RMA of New York 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.

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, MD

Founding Partner

Benjamin Sandler, MD

Founding Partner

Tanmoy Mukherjee, MD

Founding Partner

Lawrence Grunfeld, MD

Founding Partner

Reproductive Endocrinologists Daniel E. Stein, MD, Eric Flisser, MD, Joseph B. Davis, DO, Jeffrey Klein, MD, Matthew A. Lederman, MD, Beth McAvey, MD, Kimberley A. Thornton, MD, and Jovana Lekovich, 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.

Daniel E. Stein, MD Beth McAvey, MD Joseph B. Davis, DO Jovana Lekovich, MD
Matthew A. Lederman, MD Eric Flisser, MD Jeffrey Klein, MD Kimberley A. Thornton, 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