Fairview to Ortigas commute for a 6 AM shift — are there rides available at 4 AM?

Fairview to Ortigas for a 6:00 AM shift.

Are there already buses, UV Express, jeeps, or other public transportation available from Fairview to MRT North Avenue or MRT Quezon Avenue around 4:00 AM? Also, what’s the most reliable route to get to Ortigas that early?

Thanks in advance!