Our Reproductive Endocrinologists

All our physicians have two board certifications in Reproductive Endocrinology & Infertility and Obstetrics & Gynecology. Our physicians are also Fellows in the American College of Obstetric and Gynecology.

Maria Saketos, M.D., F.A.C.O.G.

Maria Saketos, M.D., F.A.C.O.G., is the Director of the Donor Egg Program, Third Party Reproduction, and the Donor Egg Bank. In addition, she serves as the Director of Clinical Services here at NYU Langone Reproductive Specialists of New York. She is double board certified in Obstetrics and Gynecology & Reproductive Endocrinologyand Infertility. Dr. Saketos graduated from Mount Sinai School of Medicine in New York City and trained at Beth Israel Medical Center in New York. She completed her fellowship at University of Medicine and Dentistry in Newark, New Jersey. She worked in academics at Long Island Jewish Medical Center for five years before joining NYU Langone Reproductive Specialists of New York in 2000. She currently holds an appointment as Clinical Assistant Professor in the Department of Obstetrics and Gynecology and Reproductive Medicine at Stony Brook University. She has privileges at Winthrop University Hospital, Long Island Jewish Medical Center, and North Shore University Hospital. Dr. Saketos enjoys working with patients and helping them complete their journey to parenthood. She takes special care to individualize treatment plans and find the right protocol to help women achieve a pregnancy.


Linda Sung, M.D., F.A.C.O.G.

Linda Sung, M.D., F.A.C.O.G., is double board certified in Obstetrics and Gynecology as well as Reproductive Endocrinology and Infertility. She is a Fellow of the American College of Obstetrics and Gynecology, and is a member of the American Society of Reproductive Medicine, The Society of Reproductive Endocrinologists, The American College of Obstetrics and Gynecology, The Endocrine Society, the Nassau OB/GYN Society, and the American Medical Association. Dr. Sung had her medical school training at Drexel University in Philadelphia, OB/GYN Residency training at Winthrop University Hospital, and Reproductive Endocrinology and Infertility Fellowship training at Mount Sinai Medical Center in New York. She currently holds appointments as a Clinical Assistant Professor in the Department of Obstetrics and Gynecology at the State University of New York at Stony Brook and Adjunct Clinical Assistant Professor at the New York College of Osteopathic Medicine. She was nominated and served as the President of the Nassau OB/GYN Society for 2011. Dr. Sung has also been awarded the CREOG Teaching Award for her excellence in teaching and training of OB/GYN Residents. She was promoted as the Director of the Reproductive Endocrinology & Infertility Division at Winthrop University Hospital. She currently holds hospital appointments at Winthrop University Hospital, Long Island Jewish Hospital, and Nassau University Medical Center, where she was the former Acting Director of the Division of Reproductive Endocrinology and Infertility. Her special interest areas include infertility, polycystic ovarian syndrome, fertility preservation, treatment of adolescent menstrual irregularities, and reproductive surgeries.

Andrew Weston, PhD, HCLD, CC, TS

Dr. Weston earned his doctorate degree at Cornell University in Reproductive Physiology. He completed a postdoctoral fellowship at the Oregon National Primate Research Center, working with IVF in endangered species of primates. His research, in affiliation with the Oregon Health Sciences University, focused on developing optimal culture conditions for both human and non-human primate embryos. He has since spent nearly three decades in the clinical field as a high complexity laboratory director and clinical consultant, working with a number of successful IVF clinics across the country. His broad affiliations with other clinics have allowed him to witness and incorporate the latest technologies and approaches to IVF to provide and maintain the highest standards of care for our patients.



Satu Kuokkanen, M.D, F.A.C.O.G

Satu Kuokkanen, MD, PhD is board certified in both Obstetrics and Gynecology and Reproductive Endocrinology and Infertility, holds a PhD in Genetics and has been practicing medicine since 1992. Dr. Kuokkanen’s extensive multi-level clinical and research experience combined with her genetics education have allowed for a unique medical perspective when treating infertility. In her career, she has garnered a reputation for overcoming hard-to-solve infertility issues as a result of staying up-to-date on the latest research and treatment techniques. Dr. Kuokkanen completed her residency and REI fellowship at Montefiore Medical Center and Albert Einstein College of Medicine in Bronx, New York. She joined a busy fertility practice in Long Island after completing her sub-specialty training in 2008. Additionally, she stayed as an Assistant Professor at Albert Einstein College of Medicine actively participating in scholarly activities, research and education. Dr. Kuokkanen has completed research with the National Institutes of Health and Albert Einstein College of Medicine and has received several awards for her medical research, including the prestigious American Board of Obstetricians and Gynecologist Foundation research scholarship. Her research focuses on implantation biology, that is one of the areas in human reproduction still remaining poorly understood piece.

