Dr. Cohen is Director of Pediatric Neuro-Oncology and Clinical Director of the Division of Pediatric Oncology at the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins. He received his undergraduate degree at Brown University and earned his MD at the Upstate Medical University, in Syracuse, NY. He did his general Pediatric Residency and Chief Residency at the University of Colorado and completed his Pediatric Hematology/Oncology Fellowship at Johns Hopkins. He has served on the faculty since 1994. His research centers on clinical trials of novel therapeutics for children with brain tumors. Dr. Cohen is co-chair of the High-Grade Glioma committee for the Children's Oncology Group and in that capacity has a particular research interest in the development of therapeutics for the treatment of infiltrating gliomas. He serves on the scientific advisory board for a number of organizations including St. Baldricks and the Childhood Brain Tumor Foundation. He is on the editorial board for PDQ with responsibility for authorship of the pediatric CNS brain tumor summaries. The Pediatric Neuro-Oncology program conducts a broad range of research centered primarily around the development and testing of novel therapeutics for children with brain tumors. The multidisciplinary nature of this work translates into continual collaboration with specialists in pediatric neurosurgery, radiation oncology, neuropathology, neuroradiology, neurology, neuro-ophthalmology, neuropsychology, and other related disciplines. Dr. Cohen is rated as an Advanced provider by MediFind in the treatment of Intersex. His top areas of expertise are Glioma, Medulloblastoma, Brain Stem Cancer, Embryonal Tumor with Multilayered Rosettes, and Bone Marrow Aspiration.

Dr. Dobs is presently an active clinical researcher in the field of endocrine gonadal function. She is particularly interested in new forms of male hormone replacement therapy and has published extensively in the area of hormonal changes with aging and chronic disease. Her clinical practice covers general endocrinology, with a focus on sex hormone disorders in both men and women. As Director of the Johns Hopkins Clinical Research Network, she oversees a multi-institutional consortium of hospitals in the mid-Atlantic states dedicated to facilitating clinical research through an academic-community hospital partnership. Dr. Dobs is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Hypogonadism, Eunuchoidism Familial Hypogonadotropic, Testicular Failure, Isolated Hypogonadotropic Hypogonadism, and Hormone Replacement Therapy (HRT).

Dr. Angie Jelin is the assistant director of prenatal genetics at the Prenatal Diagnostic Center in the Division of Maternal-Fetal Medicine and an assistant professor in the Johns Hopkins Medicine Department of Gynecology and Obstetrics. Her areas of clinical expertise include prenatal genetic counseling, fetal imaging, chorionic villus sampling and amniocentesis, with a focus on fetal complications in pregnancy. Dr. Jelin earned her medical degree from Harvard Medical School. She did her residency in obstetrics and gynecology at the University of California, San Francisco, and then remained there to complete a maternal-fetal medicine and genetics fellowship. In 2015, Dr. Jelin joined the Johns Hopkins faculty, at which time she also received a Building Interdisciplinary Research Careers in Women’s Health grant to study fetal genetic disorders. Dr. Jelin’s research involves fetal imaging and genetic diagnoses, including whole exome sequencing. Dr. Jelin is a member of the American College of Obstetricians and Gynecologists, the Society of Maternal-Fetal Medicine and the International Society of Prenatal Diagnosis. She currently serves on the IRB committee of the American Board of Obstetrics and Gynecology. Dr. Jelin has published many articles in obstetrics and maternal-fetal medicine journals. Dr. Jelin is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Polyhydramnios, Bilateral Renal Agenesis Dominant Type, Lung Agenesis, and Atresia of Small Intestine.

Sonja Rasmussen, MD, MS is Professor in the Department of Genetic Medicine at Johns Hopkins School of Medicine. She joined Johns Hopkins after 4 years at the University of Florida (UF) College of Medicine and College of Public Health and Health Professions where she served as a Professor in the Departments of Pediatrics, Epidemiology, and Obstetrics and Gynecology and as the Director of UF’s Precision Health Program. Before joining University of Florida in 2018, she served for 20 years at the Centers for Disease Control and Prevention (CDC) in Atlanta, where she held several scientific leadership roles. She served in leadership roles during several CDC responses to public health emergencies, including 2009 H1N1 influenza, H7N9 influenza, Middle East Respiratory Syndrome (MERS), and Zika virus. Dr. Rasmussen is an author on >300 peer-reviewed publications and is the lead editor of The CDC Field Epidemiology Manual, released by Oxford University Press in 2019. Her research interests focus on understanding the effects of infections and medications during pregnancy, genetic and environmental risk factors for birth defects, and morbidity and mortality associated with genetic conditions. Dr. Rasmussen is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Achalasia Microcephaly Syndrome, Microcephaly, Cortical Dysplasia, Gastroschisis, and Knee Replacement.

