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Due to interest in the COVID-19 vaccines, we are experiencing an extremely high call volume. Please understand that our phone lines must be clear for urgent medical care needs. We are unable to accept phone calls to schedule COVID-19 vaccinations at this time. When this changes, we will update this website. Our vaccine supply remains limited. Read all COVID-19 Vaccine Information.

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Gynecology & Obstetrics

Fertility Center

 

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

Photo of Dr. Valerie Lynn Baker, M.D.

Valerie Lynn Baker, M.D.

Professor of Gynecology and Obstetrics
Director, Division of Reproductive Endocrinology and Infertility
TeLinde-Wallach Professor of Gynecology and Obstetrics
Expertise, Disease and Conditions: Diminished Ovarian Reserve, Dysfunctional Uterine Bleeding, Fertility before and after Cancer Treatment, Fertility Preservation, In Vitro Fertilization, Infertility, Menopause, Ovarian Dysfunction, Polycystic Ovarian Syndrome (PCOS), Premature Ovarian Failure, Prolactin Disorders, Recurrent Pregnancy Loss, Reproductive Endocrinology
 
Photo of Dr. Katherine Elizabeth Cameron, M.D.

Katherine Elizabeth Cameron, M.D.

Assistant Professor of Gynecology and Obstetrics
Expertise, Disease and Conditions: Diminished Ovarian Reserve, Fertility before and after Cancer Treatment, Fertility Preservation, In Vitro Fertilization, Infertility, Ovarian Dysfunction, Polycystic Ovarian Syndrome (PCOS), Premature Ovarian Failure, Recurrent Pregnancy Loss, Reproductive Endocrinology
 
Photo of Dr. Mindy Sue Christianson, M.D.

Mindy Sue Christianson, M.D.

Associate Professor of Gynecology and Obstetrics
Medical Director, Johns Hopkins Fertility Center
Director, Fertility Preservation
Director, IVF Program Division of Reproductive Endocrinology & Infertility
Expertise, Disease and Conditions: Adolescent Fertility Preservation, Endometriosis, Fertility before and after Cancer Treatment, Fibroids, Gynecology and Obstetrics, In Vitro Fertilization, Infertility, Menopause, Pediatric- Ob/Gyn, Polycystic Ovarian Syndrome (PCOS), Reproductive Endocrinology
 
Photo of Dr. Chantel Ianthe Cross, M.D.

Chantel Ianthe Cross, M.D.

Assistant Professor of Gynecology and Obstetrics
Associate Director, Reproductive Endocrinology and Infertility Fellowships
Director, Patient Education
Expertise, Disease and Conditions: Endometriosis, Fertility before and after Cancer Treatment, Fertility Preservation, Fibroids, In Vitro Fertilization, Infertility, Menopause, Polycystic Ovarian Syndrome (PCOS), Recurrent Pregnancy Loss, Reproductive Endocrinology
 
Photo of Dr. James Hugh Segars, Jr, M.D.

James Hugh Segars, M.D. Jr

Professor of Gynecology and Obstetrics
Director, Division of Reproductive Science and Women’s Health Research
Expertise, Disease and Conditions: Endometriosis, Infertility, Reproductive Endocrinology
 
Photo of Dr. Howard A Zacur, M.D., Ph.D.

Howard A Zacur, M.D., Ph.D.

Professor of Gynecology and Obstetrics
Director, Reproductive Endocrinology and Infertility Fellowships
Expertise, Disease and Conditions: Dysfunctional Uterine Bleeding, Gynecology and Obstetrics, Infertility, Menopause, Ovarian Dysfunction, Prolactin Disorders, Uterine Fibroids
 

Nurse Practitioner

Stefanie Nelson Tyler, DNP, WHNP-BC

Headshot of Stefanie Nelson Tyler
 

Reproductive Endocrinology and Infertility Fellows

  • Maria Facadio Antero, M.D.

    Maria Antero Headshot

  • Lucy Chen, M.D.

    Lucy Chen Headshot

  • Susan Nasab, M.D.

    Headshot of Dr. Susan Nasab

  • Lauren Reschke, M.D.

    Lauren Reschke Headshot

  • Kamaria Cayton Vaught, M.D.

    Kamaria Cayton Headshot

Urologists

Photo of Dr. Amin Sedaghat Herati, M.D.

Amin Sedaghat Herati, M.D.

Assistant Professor of Urology
Assistant Professor of Gynecology and Obstetrics
Director of Male Infertility and Men’s Health
Expertise, Disease and Conditions: Benign Prostatic Hyperplasia (BPH), Erectile Dysfunction, Low Testosterone, Male Infertility, Pelvic Pain, Peyronie's Disease, Vasectomy Reversal
 

IVF Nurses

  • Jennifer Beckman, MSN, RN
  • Stephanie Bianco, BSN, RN
  • Kristy A. Cosme, BSN, RN-OB, C-EFM
  • Jennifer Costello, MSN, RN, Third Party Reproduction Coordinator
  • Sandra Grem BSN, RN
  • Karen Lynch, BSN, RN
  • Monicka Williams, BSN, RN

Laboratory Director

  • Scott Purcell Ph.D., HCLD

Embryologists

  • Kathleen Broman, B.S.
  • Samantha Keller, B.S.
  • Kimberly Thrift, B.S., CLS (CG)
  • Sian Simeone, B.S., M.S.

Andrologists

  • Melissa Bartness, M.S.
  • Carolina Petrella, B.S.

Financial Counselors

  • Lisa Hartwig
  • Kristen Larkin
  • Makeda Williams

Support Staff

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