Dr. Firstname Lastname
Physician Partner, Reproductive Endocrinologist, MD, FACOG

Dr. Mary Morris (she/her) is a Reproductive Endocrinologist at Everleap Fertility. She is double board-certified in Obstetrics & Gynecology and Reproductive Endocrinology & Infertility (REI). She sees in-person patients at our Stoneham location and telehealth patients across Massachusetts.
Dr. Morris completed her OB/GYN residency at the Massachusetts General Hospital and Brigham and Women’s Hospital Combined Program in Boston, followed by fellowship training in REI at Massachusetts General Hospital. She is double board-certified in Obstetrics and Gynecology (OB/GYN) and Reproductive Endocrinology and Infertility (REI).
Before joining Everleap Fertility, Dr. Morris served as the Medical Director for Oncofertility and Third Party Reproduction at Massachusetts General Hospital and held a faculty appointment as Assistant Professor of Obstetrics, Gynecology, and Reproductive Biology at Harvard Medical School.
Her clinical and research interests include fertility preservation for patients with cancer, hereditary cancer syndromes, and infertility related to polycystic ovary syndrome (PCOS). She is especially passionate about helping patients navigate fertility challenges with compassion and evidence-based care.
Outside of medicine, Dr. Morris enjoys cooking, running, cycling, drawing, and reading.
1. Morris ME, Saatcioglu HD, Zhang LH, Donahoe PK, Pépin D. Single cell sequence analysis of the mouse ovary through the estrous cycle. Manuscript in preparation.
2. Meinsohn, Marie-Charlotte, Hatice D. Saatcioglu, Lina Wei, Yi LI, Heiko Horn, Maeva Chauvin, Motohiro Kano, Ngoc Minh Phuong Nguyen, Nicholas Nagykery, Aki Kashiwagi, Wesley. Samore, Dan Wang, Esther Oliva, Guangping Gao, Mary E. Morris, Patricia K. Donahoe, David Pepin. “Single-Cell Sequencing Reveals Suppressive Transcriptional Programs Regulated by MIS/AMH in Neonatal Ovaries.” Proceedings of the National Academy of Sciences, vol. 118, no. 20, 2021, doi:10.1073/pnas.2100920118.
3. Kano M, Hsu J, Saatcioglu HD, Nagykery N, Zhang LH, Sabatini ME, Donahoe PK, Pépin D. Neoadjuvant treatment with Mullerian Inhibiting Substance synchronizes follicles and enhances superovulation yield. PMID: 31232694
4. Saatcioglu HD, Kano M, Horn H, Zhang LH, Samore WR, Nagykery N, Hyun M, Suliman R, Joy MP, Hsu J, Sacha C, Wang D, Gao G, Oliva E, Morris Sabatini ME, Donahoe PK, Pépin D. Single-cell sequencing of neonatal uterus reveals an Misr2+ stromal progenitor indispensable for fertility. Elife. 2019 Jun 24;8:e46349. doi: 10.7554/eLife.46349. PMID: 31232694
5. Romanski P, James K, Sabatini ME. Women’s health providers perspectives on preimplantation genetic testing. Reprod Biomed Online2019 Sep;39(3):530-537. Epub 2019 May 11.
