Dr. Marcy Maguire is a board-certified Reproductive Endocrinologist, Obstetrician and Gynecologist, as well as a Clinical Assistant Professor for the Department of Obstetrics, Gynecology, and Reproductive Science at Rutgers-Robert Wood Johnson Medical School. She earned her medical degree from Medical College in Virginia, performed her Obstetrics and Gynecology residency at Tufts Medical Center, and completed her Reproductive Endocrinology fellowship at the National Institutes of Health. She is also a Partner and OB/GYN Chair at Short Hills Surgery Center in Short Hills, New Jersey.

Today, Dr. Maguire finds it energizing to work in a proactive environment, like Reproductive Medicine Associates (RMA), which is at the forefront of advances in preimplantation genetic testing (PGT) that help give hopeful parents peace of mind on a variety of genetic issues. When paired with In Vitro Fertilization (IVF), it helps your care team increase the chance of a healthy, successful pregnancy.

Dr. Philip J. Cheng is a board-certified urologist and one of the lead physicians at RMA Men’s Health. Based in our Basking Ridge, NJ location, Dr. Cheng specializes in comprehensive care for male infertility, offering advanced treatments such as sperm retrieval, vasectomy reversal, and varicocelectomy.

He earned his medical degree with honors from Baylor College of Medicine in Houston. From there, he completed his general surgery internship and urology residency at the prestigious Brigham and Women’s Hospital in Boston. His training continued with a fellowship in Genitourinary Reconstruction and Andrology at the University of Utah, where he studied under renowned expert Dr. James Hotaling.

In addition to his medical expertise, Dr. Cheng brings creativity and balance to his life as a skilled violinist, avid athlete, and world traveler.

With a deep commitment to men’s health and a personalized approach to care, Dr. Cheng helps patients take confident steps toward building their families and improving their well-being.

Dr. Marcus Jurema is a board-certified Reproductive Endocrinologist and OB/GYN, with a passion for helping patients grow their families. He earned his medical degree from Stanford and completed his residency at Weill Cornell, followed by a fellowship in Reproductive Endocrinology and Infertility at Johns Hopkins.

Before joining RMA, Dr. Jurema held an academic position at Brown University, where he led innovative programs in egg freezing and donor egg services. He’s recognized nationally and internationally for his pioneering work in in vitro maturation (IVM) and is a frequent speaker on advancements in reproductive medicine.

Originally from Brazil, Dr. Jurema is fluent in Portuguese and Spanish. Now based in New Jersey with his wife and two children, he brings both clinical expertise and a deep sense of compassion to every patient he cares for.

Dr. Susan Treiser is a board-certified Reproductive Endocrinologist and OB/GYN with over 25 years of experience in the field. She co-founded IVF New Jersey, where she served as Laboratory Director and helped lead the practice to national recognition.

Dr. Treiser earned her undergraduate degree in Genetics from McGill University and went on to receive both her MD and PhD in Pharmacology from Georgetown University. She completed her OB/GYN residency at Robert Wood Johnson Medical School and a fellowship in Reproductive Endocrinology at Columbia University.

A pioneer in reproductive medicine, Dr. Treiser is a published author, award-winning physician, and frequent speaker on reproductive ethics, third-party reproduction, and advanced fertility treatments. She’s passionate about advancing care for individuals and couples navigating infertility, with a focus on compassion and innovation.

Dr. Doreen Hock finds inspiration in the constant progress of reproductive endocrinology, where each patient’s journey is like solving a unique puzzle. She uses the latest research and technology to create treatment plans tailored to each individual, often building on past successes with new advancements.

Board-certified in Reproductive Endocrinology, Obstetrics, and Gynecology, Dr. Hock also serves as a Clinical Assistant Professor at Rutgers–Robert Wood Johnson Medical School, where she earned her medical degree, completed her residency, and pursued fellowship training in Reproductive Endocrinology and Infertility.

Specializing in Polycystic Ovarian Syndrome (PCOS) and Recurrent Pregnancy Loss (RPL), she is especially excited about innovations such as Comprehensive Chromosome Screening (SelectCCS), a breakthrough that helps identify the most viable embryos for transfer. At RMA, she is proud to be part of a team leading advancements in fertility care.

