Hi guys, Anyone have any suggestion of good cardiologist and Nephrologist?

Recently went for employment check up in Singapore, and found out very high blood pressure of 260/115 and got admitted to hospital for 2 nights, so far test result out no abnormality in my heart and kidney through ultrasound. Blood & urine test shown kidney might have some issue but it may due to high blood pressure that time cause the test not accurate. I'm planning to go for second opinion in Malaysia and if any medication require, I prefer to do it in Malaysia as I have no insurance coverage in Singapore which cost a bomb there 

If anyone have any recommendation of cardiologist and Nephrologist, do let me know, prefer area around Selangor/Kuala Lumpur.

Thanks in advance!