Caleb Kallen, M.D., Ph.D., FACOG, earned his medical degree and doctorate in philosophy (Molecular and Cellular Biology) from the University of Pennsylvania. He went on to complete his residency training in obstetrics and gynecology at the Hospital of the University of Pennsylvania in Philadelphia. Dr. Kallen completed his subspecialty training in reproductive endocrinology and infertility at Yale University in New Haven, Connecticut. Dr. Kallen then served as Assistant Professor at Emory University for 7 years, followed by a position as Associate Professor at Thomas Jefferson University where he was elevated to the position of Director of the Division of Reproductive Endocrinology and Infertility. During his time as a full time academician Dr. Kallen performed NIH-funded basic biomedical research, received numerous teaching awards, and built active clinical practices. Dr. Kallen has expertise in the diagnosis and treatment of infertility, including in vitro fertilization (IVF), ovulation induction with intrauterine inseminations (IUI), donor egg treatments, endometriosis, polycystic ovary syndrome, and preimplantation genetic diagnosis. He applies the latest clinical data, state-of-the-art technology, and his extensive clinical experience to optimize pregnancy rates while minimizing patient stress with his supportive approach to care. Dr. Kallen is a member of the American Society for Reproductive Medicine, the Society for Reproductive Endocrinology and Infertility, the Society for Reproductive Investigation, and the American Congress of Obstetricians and Gynecologists. Raised in West Philadelphia, Dr. Kallen is married with three children and enjoys home repair (except painting), woodworking, the NFL, cooking, and eating. Dr. Kallen is rated as an Advanced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Infertility, Ovarian Hyperstimulation Syndrome, Ovarian Overproduction of Androgens, and Tubal Disease.

Allison Lange is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Lange is rated as an Advanced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. Her top areas of expertise are Infertility, Tubal Disease, Endometrial Polyps, and Ovarian Hyperstimulation Syndrome. Dr. Lange is currently accepting new patients.

Jacqueline Gutmann is a Reproductive Medicine provider in Philadelphia, Pennsylvania. Dr. Gutmann is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. Her top areas of expertise are Infertility, Tubal Disease, Ovarian Hyperstimulation Syndrome, and Ovarian Overproduction of Androgens. Dr. Gutmann is currently accepting new patients.

Clarisa Gracia is a Reproductive Medicine provider in Philadelphia, Pennsylvania. Dr. Gracia is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. Her top areas of expertise are Infertility, Sertoli Cell-Only Syndrome, Polycystic Ovary Syndrome, and Endometriosis. Dr. Gracia is currently accepting new patients.

Suneeta Senapati is a Reproductive Medicine provider in Philadelphia, Pennsylvania. Dr. Senapati is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. Her top areas of expertise are Infertility, Ectopic Pregnancy, Endometriosis, Polycystic Ovary Syndrome, and Salpingo-Oophorectomy.

Monica Mainigi is a Reproductive Medicine provider in Philadelphia, Pennsylvania. Dr. Mainigi is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. Her top areas of expertise are Infertility, Turner Syndrome, Mixed Gonadal Dysgenesis, Salpingo-Oophorectomy, and Intrauterine Device Insertion. Dr. Mainigi is currently accepting new patients.

Jerome Check is a Reproductive Medicine provider in Elkins Park, Pennsylvania. Dr. Check is rated as a Distinguished provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Infertility, Ovarian Hyperstimulation Syndrome, Trophoblastic Tumor Placental Site, and Interstitial Cystitis.

Brianna Schumacher, M.D., earned her medical degree from the Medical College of Wisconsin and completed her residency in obstetrics and gynecology from the University of Massachusetts Medical School. She then went on to complete a fellowship in reproductive endocrinology and infertility and a masters in clinical research at the University of North Carolina, Chapel Hill. Dr. Schumacher has received several honors including a UMass Memorial OB/Gyn Residency Teaching Award, Pacific Coast Reproductive Society Research Scholarship for 2016 Annual Meeting, and the American Society for Reproductive Medicine (ASRM) 2017 Early Pregnancy Special Interest Group Prize Paper. An advocate for early fertility diagnosis and treatment, as well as egg freezing for women to preserve their fertility for future family building options, Dr. Schumacher was a clinical instructor in gynecology at the University of North Carolina, and has held a variety of leadership roles within the American Society for Reproductive Medicine, New England Fertility Society, Pacific Coast Society, American College of Obstetrics and Gynecology, and American Medical Association. Dr. Schumacher joined Shady Grove Fertility in 2018 and sees patients in SGF’s Center City – Philadelphia and Chesterbrook, PA locations. Dr. Schumacher is rated as an Advanced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. Her top areas of expertise are Infertility, Ovarian Hyperstimulation Syndrome, Ovarian Overproduction of Androgens, and Asherman Syndrome.

Nigel Pereira is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Pereira is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Infertility, Ectopic Pregnancy, Bartholin Cyst or Abscess, Endoscopy, and Oophorectomy.