Dr. Kathleen Hong is a board-certified Reproductive Endocrinologist and Infertility specialist based in Morristown, NJ. Her fellowship at RMANJ Basking Ridge, where she trained in embryology, shaped her patient-focused approach and commitment to advancing reproductive medicine. She has contributed to leading journals such as Fertility and Sterility and the Journal of Assisted Reproduction and Genetics, with research spanning embryo culture, preimplantation genetic testing (PGT), and endometrial synchrony. One of the few reproductive endocrinologists with embryology training, Dr. Hong emphasizes, “In the pursuit of optimal results, it’s imperative to ensure meticulous care for the embryo at every stage… Our collaborative efforts establish RMA as a global leader in reproductive care.”

Dr. Leo Doherty’s passion for medicine began early, inspired by afternoons spent in his father’s pharmacy in the Boston suburbs. “I felt like I was saving lives by helping my father discard expired medications or performing other small tasks around the pharmacy,” he remembers. “I knew then that I wanted to devote my life to helping people.”

A board-certified Reproductive Endocrinologist and Infertility specialist, as well as an Obstetrician and Gynecologist, Dr. Doherty serves as the Lead Physician at RMA’s Somerset office and Director of 3rd Party Reproduction. He earned his medical degree from the University of Massachusetts Medical School and completed his residency in Obstetrics and Gynecology at Yale New Haven Hospital, where he trained extensively in robotic-assisted laparoscopic surgery and earned multiple honors for his work. He then completed a fellowship in Reproductive Endocrinology and Infertility at Yale School of Medicine.

Dr. Doherty is deeply committed to advancing his field through research and education. He has published articles in journals including Fertility and Sterility, The FASEB Journal, and American Journal of Physiology Endocrinology Metabolism, authored chapters in textbooks such as Operative Gynecological Laparoscopy and Hysteroscopy, and is a nationally invited speaker on topics like endometrial receptivity and the impact of uterine fibroids on fertility.

Dr. Micheline Chu is a board-certified Reproductive Endocrinologist and Infertility specialist, as well as an Obstetrician and Gynecologist. She earned her undergraduate degree with Highest Honors from Harvard University in Cambridge, Massachusetts, and continued on to Harvard Medical School, where she received her medical degree. Dr. Chu completed her internship and residency in Obstetrics and Gynecology at Yale University School of Medicine, followed by a fellowship in Reproductive Endocrinology and Infertility at New York Presbyterian Hospital through Columbia University.

Dr. Chu discovered her passion for medicine early. “It’s in my nature to help others, and I find it most rewarding,” she says.

Dr. Shefali Shastri, RMA New Jersey’s Clinical Director and Physician Partner, is a seasoned reproductive endocrinologist who has helped bring more than 2,000 babies into the world since joining the practice in 2009. Inspired early by her mother, a practicing OB/GYN for over thirty years, Dr. Shastri was drawn to women’s health and reproductive medicine. She was captivated by the combination of cutting-edge science and technology with the meaningful, personal connections she could build with her patients.

Dr. Shastri is a board-certified Reproductive Endocrinologist, Obstetrician, and Gynecologist and holds a master’s degree in Physiology from Georgetown University. She earned her medical degree from Robert Wood Johnson Medical School and completed her residency and fellowship at New York-Presbyterian Hospital – Weill Cornell Medical Center in both Obstetrics and Gynecology and the Center for Reproductive Medicine and Infertility. She is a Fellow of the American College of Obstetrics and Gynecologists and a member of the American Society for Reproductive Medicine.

Dr. Shastri believes that every patient’s journey is unique and emphasizes empowering women to make informed decisions about their fertility. She is dedicated to providing thorough information, compassionate guidance, and the highest standard of care. “I’ve met so many incredible, resilient, inspiring patients, and their stories fill my memory in a very special way,” she says.

Dr. Jason Franasiak’s passion for reproductive medicine was inspired early by his parents’ dedication to women’s healthcare, his father was an OB/GYN and his mother a labor and delivery nurse. “This notion inspired me as a child and continues to do so today,” he says. “Helping people build happy and healthy families is so rewarding.”