Dr. Rani Fritz DO PhD FACOG

Dr. Fritz obtained his medical degree from New York Institute of Technology’s College of Osteopathic Medicine followed by an Obstetrics and Gynecology residency at Columbia’s St. Luke’s-Roosevelt Hospital in NY, NY. Dr. Fritz completed his Reproductive Endocrinology and Infertility fellowship at Albert Einstein College of Medicine, in New York.

Following residency and prior to pursing his infertility fellowship, Dr. Fritz practiced general OB/GYN for a total of 6 years. During those six years, Dr. Fritz was very active academically earning a Women’s Reproductive Health Research scholarship, a prestigious and competitive NIH grant to conduct women’s health related research. Additionally, Dr. Fritz earned a PhD in reproductive sciences, making him one of the only fertility physicians with both a doctorate in medicine and reproductive sciences.

Dr. Fritz has earned numerous awards and recognitions including the prize paper during the 2017 ASRM conference, the highest award given during the annual meeting. Dr. Fritz has also earned the Pfizer president’s presenter award during the 2014 Society for Reproductive Investigation in Florence, Italy. Dr. Fritz sits on the editorial board of Fertility and Sterility and is a reviewer for the journal as well as many other peer review journals. Dr. Fritz continues to be active in research, with interests including fertility preservation, male factor infertility, and placental physiology. Dr. Fritz is a member of the American College of Obstetrics and Gynecology and the American Society for Reproductive Medicine. Dr. Fritz’s currently holds an Assistant Clinical Professor position at NYU Langone and continues to be active in formal and informal medical student and resident education.

Despite Dr. Fritz’s accomplishments, he takes most pride in helping couples and individuals achieve their family building desires. He incorporates both medical and surgical treatments to help his patients achieve their family building desires. In his own words, “There is no greater professional satisfaction then when a couple or individual brings back their newborn baby after we partnered together to overcome their fertility struggles. Those tears of joy that usually ensue are truly priceless”.

Yelena Dondik MD, FACOG

Yelena Dondik MD, FACOG completed her undergraduate education at Brown University. She received her medical degree from Stony Brook University School of Medicine, where she was inducted into the Gold Humanism Honors Society and the Alpha Omega Alpha Honor Society. She also received the American Medical Women’s Association Glasgow-Rubin Citation for Academic Achievement. After residency in Obstetrics and Gynecology at NYU-Winthrop Hospital, she completed her subspecialty training in Reproductive Endocrinology and Infertility at the University of Louisville. She is a member of the American Society for Reproductive Medicine and a fellow of the American College of Obstetricians and Gynecologists. Dr Dondik’s research publications and presentations include the predictive value of ovarian reserve markers in intrauterine insemination, and the prevalence of obstructive sleep apnea and auto-immune thyroid disease in Polycystic Ovarian Syndrome patients. Most recently, Dr Dondik has conducted research on DNA repair gene expression in Primary Ovarian Insufficiency and investigated angiogenic markers of placental function in egg donor IVF pregnancies.

Vasilios Goudas, M.D., F.A.C.O.G.

Vasilios Goudas, M.D., F.A.C.O.G., is a Fellow of the American College of Obstetrics and Gynecology and board certified in both Obstetrics and Gynecology & Reproductive Endocrinology and Infertility. He grew up in Greece and graduated Medical School from the University of Patras, Greece. Afterwards he moved to the USA and did his Residency in Obstetrics and Gynecology @ Nassau University Medical Center in New York, an affiliate of the State University of New York @ Stony Brook. He completed his training with a fellowship in Reproductive Endocrinology & Infertility at the world famous Mayo Clinic in Rochester Minnesota, and started working since in the New York Metropolitan Area. He has vast experience in Polycystic Ovarian Syndrome as well as Reproductive Surgery. His team presented pioneering work in artificial embryo twinning. Dr. Goudas has worked with numerous patients struggling with infertility and takes pride in providing compassionate and specialized care. He sees patients in the Stony Brook and West Islip offices.

Our Friendly Staff

Many of the NYU Langone RSofNY personnel have been with NYU Langone RSofNY for 19 years, in some cases more. Our veteran staff is here to assist you, inform you, and be here for you throughout the entire process. They are compassionate, hard-working, and love what they do, helping adults become parents and making dreams come true. Here are some of our staff members, whom you will meet in our various offices here at NYU Langone RSofNY.