Our Team

---

Dr. Tsai is the Medical Director and founder of NYFC. Dr. Tsai completed his undergraduate training at Columbia University and received his Medical Degree from Mount Sinai School of Medicine. He completed his OB/GYN residency at Albert Einstein College of Medicine and his fellowship in reproductive endocrinology & infertility at the University of California-San Francisco/Stanford Medical Center.

Dr. Tsai has authored numerous research papers in the fields of gynecologic and reproductive endocrinology. Special areas of interest include the infertility, laparoscopic, laser surgery and difficult cases. Dr. Tsai is an Assistant Professor of Obstetrics and Gynecology at Weill Medical College of Cornell University. He is the former Chairman of ACOG District 2 Section 3, and holds numerous other leadership positions including former president of Queens Ob/Gyn Society, former Vice Chairman, as well as Secretary and Treasurer of Queens Ob/Gyn Society.

Dr. Tsai is the Director of the Division of Reproductive Endocrinology and Infertility at New York Presbyterian Queens. The Division of Reproductive Endocrinology and Infertility provides a full spectrum of state-of-the-art medical and surgical treatments in assisted reproductive technologies. Additionally, the service provides expert care in all aspects of reproductive endocrinology and gynecology. He specializes in surgical management of pelvic pain, endometriosis, fibroids, uterine septum and asherman syndrome. He has performed over 100 laparoscopic myomectomies per year and hysterectomies also known as “Band-aid hysterectomy and Band-aid myomectomy”. He is the first in Queens to popularize LSH, laparoscopic supracervical hysterectomy. This procedure allows the preservation of the cervix when removing the uterus. The cervix may play a role in female sexual satisfaction therefore he tries not to remove it unless absolutely necessary. He is also the first to implement a staged laparoscopic/hysteroscopic myomectomy approach. For fibroids that are too large to safely remove from the uterus during a single surgery a staged procedure is performed and the rest of the myoma is removed. This technique has also been applied to uterine septums and adhesions.

Yanna Dostova, FNP-C, is a highly accomplished Family Nurse Practitioner specializing in Reproductive Endocrinology and Infertility, with advanced expertise in fertility care and minimally invasive gynecologic procedures. She is dedicated to delivering personalized, evidence-based treatment that supports patients through every stage of their reproductive journey. Yanna has demonstrated exceptional procedural proficiency, having independently performed over 500 hysteroscopic procedures—including polypectomy, myomectomy, adhesiolysis, septum resection, and ovarian cyst aspirations—as well as more than 300 egg retrievals, embryo transfers, intrauterine inseminations (IUI), and intralipid infusions. She develops individualized treatment plans encompassing IVF, IUI, ovulation induction, and natural cycles for heterosexual and same-sex couples, single parents, and egg donors.

A leader in clinical innovation, Yanna established the NAD+ infusion program at The New York Fertility Center, designed to enhance oocyte quality and improve blastocyst formation rates in patients of advanced maternal age. Her comprehensive scope of practice includes transvaginal ultrasonography, saline infusion sonography (SIS), early obstetric care, and semen analysis, along with the management of complex reproductive conditions such as PCOS, endometriosis, OHSS, Asherman’s syndrome, lupus, and genetic abnormalities, as well as fertility preservation services for oncology patients.

In addition, Yanna is actively engaged in academic medicine. She serves as a dedicated preceptor to nurse practitioner students, medical students, and residents from institutions including New York University, SUNY Downstate Health Sciences University, Utica University, and Xavier Ochsner College of Medicine. Her commitment to advancing the profession is further reflected in her publication with Columbia University, titled “Expanding the Role of Nurse Practitioners in Reproductive Endocrinology and Infertility: Outcomes From an NP-Led Fertility Practice and Comparison with U.S. National Benchmarks,” which highlights the effectiveness and impact of nurse practitioner–led fertility care.  Yanna maintains affiliation with SUNY Downstate Health Sciences University Hospital, where she continues to provide patient care with minimally invasive surgery as well providing accessibility to fertility medicine to a population that does not have these services readily accessible.

Beyond her clinical expertise, Yanna is deeply committed to providing a seamless, supportive experience. She prioritizes accessibility, clear communication, and continuity of care, ensuring that patients feel guided, informed, and empowered at every stage. Her role as a mentor and educator to future healthcare professionals further reflects her leadership and influence within the field of reproductive medicine. Yanna’s philosophy is rooted in excellence, discretion, and trust. She believes fertility care should not only be clinically exceptional, but also deeply human—where patients feel seen, supported, and confidently cared for through one of the most meaningful journeys of their lives.

Dr. Huai L. Feng, is a world-renowned specialist in reproductive medicine, andrology and embryology. He is the Director of the reproductive medicine laboratories at the New York Fertility Center. Dr. Feng is a foreign academician and an active board member on academic committees of several state key laboratories. He is currently a distinguished professor and visiting professor in a number of Universities and Hospitals. Dr. Feng is certified by the American Board of Bioanalysis (ABB) as a High-Complexity Clinical Laboratory Director (HCLD), Embryology Laboratory Director (ELD), Andrology Laboratory Director (ALD), and clinical consultant (CC), and holds professional certificates and technical licenses in the United States, including the New York State Tissue Banks, senior laboratory officer, embryology and andrology, and clinical technology. He is also a part-time and an off-site director of laboratories in multiple centers across the United States. Dr. Feng has published over 200 research papers in peer-review scientific journals, and has edited five books as editor-in-chief or in co-chief. He has also received more than thirty awards from professional committees and international organizations. Dr. Feng is a clinical member of the Expert Committee in Society for the Study of Reproduction. He is also an active member in multiple professional Societies and Academies of Science. Dr. Feng was awarded the Distinguished Scientist in the World from IBC of Cambridge in 2005, and elected as an Outstanding Inspector from the College of American Pathology (CAP) in 2006 and Scientific Award from ASRM in 2014.