PATIENT PORTAL BILL PAY. Home. ... Named by his patients as "Compassionate Doctor" and "Patient's Choice", Dr. Knoer joined Peachtree Women's Specialists in 2007. He grew. Read more. Sheena Harmon, MD. Obstetrics & Gynecology. Dr. Sheena Harmon is board certified in obstetrics and gynecology. She graduated Summa Cum Laude with a Bachelor of Science.