Nephrologist are clinical Physicians who specializes in treating patients having Kidney disorders. In order to become a Nephrologist, one need to complete MBBS course followed by DM or MD in Nephrology. SO in order to be a Nephrologist you need to have a clinical background.

After BSc Renal Dialysis you can't be a Nephrologist but after it you can become Dialysis Technician at hospitals where Dialysis is provided.

For more information regarding Nephrology you can consider the link below:

https://www.careers360.com/courses/nephrology-course

I hope this helps. Wish you a great day!