Clinical interests for Dr. Zak include achalasia, colectomy (colon resection), and colon cancer. Dr. Zak is in-network for Medicare insurance. She is a graduate of SUNY Downstate Medical Center College of Medicine. She completed her residency training at Stanford Hospital & Clinics. In addition to English, Dr. Zak (or staff) speaks Spanish and Russian. Dr. Zak is affiliated with Mount Sinai Hospital. Dr. Zak welcomes new patients.