Doctors Doctors Our Specialists Internist/Nephrologist Dr. Sheyla Zelaya and Internist Dr. Ana Karovska have built a model for their practice that centers on their patients as a whole, understanding the different dimensions of their needs and concerns. Sheyla Zelaya, MD > Board eligible in Nephrology - Internal Medicine More Ana Karovska Vuchidolov, MD > Board Certified - Internal Medicine More