This could be an abbreviation for Doktora, the Spanish-derived Filipino title for a female doctor.
If the woman doctor’s name is Aurora Villanueva, you may see her name shortened to Dra. Villanueva.
This is a bit old-fashioned though still in use. Most doctors these days, whether male or female, simply use Dr. as their abbreviated title.
Dra. Vicki Belo is a famous celebrity dermatologist in the Philippines that many people refer to as Doktora.
