Dr Gretz specializes in gynecologic oncology and gynecologic minimally invasive and robotic surgery.

Dr Gretz completed fellowship training in gynecologic oncology at the University of Michigan. Dr Gretz has been performing robotic surgery since 2005, and has performed thousands of laparoscopic procedures.



  • Medical school

    • New York Medical College

  • Residencies

    • New York University School of Medicine

  • Fellowships

    • University of Michigan Hospitals

  • Affiliations

    • Lenox Hill Hospital

Locations & insurance

Locations & insurance

62 East 88th Street, 200New York, NY 10128
3030 Westchester AvenuePurchase, NY 10577

Insurance information

Don't be surprised

Learn how you can avoid unanticipated medical bills

Learn more about medical bills