Tatyana S. Borisiak MD. Internal medicine doctor - Medical nutrition therapy. Dr. Tatyana S. Borisiak was born in picturesque eastern Europe. Both of her parents were veterinarians and she has followed in her family’s medical tradition. She received her medical degree from Ivano-Frankivsk State Medical School in Ukraine in 2000 and completed postgraduate training at Mount Sinai Medical School in New York. She is certified by the American Board of Internal Medicine. She is an active member of the American College of Physicians and the American Medical Association and keeps abreast of the latest developments in her field, including by reading scientific journals and attending seminars.