He graduated from The College of William & Mary with a focus in Biology and Biochemistry, receiving the James Frederic Carr Memorial Cup for exemplifying “character, leadership, and scholarship.” Dr. Franasiak earned his medical degree from The University of Virginia, where he was honored with the Shannon Z. Award for the “most well-rounded” medical student and the Algernon Sydney Sullivan Award for “excellence of character and service to humanity.” He completed his residency in Obstetrics and Gynecology at the University of North Carolina at Chapel Hill, where he served as Education Administrative Chief Resident, and completed his fellowship in Reproductive Endocrinology and Infertility at Reproductive Medicine Associates of New Jersey through the Rutgers Robert Wood Johnson program.

Dr. Franasiak is board-certified in Obstetrics and Gynecology, Reproductive Endocrinology and Infertility, and as a High Complexity Laboratory Director in Embryology and Andrology. He serves as the lead physician of RMA’s Marlton Clinic and Lab in South Jersey and is recognized nationally and internationally for his expertise. He has authored and contributed to over 100 peer-reviewed publications, chapters, and abstracts, and serves on the editorial boards of Fertility and Sterility and the British Journal of Obstetrics and Gynecology, in addition to reviewing for numerous other leading journals.

Dr. Maria Costantini’s path to reproductive medicine began in psychology, where she worked with young cancer patients. That experience left a lasting impression and inspired her to pursue medicine, ultimately becoming an OB/GYN and reproductive endocrinologist.

She is a board-certified Reproductive Endocrinologist and Infertility specialist, as well as an Obstetrician and Gynecologist. Dr. Costantini earned her PhD in Clinical Psychology from Northwestern University and her medical degree from Weill Cornell Medical College. She completed her residency in Obstetrics and Gynecology at New York-Presbyterian Hospital – Weill Cornell Medical Center, followed by fellowship training in Reproductive Medicine at the Weill Cornell Center for Reproductive Medicine and Infertility, as well as additional training at Massachusetts General Hospital and Memorial Sloan Kettering Cancer Center.

Dr. Costantini is committed to providing care that looks at each patient as a whole, combining clinical expertise with compassion and innovation. At RMA, she works alongside a team of skilled physicians and an advanced embryology lab to deliver exceptional results, ensuring patients receive the highest standard of individualized care.

Dr. Mark Sauer joined RMANJ in July 2019 through a collaborative partnership with Robert Wood Johnson Medical School, bringing with him decades of academic leadership and clinical expertise in reproductive medicine. He currently serves as Chair of the Department of Obstetrics, Gynecology and Reproductive Sciences at Rutgers–Robert Wood Johnson Medical School, where he has also been a professor since 2017.

Dr. Sauer’s educational background began at Washington University in St. Louis, where he earned his undergraduate degree. He went on to complete medical school, internship, and residency training at the University of Illinois at Chicago, specializing in Obstetrics and Gynecology. Driven by a passion for advancing fertility care, he pursued subspecialty training in Reproductive Endocrinology and Infertility through a prestigious fellowship at the University of California, Los Angeles. Further underscoring his commitment to thoughtful, patient-centered medicine, Dr. Sauer later earned a Master of Science in Bioethics from Columbia University.

Dr. Sauer sees patients on Tuesdays in Basking Ridge, and RMANJ is proud to continue strengthening its collaboration with RWJ Barnabas Health through this enduring academic and clinical partnership.

Dr. Michael Bohrer is a board-certified Reproductive Endocrinologist and Obstetrician-Gynecologist, as well as a Clinical Associate Professor in the Division of Reproductive Endocrinology within the Department of Obstetrics and Gynecology and Reproductive Sciences at Rutgers–Robert Wood Johnson Medical School.

He earned his medical degree from the State University of New York–Downstate Medical Center and completed his internship and residency training at Johns Hopkins Hospital in Maryland. Dr. Bohrer went on to pursue advanced fellowship training in Reproductive Endocrinology and Infertility at UMDNJ–Robert Wood Johnson Medical School, where he later served as Director of the IVF Program and as an Assistant Professor in the Department of Obstetrics, Gynecology, and Reproductive Sciences before joining RMA.

