Physicians Our Physicians Dr. Daniel D. So, MD Endocrinology Dr. Mario Chan, MD Endocrinology Dr. Sapountzi, MD Endocrinology Dr. Zubair Ilyas, MD Endocrinology Darlene Jordan, FNP-C Family Nurse Practitioner Margaret Pfister, FNP Family Nurse Practitioner Brina Patel, PA-C Physician Assistant