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Our Team

Our team of physicians, embryologists and nurses are all subspecialty-trained and leaders in the field of reproductive endocrinology.

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The Johns Hopkins Standard of Care

At Johns Hopkins, our patients receive the highest level of care. Our experts receive additional training and undergo examinations to stay knowledgeable of the latest standards and innovation in gynecology and obstetrics. When you receive care at Johns Hopkins, you are in the hands of board-certified health care leaders who are recognized by the American Board of Obstetrics & Gynecology for their exceptional training.

Reproductive Endocrinologists

Reproductive Endocrinology and Infertility Fellows

  • Lucy Chen, M.D.

    Lucy Chen Headshot
  • Megan Gornet, M.D.

    Megan Gornet, M.D.
  • Anita Madison, M.D.

    Anita Madison
  • Susan Nasab, M.D.

    Headshot of Dr. Susan Nasab
  • Kathryn Schmiech, M.D.

    Kathryn Schmiech

Reproductive Endocrinology and Infertility Nurse Practitioners

  • Julie Luterzo, NP

    REI Nurse Practitioner

    Julie Luterzo
  • Ashley Shaffer, NP

    REI Nurse Practitioner

    Ashley Shaffer


Michal Secker, FNP-C

Michal Secker FNP-C is a Nurse Practitioner at the James Buchanan Brady Urological Institute and works at the Johns Hopkins Hospital as well as the Greenspring Outpatient Center. She works collaboratively with Dr. Amin S. Herati, MD, the Director of Men's Health and Director of Male Infertility.

Michal Secker

IVF Nurses

  • Stephanie Bianco, MSN
  • Natasha Calleri, BSN, RN-OB
  • Jennifer Chavis, BSN
  • Jennifer Costello, MSN, Third Party Reproduction Coordinator
  • Megan Mallory, BSN, RNC
  • Audrey Moore, BSN
  • Sarah O'Neill, MSN, RN, Nurse Manager
  • Shannon Sumner, MSN
  • Monicka Williams, BSN

Laboratory Director



  • Kathleen Broman, B.S.
  • Whitney Glenn, B.S.
  • Sarah Janney, B.S.
  • Samantha Keller, B.S.
  • Jossiemar Perez Horta, B.S., M.S.
  • Sian Simeone, B.S., M.S.
  • Meaghan Yates , B.S.


  • Carolina Petrella, B.S.
  • Kayla Silva, B.S.

Financial Counselors

  • Lisa Hartwig
  • Jazmine Parnell
  • Kirsten Perry
  • Makeda Williams

Support Staff

  • Melony Heck, Administrative & Surgical Coordinator
  • Jennifer Lake, Administrative & Surgical Coordinator
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