Ambroise Wonkam is a Pediatrics specialist and a Medical Genetics provider in Baltimore, Maryland. Dr. Wonkam is rated as an Experienced provider by MediFind in the treatment of Intersex. His top areas of expertise are Anemia, Fragile X Syndrome, Pyle Disease, and Micrognathia.

Dr. Heather Noelle Di Carlo is an associate professor of urology at the Johns Hopkins University School of Medicine. She treats all pediatric urological disorders in young males and females while specializing in renal sparing surgery and complex reconstruction of the genitourinary tract in patients with the exstrophy-epispadias complex, disorders of sexual development (DSD) and other congenital anomalies. She serves as the Director of Pediatric Urology Research and is the interim Division Director of Pediatric Urology. A native of New York, Dr. Di Carlo graduated from Emory University with a B.S. in neuroscience and music, and the State University of New York at Stony Brook School of Medicine. Following general surgery and urology residency training at Stony Brook Medical Center, she completed a pediatric urology fellowship at the James Buchanan Brady Urological Institute. Dr. Di Carlo has special clinical and basic science interests in the exstrophy-epispadias complex, spina bifida and renal transplantation. Dr. Di Carlo is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Exstrophy of the Bladder, Exstrophy-Epispadias Complex, Cloacal Exstrophy, Bladder Reconstruction, and Osteotomy.

Dr. Malinda Wu is a pediatric endocrinologist seeing patients at the Johns Hopkins Children’s Center in Baltimore, Maryland. She specializes in a wide range of pediatric endocrine conditions including metabolic bone disease, pediatric osteoporosis and cystic fibrosis endocrinopathies. Dr. Wu received her M.D. from Jefferson Medical College, Thomas Jefferson University. She completed pediatrics residency at Penn State Hershey Medical Center and her pediatric endocrine fellowship at Emory University School of Medicine. She received her Master of Science in Clinical Research from Emory University (2021). Dr. Wu has been a faculty member at Johns Hopkins since 2021. Dr. Wu’s research interests are in metabolic bone disease and the health of women with cystic fibrosis. Dr. Wu’s current research is focused on women with cystic fibrosis and how estrogen supplementation may impact their health. She has received grant funding from the Cystic Fibrosis Foundation. Dr. Wu is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Osteogenesis Imperfecta, Hypogonadism, Exocrine Pancreatic Insufficiency, Familial Glucocorticoid Deficiency, and Hormone Replacement Therapy (HRT).

Rexford Ahima is an Endocrinologist in Baltimore, Maryland. Dr. Ahima is rated as an Experienced provider by MediFind in the treatment of Intersex. His top areas of expertise are Obesity, Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Sleeve Gastrectomy, and Gastric Bypass.

Jessica A. Marinaro, M.D., is a urologist with sub-specialty expertise in male infertility and microsurgery. Dr. Marinaro graduated with distinction from the University of Virginia in Charlottesville, Virginia, and earned her medical degree from Virginia Commonwealth University in Richmond, Virginia. She completed her urologic surgery residency training at MedStar Georgetown University Hospital in Washington, D.C.,and then pursued additional fellowship training in male infertility and microsurgery at Weill Cornell Medicine in New York City. Dr. Marinaro’s research interests include microsurgical management of male infertility, sperm DNA fragmentation, and optimizing outcomes for men with severe infertility, among others. She is a member of the American Society for Reproductive Medicine (ASRM), the American Urological Association (AUA), the Society for Male Reproduction and Urology (SMRU), and the Society for the Study of Male Reproduction (SSMR). As part of SGF’s Center for Male Fertility physician team, Dr. Marinaro works with patients to confront challenging situations to achieve their family-building goals. In her spare time, she enjoys traveling and taking advantage of any opportunity to try new things. Dr. Marinaro is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Sertoli Cell-Only Syndrome, Spermatogenesis Arrest, Infertility, Varicocele, and Vasectomy.

Stanley Chen is an Endocrinologist in Baltimore, Maryland. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of Intersex. His top areas of expertise are Thyroid Dysgenesis, Hyperaldosteronism, Adrenal Cancer, and Adrenocortical Carcinoma.

Sally Radovick is a Pediatric Endocrinologist in Baltimore, Maryland. Dr. Radovick is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Panhypopituitarism, Pediatric Growth Hormone Deficiency, Growth Hormone Deficiency (GHD), and Obesity.

Teresa York is a Pediatric Hematologist Oncology provider in Baltimore, Maryland. Dr. York is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Sickle Cell Disease, Acute Lymphoblastic Leukemia (ALL), Hereditary Spherocytosis, Hemoglobin SC Disease, and Bone Marrow Aspiration.

Lisa Kratz is a Medical Genetics provider in Baltimore, Maryland. Dr. Kratz is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Greenberg Dysplasia, Smith-Lemli-Opitz Syndrome, Rhizomelic Syndrome, and Chondrodysplasia Punctata Syndrome.