Known for his patient-centered philosophy of care, Dr. Bohrer emphasizes thoughtful decision-making, accessibility, and a highly personalized clinical experience.

Dr. Bohrer also appreciates RMA’s culture of continual self-assessment and collaboration. He supports the practice’s commitment to analyzing outcomes, sharing insights among physicians, and refining treatment approaches in pursuit of the highest possible standards in reproductive medicine.

Dr. Michael Drews first encountered reproductive endocrinology as a third-year medical student, sparking a lifelong fascination with the science behind human reproduction. More than twenty-five years into his career, he continues to find the study of early life both humbling and inspiring, approaching his work with the same sense of curiosity and dedication that drew him to the field from the start.

He is a board-certified Reproductive Endocrinologist and Obstetrician-Gynecologist and serves as a Clinical Associate Professor in the Division of Reproductive Endocrinology within the Department of Obstetrics and Gynecology and Reproductive Sciences at Rutgers–Robert Wood Johnson Medical School. Dr. Drews earned his medical degree from Cornell University Medical College, completed his residency training in Obstetrics and Gynecology at North Shore Hospital in Manhasset, New York, and pursued advanced fellowship training in Reproductive Endocrinology at Mount Sinai Medical School.

Highly regarded for both his clinical excellence and commitment to patient care, Dr. Drews has received numerous professional honors throughout his career.

Dr. Drews is equally known for his forward-thinking approach to fertility treatment, remaining dedicated to staying at the forefront of rapidly evolving reproductive technologies. He prioritizes continual innovation and clinical advancement, ensuring that patients benefit from the most current, evidence-based techniques available in the field.

Dr. Paul Bergh discovered his passion for Reproductive Endocrinology while initially practicing in Radiology. While performing imaging studies for infertility patients, he became intrigued by the rapidly evolving field and ultimately chose to shift his focus and pursue advanced training in reproductive medicine. More than two decades after co-founding RMANJ—and following several years of collaboration prior—Dr. Bergh has remained deeply committed to the practice, valuing the balanced and collegial partnership he shares with his fellow founding physicians.

Dr. Paul Bergh is a board-certified Reproductive Endocrinologist, Obstetrician, and Gynecologist and serves as a Clinical Associate Professor in the Division of Reproductive Endocrinology within the Department of Obstetrics and Gynecology and Reproductive Sciences at Rutgers–Robert Wood Johnson Medical School. He earned his medical degree from Robert Wood Johnson Medical School, completed his residency in Obstetrics and Gynecology at Saint Barnabas Medical Center in Livingston, New Jersey, and pursued fellowship training in Reproductive Endocrinology at Mount Sinai School of Medicine.

Known for his longstanding dedication to academic medicine and clinical excellence, Dr. Bergh continues to play a central role in advancing fertility care through his leadership at RMANJ and ongoing collaboration with Rutgers–RWJ Medical School.

Dr. Bat-Sheva Maslow completed her Obstetrics and Gynecology residency at the Hospital of the University of Pennsylvania and went on to pursue advanced fellowship training in Reproductive Endocrinology and Infertility at the University of Connecticut School of Medicine. She is deeply committed to patient education and to guiding individuals and families through some of their most sensitive and meaningful reproductive decisions with clarity, empathy, and respect.

Based out of RMA New Jersey’s Jersey City office, Dr. Maslow provides patients with comprehensive fertility care and has particular expertise in egg freezing and in supporting Orthodox Jewish patients with specialized, culturally thoughtful fertility treatment options.

Dr. Maslow’s approach to care is rooted in education, honesty, and compassion. She prioritizes open communication and individualized treatment planning, ensuring that every patient feels informed, supported, and confident throughout their fertility journey.

Dr. Eli Rybak was introduced to reproductive endocrinology during medical school and quickly committed to the specialty because of its life-changing impact on patients.

