Barry Witt

Barry Witt, MD


Reproductive Endocrinology

Medical School

New York Medical College


Jacobi Medical Center


Tulane Medical Center

Board Certifications

  • Obstetrics and Gynecology - American Board of Obstetrics and Gynecology
  • Reproductive Endocrinology - American Board of Obstetrics and Gynecology


  • Greenwich Fertility

    55 Holly Hill Lane Suite 270 Greenwich, CT 06830

    Main: 203-863-2990
    Fax: 203-863-2980

More about Barry Witt, MD


Dr. Barry Witt has been offering reproductive care for over 25 years. He is board certified in reproductive endocrinology and obstetrics and gynecology (OB/GYN). His special interests include:

  • Assisted reproductive technology
  • Hysteroscopy
  • In vitro fertilization (IVF)
  • Infertility
  • Preimplantation genetic diagnosis (PGD)
  • Reproductive surgery

Dr. Witt earned his medical degree from New York Medical College. He completed his residency at Albert Einstein College of Medicine in New York City. He then pursued a fellowship in reproductive endocrinology at Tulane University School of Medicine in New Orleans.

Throughout Dr. Witt's career, he’s been recognized with many prestigious awards and honors. He serves on multiple national committees and has published several scientific articles.

Special Interests

  • Infertility
  • Assisted reproductive technology
  • In vitro fertilization (IVF)
  • Preimplantation genetic diagnosis (PGD)
  • Reproductive surgery
  • Hysteroscopy

Published Work

Witt B, Wolf GC, Wainwright CW, Johnston PD, Thorneycroft IH.  Relaxin, CA 125, progesterone, estradiol, Schwangershaft protein (SP1), and human chorionic gonadotropin as predictors of outcome in threatened and non-threatened pregnancies. Fertil Steril. 53(6):1029, 1990.

Wolf GC, Witt B. Local methotrexate injection for ectopic pregnancy. J Reprod Med. 36(7):489-92, 1991.

Witt B, Miles RA, Wolf GC, Koulianos GT, Thorneycroft IH. CA 125 levels in abruptio placentae. Am J Obstet Gynecol. 164(6):1225-27, 1991.

Witt B, Wolf GC, Wainwright CJ, Thorneycroft IH. Endocrine function of granulosa cell tumors in vivo. Gynecologic and Obstetric Investigation. 33:59-64, 1992.

Naz RK, Butler A, Witt B, Barad DH, Menge A. Levels of interferon-gamma and tumor necrosis factor-alpha in sera and cervical mucus of fertile and infertile women: implication in infertility. J Reprod Immunol. 29:105-117, 1995. 

Witt B, Barad DH, Barg P, Cohen BL, Lindheim SR, Testaiuti L, Amin HK. Basal serum follicle stimulating hormone (FSH) and estradiol levels as predictors of pregnancy in unstimulated donor insemination cycles. Assist Reprod Genet. 12(3):157-60, 1995.

Lindheim SR, Barad DH, Zinger M, Witt B, Amin H, Cohen B, Fisch H, Barg P. Abnormal sperm morphology is highly predictive of pregnancy outcome during controlled ovarian hyperstimulation and intrauterine insemination. J Assist Reprod Genet. 13(7):569-72, 1996.

Witt B, Pollard JW. Colony stimulating factor-1 in human follicular fluid. Fertil Steril. 68:259-64, 1997.

Witt B. Treatment of hematotrachelos following dilatation and curettage. J Reprod Med. 44(1):68-70, 1999.

Bevilacqua K, Barad D, Youchah J, Witt B. Is affect associated with infertility treatment outcome? Fertil Steril. 73(3):648-9, 2000.

Barad DH and Witt B. Multiple pregnancies and assisted reproductive technologies. J Women’s Health. 9(2):1-6, 2000.

Kovacs P, Barg P, Witt B. Hypothalamic-pituitary suppression with oral contraceptive pills does not improve outcome in poor responder patients undergoing IVF-ET. J Assist Reprod Genet. 18(7):391-394, 2001.

Kovacs P, Witt B. Day six estradiol level predicts cycle cancellation among poor responder patients undergoing IVF-ET cycles using a GnRH agonist flare regimen. J Assist Reprod Genet. 19:349-353, 2002.

Pal L, Kovacs P, Witt B, Jindal S, Santoro N, Barad D. Postthaw blastomere survival is predictive of the success of frozen-thawed embryo transfer cycles. Fertil Steril. 82:821-6, 2004.

Pal L, Jindal S, Witt B, Santoro N. Less is more: increased gonadotropin use for ovarian stimulation adversely influences clinical pregnancy and live birth after in vitro fertilization. Fertil Steril. Jun;89(6):1694-701, 2008.


  • Member, American Society for Reproductive Medicine
  • Fellow, American College of Obstetrics and Gynecology
  • Member, Society of Reproductive Endocrinology and Infertility
  • Member, New York Obstetrical Society
  • Member, American Institute of Ultrasound in Medicine (AIUM)
  • President, Westchester Obstetrics and Gynecology Society
  • Member, Society for Advanced Reproductive Technologies (SART) Executive Council

Academic Appointment

Associate Professor of Obstetrics & Gynecology (Clinical), New York University School of Medicine


English and Spanish (some)

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