Eden Rebecca Cardozo, MD

About

Fertility preservation runs against somebody else’s clock. A patient referred after a cancer diagnosis is usually seen in the narrow interval between that diagnosis and the first day of chemotherapy or pelvic radiation, and an egg or embryo freezing cycle has to fit inside it. Eden Rebecca Cardozo’s listed clinical focus at Mass General sits on exactly that problem — preservation for oncology patients, alongside elective egg freezing — which means the practical skill is compressing a stimulation protocol into a window that someone else’s treatment schedule set.

She is one of the few physicians on this roster whose profile states dual certification: American Board of Obstetrics and Gynecology in general obstetrics and gynecology and in the reproductive endocrinology and infertility subspecialty. That pairing matters less as a badge than as a floor — it means she completed an ACGME-accredited residency, passed the general exam, then finished a fellowship and passed the subspecialty exam in the narrowest field of the specialty. Her PCOS and ovulatory-dysfunction interest lives in the same daily work: stimulation protocols where over-response is the risk rather than under-response.

Her training path ran through four institutions on two coasts: a molecular, cellular and developmental biology degree at Yale, a medical degree at the University of Michigan, obstetrics and gynecology residency at Northwestern University Hospitals in Chicago, and reproductive endocrinology and infertility fellowship at Massachusetts General Hospital, completed in 2020, where she now practices in Boston. She belongs to ACOG and ASRM. One scheduling note before you contact the center: her Mass General profile was listed as not accepting new patients, so confirm panel status when you call — if she is closed, the center can route preservation questions to another physician in the same program.

Clinical Expertise

• Oncofertility and urgent preservation: accelerated stimulation protocols for egg or embryo freezing when cancer treatment cannot be delayed, plus sperm cryopreservation coordination
• Elective egg freezing: counseling on yield expectations by age and ovarian reserve, and cycle design for patients with no medical deadline
• Full-cycle IVF management: stimulation, monitoring, retrieval and transfer under one physician, with ICSI where male factor applies
• PCOS care: ovulation induction and hyperstimulation-risk management in high-responding patients
• Endometriosis, fibroid and unexplained infertility evaluation: reserve testing, cavity assessment and a treatment sequence rather than a single modality
• PGT-A referral decisions: identifying which patients actually gain information from embryo chromosome screening

Why Choose Dr. Cardozo

Both boards, documented. Her profile states certification in obstetrics and gynecology and in reproductive endocrinology and infertility rather than leaving the question to training alone.

A named preservation focus. At a center with a dedicated Clinic for Reproductive Health and Cancer, having an attending whose clinical interest is preservation means the timing question gets answered by someone who handles it regularly.

Four-institution training with a research-science undergrad background in molecular and developmental biology, at Yale, Michigan, Northwestern and Mass General.

Professional Affiliations

American College of Obstetricians and Gynecologists; American Society for Reproductive Medicine. ABOG-certified in obstetrics and gynecology and in reproductive endocrinology and infertility. Reproductive endocrinologist at Mass General Fertility Center, practicing in Boston.

Suitable For

• Patients newly diagnosed with cancer who need eggs, embryos or sperm banked before treatment begins
• Women freezing eggs electively and wanting reserve testing plus a realistic yield discussion first
• PCOS patients whose main problem is ovulation and whose risk during IVF is over-stimulation
• Couples at the start of an infertility workup, where a clear sequence beats a jump straight to treatment
• Patients referred by another physician for a preservation or IVF second opinion — verify whether her panel is open