Daniel Kaser, M.D.

Attending Physician at RMA of North California

RMA of North California

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Daniel Kaser, M.D.


Dr. Daniel Kaser, MD, FACOG is an attending physician at Reproductive Medicine Associates of North California and an Assistant Professor at Thomas Jefferson University in the Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility. He received his medical degree from Dartmouth Medical School, and completed internship and residency in OB/GYN at Harvard Medical School in the Brigham and Women’s / Massachusetts General Hospital Integrated Residency Program, where he led resident education as the Teaching Chief Resident. Dr. Kaser then continued sub-specialty training at Harvard Medical School as a Clinical Instructor and Fellow in Reproductive Endocrinology and Infertility at Brigham and Women’s Hospital, Center for Infertility and Reproductive Surgery where he was voted outstanding teacher of medical students and residents for four consecutive years. He is a board certified Obstetrician Gynecologist, Fellow of the American Congress of Obstetricians and Gynecologists and member of the American Society for Reproductive Medicine.

In 2014 his basic research work in the IVF laboratory earned funding from the National Institutes of Health and the Foundation for Embryonic Competence and was awarded the 2016 ASRM Scientific Program Prize Paper, “Randomized controlled trial of low (5%) vs. ultralow (2%) oxygen tension for in vitro development of human embryos”. A follow-up clinical study at RMANJ, the “LO2 trial, Phase 1” was recognized with the 2017 SRBT Clinical Science Award.

Dr. Kaser has been invited to speak nationally and internationally and has authored numerous peer-reviewed publications, videos and chapters. He recently authored the chapter “Assisted Reproduction” in Yen and Jaffe’s Reproductive Endocrinology 8th Edition. He serves on the Editorial Board for Fertility and Sterility, is an Ad Hoc Reviewer for the Journal of Assisted Reproduction Genetics, Reproductive BioMedicine Online, and Human Reproduction and worked as a Consultant for the World Health Organization (WHO) as a member of the Expert Working Group for Assisted Reproductive Technologies. His research interests include oocyte and embryo cryopreservation, third-party reproduction, and maternal and neonatal outcomes following IVF.

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BS, BA Ohio State University (2003)
MD Dartmouth Medical School (2009)
Residency Harvard Medical School, Brigham and Women’s Hospital / Massachusetts General Hospital Integrated Residency Program (2013)
Fellowship Harvard Medical School, Brigham and Women’s Hospital (2013)
CREST Scholar Duke University (2017)

Honores y reconocimientos

SRBT Clinical Science Award 2017
ASRM Scientific Prize Paper 2016
Research grant recipient from the National Institutes of Health & the Foundation for Embryonic Competence 2014-2016
Outstanding Fellow Teacher Award, Harvard OB/GYN Residents 2013-2016
Outstanding Resident Teacher Award, Harvard Medical Students 2012
Consultant for the World Health Organization (WHO), member of Expert Working Group for Assisted Reproductive Technologies
SART Representative - ASRM Content Review Committee


  • Oocyte, embryo and blastocyst cryopreservation in ART: systematic review and meta-analysis comparing slow-freezing versus vitrification to produce evidence for the development of global guidance.
    Rienzi L, Cracia C, Maggiulli R, LaBarbera AR, Kaser DJ, Ubaldi FM, Vanderpoel S, Racowsky C.
    Hum Reprod Update, 23:139-155. 2017.

  • Assisted Reproduction. Yen and Jaffe’s Reproductive Endocrinology: Physiology, Pathophysiology and Clinical Management, 8th edition, 2017.
    Kaser DJ, Ginsburg ES, Carrell DT, Racowsky C.
    Eds. Strauss JF and Barbieri RL. Philadelphia, PA: Elsevier.

  • Embryonic factors associated with recurrent implantation failure. Recurrent Implantation Failure, 2017.
    Kaser DJ and Racowsky C.
    Eds. Franasiak JM and Scott RT. New York, NY: Springer.

  • Building a model to increase live birth rate through patient-specific optimization of embryo transfer day.
    Goldman RH, Kaser DJ, Farland LV, Missmer SA, Srouji SS, Racowsky C.
    J Assist Reprod Genet, 33:1525-32. 2016.

  • Robotic single-site myomectomy: a step-by-step tutorial.
    Gargiulo AR, Lewis EI, Kaser DJ, Srouji SS.
    Fertil Steril, 104(5):e13. 2015.

  • Cryopreserved embryo transfer is an independent risk factor for placenta accreta in the IVF/ICSI population.
    Kaser DJ, Melamed A, Bormann CL, Myers DE, Missmer SA, Walsh BW, Racowsky C, Carusi DA.
    Fertil Steril, 103:1176-84. 2015.

  • Techniques for enclosed morcellation in gynecologic surgery.
    Srouji SS, Kaser DJ, Gargiulo AR.
    Fertil Steril103:e34. 2015.

  • When is clomiphene or gonadotropin IUI futile? Results of the Fast Track and Standard Treatment Trial and the Forty and Over Treatment Trial, two prospective randomized controlled trials.
    Kaser DJ, Goldman MB, Fung JL, Alper MM, Reindollar RH.
    Fertil Steril, 102:1331-7. 2014.

  • Effect of serum progesterone concentration on day of embryo transfer in donor oocyte cycles.
    Brady PC, Kaser DJ, Correia K, Missmer S, Ashby R, Ginsburg ES, Racowsky, C.
    J Assist Reprod Genet, 31:569-75. 2014.

  • Clinical outcomes following time-lapse monitoring for selection of preimplantation embryos: A systematic review.
    Kaser DJ and Racowsky C.
    Hum Reprod Update, 20:617-31. 2014.

  • Embryo biopsy for aneuploidy detection in the general infertility population.
    Kaser DJ and Ginsburg ES.
    Seminars of Reproductive Medicine, vol 31, 2014. Ed. V Baker. New York, NY: Thieme Medical Publishers.

  • Predictors of twins following cryopreserved double embryo transfer on day 3.
    Kaser DJ, Correia KF, Missmer SA, Hornstein M, Racowsky C.
    J Assist Reprod Genet, 30:1023-30. 2013.

  • Intramuscular progesterone versus Crinone 8% gel for luteal phase support in day 3 cryopreserved embryo transfer.
    Kaser DJ, Ginsburg ES, Missmer SA, Correia KF, Racowsky C.
    Fertil Steril, 98:1464-9, 2012.

  • Developmental potential of embryos from intracytoplasmic sperm injection cycles containing fragmented oocytes.
    Kaser DJ, Reichman DE, Ginsburg ES, Politch JA, Racowsky C.
    97:338-43. 2012.

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