He is a board-certified Reproductive Endocrinologist and Obstetrician-Gynecologist and serves as a Clinical Assistant Professor in the Division of Reproductive Endocrinology within the Department of Obstetrics and Gynecology and Reproductive Sciences at Rutgers–Robert Wood Johnson Medical School. His clinical interests include polycystic ovarian syndrome, unexplained infertility, menstrual disorders, fertility preservation, and preimplantation genetic diagnosis.

Dr. Rybak earned his undergraduate degree summa cum laude from Yeshiva University and completed both his medical degree and Master of Public Health at Johns Hopkins University. He remained at Johns Hopkins for residency training, where he received the Chief Resident Award for Excellence in Gynecologic Oncology, before completing his fellowship in Reproductive Endocrinology and Infertility at Montefiore Medical Center and Albert Einstein College of Medicine.

An ordained Orthodox Rabbi, Dr. Rybak provides culturally thoughtful fertility care and collaborates closely with community leaders to ensure treatment plans align with religious considerations while meeting the highest clinical standards.

Dr. Emily Osman is a board-certified Obstetrician-Gynecologist and Reproductive Endocrinologist and Infertility specialist, and serves as the Lead Physician at RMA New Jersey’s Princeton location. She earned her medical degree from the University at Buffalo Jacobs School of Medicine and Biomedical Sciences, completed her residency in Obstetrics and Gynecology at the Medical University of South Carolina, and went on to pursue fellowship training in Reproductive Endocrinology and Infertility through the Jefferson–RMA Fellowship Program in Basking Ridge, New Jersey.

Dr. Osman has led multiple pre-clinical and clinical research trials and has published widely on translational applications in reproductive medicine and strategies to optimize embryology laboratory outcomes. Her clinical and research interests include embryo vitrification, fertility preservation, and egg freezing.

Drawing on both her professional expertise and personal experience, Dr. Osman places great importance on building strong, trusting relationships with her patients. She is deeply committed to delivering individualized, compassionate fertility care and values RMA’s collaborative environment as a center of reproductive excellence that supports her work as both a clinician and a parent.

Dr. Jamie Morris discovered her passion for Reproductive Endocrinology while practicing as an OB/GYN, inspired by the profound impact infertility diagnoses have on patients. She pursued fellowship training in the specialty and joined RMA in 2002.

She is a board-certified Reproductive Endocrinologist and Obstetrician-Gynecologist and serves as a Clinical Assistant Professor at Rutgers–Robert Wood Johnson Medical School. Dr. Morris completed her fellowship at the University of Washington School of Medicine and her residency at Saint Barnabas Medical Center. She earned her B.A. in Biomedical Engineering from Johns Hopkins University and her M.D. from Hahnemann University School of Medicine.

Dr. Morris provides compassionate, patient-focused fertility care, combining advanced technology, daily physician interaction, and individualized treatment to help patients achieve their family-building goals.

Dr. Marie Werner is a board-certified Reproductive Endocrinologist and High-Complexity Clinical Laboratory Director. She completed her fellowship in Reproductive Endocrinology and Infertility at RMANJ through the Rutgers–Robert Wood Johnson program, gaining extensive training in clinical medicine, molecular genetics, and embryology. Dr. Werner completed her Obstetrics and Gynecology residency at NYU Langone Medical Center, where she served as administrative chief resident. She earned her B.S. from Boston College in 2004 and her M.D. from New Jersey Medical School in 2008.

Dr. Thomas Molinaro is a board-certified Reproductive Endocrinologist and Obstetrician-Gynecologist and serves as a Clinical Assistant Professor in the Department of Obstetrics, Gynecology, and Reproductive Sciences at Rutgers–Robert Wood Johnson Medical School. He holds a Master of Science in Clinical Epidemiology from the University of Pennsylvania and earned his medical degree from New Jersey Medical School. Dr. Molinaro completed his residency in Obstetrics and Gynecology and fellowship in Reproductive Endocrinology at the Hospital of the University of Pennsylvania. His clinical specialties include assisted reproductive technology and the treatment of ectopic pregnancy.

Known for his interest in innovative technology, Dr. Molinaro integrates cutting-edge resources into patient care while maintaining a strong focus on research and education, contributing to RMA’s reputation for excellence in both clinical and academic reproductive medicine.