Vivienne S. Yoon, MD5220 W University Dr Ste 250, ABOUT ME OFFICE INFO1254365 Endocrinology Specialists of McKinney5220 W University Dr Ste 250, McKinneyPhone: TXFax: 75071 REQUEST AN APPOINTMENT First Name Last Name Cell Email Payment Method Select Payment Insurance (PPO) Insurance (HMO) BCBS Advantage HMO Insurance (EPO) TRICARE (Military) Medicare Medicaid Cash Uninsured Patients Insurance Provider Name Preferred Appointment Date/Time SEND