Jaclyn Murry is a Medical Genetics provider in Baltimore, Maryland. Dr. Murry is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Mosaicism, Turner Syndrome, and Intersex.

Nicole Fischer is an Obstetrics and Gynecologist in Baltimore, Maryland. Dr. Fischer is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Mayer-Rokitansky-Kuster-Hauser Syndrome, Uterine Fibroids, Mullerian Aplasia, and Kuster Syndrome.

Debra Counts is a Pediatric Endocrinologist in Baltimore, Maryland. Dr. Counts is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Idiopathic Short Stature (ISS), Klinefelter Syndrome, Short Stature (Growth Disorders), and Pediatric Growth Hormone Deficiency.

Jason Fixler is a Pediatric Hematologist Oncology provider in Baltimore, Maryland. Dr. Fixler is rated as an Advanced provider by MediFind in the treatment of Intersex. His top areas of expertise are Sickle Cell Disease, Hepatoblastoma, Ewing Sarcoma, Reticulohistiocytoma, and Bone Marrow Aspiration.

Cigdem (“Cori”) Tanrikut, MD, FACS, graduated summa cum laude from the University of Pennsylvania and earned her medical degree from the Georgetown University School of Medicine. She completed her urologic surgery residency training at Massachusetts General Hospital (MGH)/Harvard Medical School, and then continued on to Weill Cornell Medical College in New York to pursue a fellowship in male infertility and microsurgery. Upon completing her fellowship training, she became the Director of Male Reproductive Medicine at the MGH Fertility Center. While at Harvard, she was an Associate Professor in Surgery at Harvard Medical School. In 2015, she was named the Quality Chair for the MGH Department of Urology, and in 2017, she became the President of the Society for Male Reproduction and Urology. Dr. Tanrikut’s research endeavors include assessing how lifestyle and medications may impact male reproductive health, sperm banking trends, and sperm-related factors to optimize fertility treatment outcomes. Dr. Tanrikut joined SGF in 2017. Dr. Tanrikut is rated as an Experienced provider by MediFind in the treatment of Intersex. Her top areas of expertise are Infertility, Sertoli Cell-Only Syndrome, Varicocele, Vasectomy, and Penectomy.

Dr. James Segars is director of the Division of Reproductive Science and Women’s Health Research and a professor in the Johns Hopkins Department of Gynecology and Obstetrics. He leads the Howard W. and Georgeanna Seegar Jones Laboratory of Reproductive Sciences and Women's Health Research, where he and his team focus on endometriosis, uterine fibroids, and reproductive and ovarian disorders. Dr. Segars received his undergraduate degree from Duke University and earned his M.D. from Duke University School of Medicine. He completed his residency in obstetrics and gynecology and a clinical fellowship in reproductive endocrinology at Vanderbilt University. Dr. Segars performed a postdoctoral fellowship at the Laboratory of Molecular Growth Regulation at the National Institute of Child Health and Human Development. He joined the Johns Hopkins faculty in 2015. Before coming to Johns Hopkins, Dr. Segars was head of the Unit on Reproductive Endocrinology and Infertility at the National Institute of Child Health and Human Development and a professor in the Department of Obstetrics and Gynecology at the Uniformed Services University of the Health Sciences. Dr. Segars has published more than 160 peer-reviewed research articles and serves on the editorial boards of Reproductive Sciences, Molecular Human Reproduction, Seminars in Reproductive Medicine, and Fertility and Sterility. Dr. Segars is rated as an Experienced provider by MediFind in the treatment of Intersex. His top areas of expertise are Uterine Fibroids, Infertility, Endometriosis, Hysterectomy, and Intrauterine Device Insertion.

Dr. Herati is a urologist with fellowship training in male infertility and andrology. He has specialized training to perform complex reconstructions of the reproductive system, including vasectomy reversal with vasovasostomy and vasoepididymostomy. Additionally, he has an interest in treating patients with chronic prostatitis and pelvic pain, as well as patients experiencing low testosterone, erectile dysfunction, Peyronie’s disease and benign prostatic hyperplasia (BPH). Of note, he has the ability to perform fertility treatments on patients who have experienced spinal cord injuries using nonsurgical methods of sperm extraction. Dr. Herati believes in an individualized approach to care that addresses the whole patient. He invests significant time into building a rapport with his patients so that they feel comfortable opening up about these issues, allowing him to accurately identify and manage each patient’s needs. His research interests include decoding the genetic basis of male infertility, investigating the impact of referred pain from peripheral nerves to the bladder, and characterizing the effects of low testosterone on prostate inflammation and PSA screening. Dr. Herati sees patients at both the Johns Hopkins Hospital and The Johns Hopkins Bayview Medical Center. Videos Amin Herati, M.D.Urologist. Dr. Herati is rated as an Experienced provider by MediFind in the treatment of Intersex. His top areas of expertise are Enlarged Prostate (BPH), Varicocele, Hypogonadism, Nephrectomy, and Prostatectomy.