Team of Physicians

Reproductive Medicine Associates of New York has enabled thousands of couples to successfully conceive by performing some of the most advanced fertility treatments available. Our physicians are board-certified in reproductive endocrinology and infertility, and treat patients with compassion and individualized care to make their dreams of becoming a parent a realistic opportunity.

 RMA of New York Founding Partners

Reproductive Endocrinologists Alan Copperman, MD, Lawrence Grunfeld, MD, Tanmoy Mukherjee, MD, and Benjamin Sandler, MD,  are among the founding partners of RMA of New York, and have treated thousands of patients from around the world.

Alan_Copperman Lawrence_Grunfeld Tanmoy-Mukherjee Benjamin-Sandler
Alan Copperman, MD Lawrence Grunfeld, MD Tanmoy Mukherjee, MD Benjamin Sandler, MD

 RMA of New York Physicians

Reproductive Endocrinologists Eric Flisser, MD, Jeffrey Klein, MD, Jaime Knopman, MD, Rashmi Kudesia, MD, Matthew A. Lederman, MD, Beth McAvey, MD, Daniel E. Stein, MD, and Sheeva Talebian, MD have received their training from the top medical colleges among the nation, and have brought joy to numerous couples in their family-building journey.

Eric_Flisser Jeff-Klein Jaime_Knopman_MD
Eric Flisser, MD Jeffrey Klein, MD Jaime Knopman, MD
Rashmi Kudesia - Suit DrLederman
Rashmi Kudesia, MD Matthew A. Lederman, MD Beth McAvey, MD
DrStein Sheeva.01.FINAL
Daniel E. Stein, MD Sheeva Talebian, MD

RMA of New York Physicians – International

Martha Luna, MD, serves as the Co-Director of RMA of New York International.  She and her team of specialists serve patients seeking treatment for infertility that live in proximity to our office in Mexico City.

Martha Luna, MD

Enrique Cervantes, MD is a graduate of the multi-disciplinary program in Obstetrics and Gynecology at the Institute of Technology and Superior Studies of Monterrey (ITESM). He completed his Reproductive Endocrinology and Infertility fellowship at Reproductive Medicine Associates of New York (RMANY) under the mentorship of Dr. Benjamin Sandler.

Enrique Cervantes, MD

RMA of New York Urologist (Male Infertility Specialist)

Male Reproductive Urologist, Natan Bar-Chama, MD, serves as the Director of our on-site Center for Male Reproductive Health.  Dr. Bar-Chama works in conjunction with his team to treat patients for various male factor conditions, including male infertility, erectile dysfunction and voluntary sterilization (vasectomy). Dr. Bar-Chama is especially experienced in microsurgical repair procedures, including vasectomy reversal (vasovasostomies), microsurgical open testicular sperm retrieval, and microsurgical varicocelectomy.

Natan Bar Chama, MD


Finding support and solutions for infertility during National Infertility Awareness Week By Alan B. Copperman, MD National Infertility Awareness Week focuses not only on the discovery and awareness of infertility, but on asking appropriate questions, identifying and treating underlying health issues, and finding compassionate expert care. This year’s theme is #StartAsking, ...READ MORE

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