Hello,

Yes you can surely become an IPS.  The basic eligibility criteria states that you need to have a Graduate Degree from a recognized University/Institute. After this you can appear for CSE exam conducted by the UPSC which will be conducted in three stages (preliminary, mains and interview) and qualify each round in order to get selected for the training.

SO you can become an IPS officer after completing your Medical degree provided that you qualify the three stages of the UPSC CSE exam.

Good Luck