6. Pépin D, Sabatini ME, Donahoe PK. Müllerian inhibiting substance/anti-Müllerian hormone as a fertility preservation agent. Curr Opin Endocrinol Diabetes Obes. 2018 Dec;25(6):399-405. PMID: 30320617
7. Hsu JY, James KE, Bormann CL, Donahoe PK, Pépin D, Sabatini ME. Mullerian-inhibiting substance/anti-Mullerian hormone as a predictor of preterm birth in polycystic ovary syndrome. J Clin Endocrinol Metab. 2018 Sep 14. PMID: 30239805
8. Coutifaris C, Kilcoyne A, Feldman AS, Sabatini ME, Oliva E. Case 29-2018: A 31-Year-Old Woman with Infertility. N Engl J Med. 2018 Sep 20;379(12):1162-1172. PMID: 30231229
9. Hariton E, Kim K, Mumford SL, Palmor M, Bortoletto P, Cardozo ER, Karmon AE, Sabatini ME, Styer AK. Total number of oocytes and zygotes are predictive of live birth pregnancy in fresh donor oocyte in vitro fertilization cycles. Fertil Steril. 2017 Aug;108(2):262-268. PMID: 28601410
10. Hariton E, Bortoletto P, Cardozo ER, Hochberg EP, Sabatini ME. The role of oncofertility clinics in facilitating access to reproductive specialists. J Patient Exp. 2016 Dec;3(4):131-136. PMID: 28725849 11. Mínguez-Alarcón L, Chiu YH, Messerlian C, Williams PL, Sabatini ME, Toth TL, Ford JB, Calafat AM, Hauser R; EARTH Study Team. Urinary paraben concentrations and in vitro fertilization outcomes among women from a fertility clinic. Fertil Steril. 2016 Mar;105(3):714-721. PMID: 26654974
12. Kano M, Sosulski AE, Zhang L, Saatcioglu HD, Wang D, Nagykery N, Sabatini ME, Gao G, Donahoe PK, Pépin D. AMH/MIS as a contraceptive that protects the ovarian reserve during chemotherapy. Proc Natl Acad Sci U S A. 2017 Feb 28;114(9): E1688-E1697. PMID: 28137855
13. Anahtar MN, Byrne EH, Doherty KE, Bowman BA, Yamamoto HS, Soumillon M, Padavattan N, Ismail N, Moodley A, Sabatini ME, Ghebremichael MS, Nusbaum C, Huttenhower C, Virgin HW, Ndung’u T, Dong KL, Walker BD, Fichorova RN, Kwon DS. Cervicovaginal bacteria are a major modulator of host inflammatory responses in the female genital tract. Immunity. 2015 May 19;42(5):965-976. PMID: 25992865
14. Cardozo ER, Thomson AP, Karmon AE, Dickinson KA, Wright DL, Sabatini ME. Ovarian stimulation and in-vitro fertilization outcomes of cancer patients undergoing fertility preservation compared to age matched controls: a 17-year experience. J Assist Reprod Genet. 2015 Apr;32(4):587-596. PMID: 25595540
15. Doyle JO, Attaman JA, Styer AK, Sabatini ME, Petrozza JC, Toth TL. Rescue human chorionic gonadotropin for false empty follicle syndrome: optimism for successful pregnancy outcome. Fertil Steril. 2012 Aug;98(2):450-452. PMID:22608311
16. Sabatini ME, Guo L, Lynch MP, Doyle JO, Lee H, Rueda BR, Styer AK. Metformin therapy in a hyperandrogenic anovulatory mutant murine model with polycystic ovarian syndrome characteristics improves oocyte maturity during superovulation. J Ovarian Res. 2011 May 23;4(1):8. PMID: 21605417
17. Sabatini ME, Wolkovich AM, Macklin EA, Wright DL, Souter I, Toth TL. Pronuclear embryo cryopreservation experience: outcomes for reducing the risk of ovarian hyperstimulation syndrome and for fertility preservation in cancer patients. J Assist Reprod Genet. 2011 Mar;28(3):279-284. PMID: 21107899
18. Schratt GM, Tuebing F, Nigh EA, Kane, KG, Sabatini ME, Kiebler M., Greenberg ME. A brain-specific microRNA regulates dendritic spine development. Nature. 2006; 439:283-9.
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Physician Partner, Reproductive Endocrinologist, MD, FACOG
Reproductive Endocrinologist, MD, FACOG
Physician Partner, East Coast Medical Director, MD, PHD, FACOG
Chief Medical Officer, Everleap Fertility; Reproductive Endocrinologist, MD, MSCE, FACOG

781-438-9600
Mon - Fri: 9:00 AM - 5:00 PM
Sat - Sun: Closed
Reproductive Endocrinologist, MD
"What makes our clinic so incredibly special isn't just the cutting-edge science or the state-of-the-art laboratory - it is the unwavering empathy and dedication of our entire team"
Reproductive Endocrinologist, MD
"What makes our clinic so incredibly special isn't just the cutting-edge science or the state-of-the-art laboratory - it is the unwavering empathy and dedication of our entire team"
Reproductive Endocrinologist, MD
"What makes our clinic so incredibly special isn't just the cutting-edge science or the state-of-the-art laboratory - it is the unwavering empathy and dedication of our entire team"
Reproductive Endocrinologist, MD
"What makes our clinic so incredibly special isn't just the cutting-edge science or the state-of-the-art laboratory - it is the unwavering empathy and dedication of our entire team"