Moira O'Riordan

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Moira O'Riordan

Moira O'Riordan, MD

Director of Woman's Imaging and Co-Director of Stamford Health Breast Center


Member of: Stamford Health Medical Group

About Me

Dr. O’Riordan graduated from the University of Chicago Medical School. After completing a Diagnostic Radiology residency at the University of California, San Francisco (UCSF), she continued at UCSF for specialized fellowship training in Women’s Imaging.

Dr. O’Riordan is expert in breast imaging,including 3D mammography, screening and diagnostic ultrasound, and breast MRI. She also performs minimally invasive breast biopsy.

Before joining Stamford Health Medical Group, Dr. O’Riordan served as director of a growing women’s imaging clinic in Washington State where she focused on improving the patient experience during a breast evaluation. She is excited to join a women’s imaging team that delivers such compassionate and comprehensive care.



Special Interests

Complex breast management and patient-focused care


  • Breast Imaging


Medical School

University of Chicago Pritzker School of Medicine


UCSF Medical Center At Parnassus


UCSF Medical Center At Parnassus

Board Certifications

  • Diagnostic Radiology - American Board of Radiology


  • Alpha Omega Alpha, University of Chicago (Illinois Beta Chapter)
  • Radiological Society of North America
  • American College of Radiology
  • Society of Breast Imaging
  • Margulis Society at UCSF

If you are in need of emergency care, call 911.

The majority of the physicians on the Stamford Hospital Medical Staff are not employees or agents of the Hospital. They are independent practitioners who have been granted the privilege of using the Hospital's facilities for the care and treatment of their patients. This includes, but is not limited to, emergency department physicians, anesthesiologists, radiologists, surgeons, cardiologists, obstetricians, pathologists and other consultants who may treat patients.

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