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Associate Professor of Obstetrics and Gynecology Director, Women's Cancer Survivorship

UChicago Faculty Physicians hold faculty positions with the University of Chicago and provide care for patients on the academic health system’s main campus in Hyde Park and in care centers throughout the Chicago region.

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Mercedes Castiel, MD, is a gynecologist with a specialized focus and expertise in cancer survivorship. Dr. Castiel is dedicated to helping her patients improve their quality of life and maintain physical and psychosocial wellbeing. Recognizing that her patients are not defined by a cancer diagnosis, her approach is to treat each patient as a woman first. She starts by addressing general gynecologic issues and concerns, then addressing cancer history or risk.

Dr. Castiel emphasizes an individualized approach to treatment, because no two women experience an illness in the exact same way. She has experience in helping cancer survivors to maximize fertility options or manage menopause and sexuality.

Dr. Castiel’s extensive experience includes developing a program to meet the needs of women who have elevated cancer risk or a family history of cancer. She has particular experience in cancer risk associated with hereditary breast-ovarian cancer syndromes linked to genetic mutations, such as BRCA or a mutation associated with Lynch syndrome or Fanconi anemia. Dr. Castiel is also certified in cancer risk genetics. With this background and expertise, she also strives to make cancer risk assessment and management services available to all women.


Areas of Expertise

Medical Education

  • University of Toronto Faculty of Medicine


  • Mount Sinai Hospital


  • University of Toronto Faculty of Medicine

Memberships & Medical Societies

  • American College of Obstetricians and Gynecologists
  • American Society of Clinical Oncology
  • North American Menopause Society
  • Royal College of Physicians and Surgeons of Canada
  • Aetna HMO (specialists only)
  • Aetna POS
  • Aetna PPO
  • BCBS Blue Precision HMO (specialists only)
  • BCBS HMO (HMOI) (specialists only)
  • Cigna HMO
  • Cigna POS
  • Cigna PPO
  • CountyCare *see insurance page
  • Aetna Better Health *see insurance page
  • Medicare
  • Multiplan PPO
  • United Choice Plus POS/PPO
  • United Options (PPO)
  • United Select (HMO & EPO) (specialists only)
  • United W500 Emergent Wrap
  • Aetna Medicare Advantage HMO & PPO
  • BCBS Medicare Advantage HMO & PPO
  • Humana Medicare Advantage Choice PPO
  • Humana Medicare Advantage Gold Choice PFFS
  • Humana Medicare Advantage Gold Plus HMO
  • United Choice HMO (specialists only)
  • University of Chicago Health Plan (UCHP)
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UChicago Medicine River East

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At a Glance

Practicing Since1993

Board Certifications

  • Obstetrics and Gynecology

Languages Spoken

  • English
  • French
  • Spanish