Denis Vaughan MD
Dr. Denis Vaughan
Dr. Denis Vaughan is a double board-certified reproductive endocrinologist at Beth Israel Deaconess Medical Center and Co-Founder of Terra Fertility.
He has a special interest in optimizing IVF outcomes, including diminished ovarian reserve, recurrent implantation failure and recurrent pregnancy loss and has published extensively on the topics.
In addition, Dr. Vaughan conducts research at Harvard on fertility preservation, including elective, oncological reasons and for gender affirming care. An Assistant Professor at Harvard Medical School, Dr. Vaughan, serves on the editorial board of the premier academic infertility journal Human Reproduction.
Originally from Cork, Ireland, Dr. Vaughan moved to the U.S. in 2013 for OBGYN residency training at Tufts Medical Center and completed a fellowship in reproductive endocrinology and infertility at Beth Israel Deaconess Medical Center and Harvard Medical School.
In addition to his clinical and research work, Dr. Vaughan serves as an investor and advisor to early-stage healthcare companies.
About Me
Education
Medical School: The Royal College of Surgeons, Ireland (High Honours)
Residency: The Rotunda Hospital, Dublin, Ireland
Residency: Tufts Medical Center
Fellowship: Boston IVF/Beth Israel Deaconess Medical Center/Harvard Medical School
Clinical Expertise
Dr. Vaughan offers compassionate, evidence-based care for all fertility challenges but has particular interests in:
Complex Infertility Cases: Personalized approaches for patients with diminished ovarian reserve, multiple failed IVF cycles or unclear diagnoses. Particular expertise in second opinions.
Male Factor Infertility: Expertise in treating low sperm count, motility issues, or azoospermia, including advanced sperm selection techniques.
Oligo/anovulation (irregular menstrual cycles) including hypothalmic dysfunction and Polycystic Ovary Syndrome (PCOS): Thorough testing to arrive to diagnosis. Tailored, holistic treatment strategies including lifestyle and medical.
Recurrent Pregnancy Loss: Comprehensive evaluation and innovative protocols to maximize live birth rates.
LGBTQ+ Family Building: Inclusive fertility care for same-sex couples and transgender individuals, including reciprocal IVF and fertility preservation. Dr. Vaughan serves as a medical advisor and avid supporter of Fenway Health
Leadership Roles
ASRM Clinical Task Force Member (2022-Present)
Editorial Board Member, Human Reproduction (2023-Present)
Chief, Resident Education, Tufts Medical Center (2016–2017)
Vice-President, New England Fertility Society (2021–2023)
Director of Clinical Research, Boston IVF (2020–2025)
Co-Director of Oncofertility, Boston IVF (2020–2025)
Associate Fellowship Director, Boston IVF/Beth Israel Deaconess Medical center (2025)
Advisory Roles
I advise multiple start-up and established companies in the fertility space including:
- Ferring Pharmaceuticals
- EMD Serono
- Igenomix
- Granata Bio
- Zymot Fertility
- Testasy
- Illumicell
- Stealth startup
Honors & Awards
2024-2025: Top Doctor, Castle Connolly
2024-2025, Top Doctor, Boston Magazine
2022-2024: Star Award, ASRM
2018: Fellowship Award, American Gynecological Club
2017: George W. Mitchell Jr. Society, Excellence in Research, Tufts Medical Center
2016-2017: Merit Scholarship, Pacific Coast Reproductive Society
2015: George W. Mitchell Jr. Society, academic award, Tufts Medical Center
2015: Merit Scholarship, North American Menopausal Society
Featured Here
Publications
Dr. Vaughan has authored over 100 peer reviewed manuscripts, book chapters and abstracts in leading journals such as Fertility and Sterility, Human Reproduction, and JAMA Network Open. His research encompasses a wide range of topics in reproductive medicine, including IVF optimization, embryo transfer timing, male factor infertility, LGBTQ+ family building, and oncofertility. His work is recognized for its clinical relevance and innovative approaches to enhancing fertility care.
Explore Dr. Vaughan’s full list of publications here
Patient Reviews
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