Hi there- the Dermatologist that I go to is Dr. Karen Zapata Montenegro.
Her office is at Hospital Chiriquà in David, #301 in the tower section on the top floor, and is called Clinica Flor de Piel.
The phone number is 777-8091 and her cell number is 6554-9475.
Dr. Karen is very gentle and soft-spoken. She understands and speaks English quite well, and is very thorough.
Keep in mind that Feb. 13-18 is Carnival here in Panama, and many offices and businesses may be closed.
I suggest you call her cell phone (rather than her office number) to find out when she will have office hours next week.
Best wishes, Linda