Sally F. Vitez, M.D., earned her undergraduate degree with honors in Molecular Biology from Kenyon College. Following undergrad, she spent time in Arusha, Tanzania teaching high school students and volunteering in a local hospital. She then worked as a researcher at the National Institutes of Health prior to earning her medical degree from Robert Wood Johnson Medical School of Rutgers University. She then completed her residency in Obstetrics and Gynecology at Columbia University – New York Presbyterian Hospital where she was elected by faculty to serve as administrative chief resident. From there, she completed her fellowship in Reproductive Endocrinology and Infertility at the University of Pittsburgh Medical Center. Dr. Vitez is board certified in obstetrics and gynecology (OB/GYN) and board eligible in reproductive endocrinology and infertility (REI). Her research interests include male fertility, preimplantation genetic testing, the impact of obesity and optimizing fertility treatment outcomes. She is a member of the American Society for Reproductive Medicine (ASRM). Dr. Vitez is committed to ensuring her patients feel heard, understood, and supported throughout their fertility journey. Dr. Vitez is rated as an Advanced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. Her top areas of expertise are Ovarian Overproduction of Androgens, Ovarian Hyperstimulation Syndrome, Infertility, and Sertoli Cell-Only Syndrome.

Isaac E. Sasson, M.D., Ph.D., FACOG, received his medical degree and doctorate in genetics from Yale Medical School. He went on to complete his residency in obstetrics and gynecology at Yale-New Haven Hospital and his subspecialty training in reproductive endocrinology and infertility at the Hospital of the University of Pennsylvania in Philadelphia. He has expertise in the diagnosis and treatment of infertility, including in vitro fertilization, donor egg treatment, endometriosis, polycystic ovary syndrome, and preimplantation genetic diagnosis. He utilizes both his clinical experience and extensive background in genetics research to optimize patient pregnancy and live birth rates. Dr. Sasson has been featured in many publications, including Main Line Parent, Philadelphia Life, and Suburban Life. He has also appeared on The Katie Couric Show in a segment highlighting male factor infertility and on CBS 3 Philadelphia, where he discussed technological advancements in fertility treatment. Originally from Monmouth County, New Jersey, Dr. Sasson is married with three children and enjoys yoga, spinning, hiking, and woodworking. Dr. Sasson is currently associate residency director of ob-gyn residents at Lankenau Hospital outside of Philadelphia. He is a member of the American Society for Reproductive Medicine, American Congress of Obstetricians and Gynecologists, Obstetrical Society of Philadelphia, and Philadelphia Area Reproductive Endocrine Society. Dr. Sasson is rated as an Advanced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Infertility, Ovarian Hyperstimulation Syndrome, Premature Ovarian Failure, and Ovarian Overproduction of Androgens.

Briana Rudick is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Rudick is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. Her top areas of expertise are Infertility, Ovarian Hyperstimulation Syndrome, and Ovarian Overproduction of Androgens.

Margaret Hopeman is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Hopeman is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. Her top areas of expertise are Infertility, Sertoli Cell-Only Syndrome, and Ovarian Hyperstimulation Syndrome. Dr. Hopeman is currently accepting new patients.

Wei Zhao is a primary care provider, practicing in Internal Medicine in Philadelphia, Pennsylvania. Dr. Zhao is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Microsporidiosis, Lung Adenocarcinoma, Lung Cancer, Coronary Artery Bypass Graft (CABG), and Osteotomy.

Arthur Castelbaum is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Abington, Pennsylvania. Dr. Castelbaum is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Infertility, Tubal Disease, Premature Ovarian Failure, and Ovarian Hyperstimulation Syndrome. Dr. Castelbaum is currently accepting new patients.

Peter Van Deerlin is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Marlton, New Jersey. Dr. Van Deerlin is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Tubal Disease, Infertility, Angiomyoma, and Uterine Fibroids. Dr. Van Deerlin is currently accepting new patients.

Stephen Sawin is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Marlton, New Jersey. Dr. Sawin is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Infertility, Polycystic Ovary Syndrome, Tubal Disease, and Mullerian Aplasia. Dr. Sawin is currently accepting new patients.

John Orris is a Reproductive Medicine provider in Bryn Mawr, Pennsylvania. Dr. Orris is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Infertility, Sertoli Cell-Only Syndrome, Premature Ovarian Failure, and Tubal Disease.

Michael Glassner is a Reproductive Medicine provider in Bryn Mawr, Pennsylvania. Dr. Glassner is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Infertility, Sertoli Cell-Only Syndrome, Endometritis, and Polycystic Ovary Syndrome.

Oumar Kuzbari is a Reproductive Medicine provider in Marlton, New Jersey. Dr. Kuzbari is rated as an Experienced provider by MediFind in the treatment of Ovarian Hyperstimulation Syndrome. His top areas of expertise are Infertility, Tubal Disease, Endometrial Polyps, and Mullerian Aplasia.