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Valerie Lynn Baker, MD MPP
- Director, Division of Reproductive Endocrinology and Infertility
- Professor of Gynecology and Obstetrics
Expertise: Reproductive Endocrinology and Infertility, Gynecology
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Katie E. Cameron, MD MBE
- Assistant Professor of Gynecology and Obstetrics
Expertise: Gender Affirming Care, Gynecology, Reproductive Endocrinology and Infertility
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Kamaria C. Cayton Vaught, MD
- Assistant Professor of Gynecology and Obstetrics
Expertise: Reproductive Endocrinology and Infertility, Gynecology
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Chantel Cross, MD
- Director, Reproductive Endocrinology and Infertility Fellowships
- Assistant Professor of Gynecology and Obstetrics
Expertise: Reproductive Endocrinology and Infertility, Gynecology
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Endrika Leon Hinton, MD
- Assistant Professor of Gynecology and Obstetrics
Expertise: Gynecology, Reproductive Endocrinology and Infertility
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Pardis Hosseinzadeh, MD MSC
- Assistant Professor of Gynecology and Obstetrics
Expertise: Gynecology, Reproductive Endocrinology and Infertility
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Ziad Rafic Hubayter, MD MPH
- Assistant Professor of Gynecology and Obstetrics
Expertise: Gynecology, Reproductive Endocrinology and Infertility
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Vasiliki Moragianni, MD MSC
- Assistant Professor of Gynecology and Obstetrics
Expertise: Reproductive Endocrinology and Infertility, Gynecology
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James Segars, MD
- Director, Division of Reproductive Science and Women’s Health Research
- Professor of Gynecology and Obstetrics
Expertise: Reproductive Endocrinology and Infertility, Gynecology
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Howard A. Zacur, MD
- Professor of Gynecology and Obstetrics
Expertise: Gynecology, Reproductive Endocrinology and Infertility
Our Team
Our team of physicians, embryologists and nurses are all subspecialty-trained and leaders in the field of reproductive endocrinology.
![Icon of a badge](/-/media/gynecology-obstetrics/images/icons/star-image-white-space.png)
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
Abigail Combs, M.D.
![Abigail Combs](/-/media/gynecology-obstetrics/images/fertility-center-images/abigail-combs.png?h=145&iar=0&w=139&hash=4D63D2D3A79C188C10C52B32FC0DCE59)
Megan Gornet, M.D.
![Megan Gornet, M.D.](/-/media/gynecology-obstetrics/images/fertility-center-images/gornet-megan.jpg?h=600&iar=0&w=400&hash=5BC84ABC6A4094E7772DCFCDE67CA7E1)
Anita Madison, M.D.
![Anita Madison](/-/media/gynecology-obstetrics/images/fertility-center-images/anita-madison-photo.jpg?h=676&iar=0&w=600&hash=84D615835E9AA8AADE4FBCB2DFB2B225)
Kathryn Schmiech, M.D.
![Kathryn Schmiech](/-/media/gynecology-obstetrics/images/fertility-center-images/kathryn-schmiech-photo.jpg?h=225&iar=0&w=180&hash=EA20120B87BA8ED6BF7AD7032BBEBE88)
Julie Luterzo, NP
REI Nurse Practitioner
![Julie Luterzo](/-/media/gynecology-obstetrics/images/fertility-center-images/julie-luterzo.jpg?h=356&iar=0&w=356&hash=C7037AA9948DDDD931ABF4C0FF874FE8)
Urologists
Amin Herati, MD
![](https://cdn-images.kyruus.com/providermatch/johnshopkins/photos/200/herati-amin-1205153947.jpg)
- Director of Male Infertility and Men’s Health
- Assistant Professor of Urology
Expertise: Urology
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](/-/media/gynecology-obstetrics/images/bio-photos/michal-secker.jpg?h=600&iar=0&w=440&hash=E45DD654BD29DE0F2778D7E9D194534D)
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
- Shannon Sumner, MSN
- Susan Taylor, BSN
- Monicka Williams, BSN
Laboratory Director
Mark Paul David Dow, PhD
![](https://kyruus-app-static.kyruus.com/providermatch/johnshopkins/photos/200/dow-mark.jpg?1716142704439)
- REI Laboratory Director: Johns Hopkins Fertility Center
- Assistant Professor of Gynecology and Obstetrics
Andrology/Endocrine/Embryology Team
- Kathleen Broman, B.S.
- Whitney Glenn, B.S.
- Sarah Janney, B.S.
- Samantha Keller, B.S.
- Raunjae Payne, B.S.
- Jossiemar Perez Horta, B.S., M.S.
- Carolina Petrella, B.S.
- Kayla Silva, B.S.
- Sian Simeone, B.S., M.S.
- Meaghan Yates, B.S.
Financial Counselors
- Shardonnae Belin
- Lisa Hartwig
- Kirsten Perry
- Makeda Williams
Support Staff
- Melony Heck, Administrative & Surgical Coordinator
- Jennifer Lake, Administrative & Surgical Coordinator