Trust (SOMPAR) to make sure they will re-open as soon as possible.
He said: " The temporary closure of beds at Shepton Mallet Community Hospital is very disappointing. I have spoken to the Chief Executive of SOMPAR and understand the staffing challenges. I look forward to these being resolved as quickly as possible over the next few months.
"I will be raising this issue with Ministers urgently and will meet with the League Of Friends and Save Our Hospital Beds campaign group. I will also be seeking assurances from Somerset Clinical Commissioning Group and SOMPAR about the planned redevelopment of Shepton Mallet Community Hospital and would like to know this temporary setback in no way affects these plans.
"A temporary closure is unfortunate but anything permanent will not be tolerated and the focus must now be on making sure all the beds are back available and the hospital is sufficiently staffed as soon as possible."