Can I get into NUS with a diploma in Nursing?

Can current students with diploma in Nursing get into NUS to study Masters of Medicine(M.MED)?

No, you wouldn't be able to. The above answerers have provided you with the relevant information.

The route for you to further your studies would be to get a Bachelor in Nursing instead.

You can check this link for some of the possible avenues:
http://app.healthsciencepro.gov.sg/nursi...

masters in med? no way!
You have to be a doctor first before you can obtain a masters of medicine.
You are better off aiming to obtain a degree in nursing frist, and subsequently a masters in nursing.
For a nurse to be a doctor is quite almost an impossibility; the intellectual demands are quite cast.

Check out their website: http://medicine.nus.edu.sg/postgrad/adm_...

But in brief these are the admission requirements:

A relevant Bachelor's degree with honours (at least second class) or

The degree of Bachelor of Medicine and Bachelor of Surgery or

The degree of Bachelor of Dental Surgery and

The ability to pursue research in the candidate's proposed field of advanced study.

yes

sure

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nope, but you can consider try getting into NTU Nursing. Their intake is only 50 per year.