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 Experienced provider by MediFind in the treatment of Endometriosis. His top areas of expertise are Infertility, Ovarian Hyperstimulation Syndrome, Ovarian Overproduction of Androgens, and Tubal Disease.

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

Patrick Teefey is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Teefey has been practicing medicine for over 17 years and is rated as an Advanced provider by MediFind in the treatment of Endometriosis. His top areas of expertise are Uterine Prolapse, Uterine Fibroids, Angiomyoma, Hysterectomy, and Salpingo-Oophorectomy. Dr. Teefey is currently accepting new patients.

Gina Mantia-Smaldone is an Obstetrics and Gynecologist and an Oncologist in Philadelphia, Pennsylvania. Dr. Mantia-Smaldone is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Ovarian Cancer, Endometrial Cancer, Virilizing Ovarian Tumor, Vaginectomy, and Hysterectomy.

Stephanie King is a Gynecologic Oncologist and an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. King is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Endometrial Stromal Sarcoma, Endometrial Cancer, Malignant Mixed Mullerian Tumor, Bladder Reconstruction, and Ureteroscopy.

Sun Kim is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Kim is rated as an Experienced provider by MediFind in the treatment of Endometriosis. His top areas of expertise are Angiomyoma, Uterine Fibroids, Endometriosis, and Bartholin Cyst or Abscess. Dr. Kim is currently accepting new patients.

Stephanie Thomas is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Thomas is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Gonorrhea, Female Genital Sores, Human Papillomavirus Infection, Hormone Replacement Therapy (HRT), and Salpingo-Oophorectomy. Dr. Thomas is currently accepting new patients.

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

Katherine Lackritz is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Lackritz is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Gonorrhea, Vaginal Cysts, Vaginal Dryness, Hormone Replacement Therapy (HRT), and Salpingo-Oophorectomy. Dr. Lackritz is currently accepting new patients.

Frances Baylson is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Baylson is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Hirsutism in Women, Polycystic Ovary Syndrome, Infertility, and Endometriosis. Dr. Baylson is currently accepting new patients.

Sandra Dayaratna is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Dayaratna is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Cervical Dysplasia, Human Papillomavirus Infection, Uterine Fibroids, Hysterectomy, and Salpingo-Oophorectomy. Dr. Dayaratna is currently accepting new patients.

Julia Switzer is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Switzer has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Vaginal Cysts, Vaginal Dryness, Gonorrhea, Hormone Replacement Therapy (HRT), and Salpingo-Oophorectomy. Dr. Switzer is currently accepting new patients.

Danielle Cullen is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Cullen is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Familial Chronic Mucocutaneous Candidiasis, Gonorrhea, Female Genital Sores, Hormone Replacement Therapy (HRT), and Salpingo-Oophorectomy. Dr. Cullen 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 Endometriosis. Her top areas of expertise are Infertility, Tubal Disease, Ovarian Hyperstimulation Syndrome, and Ovarian Overproduction of Androgens. Dr. Gutmann is currently accepting new patients.

Elizabeth Liveright is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Liveright is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Gonorrhea, Preeclampsia, Female Genital Sores, Hormone Replacement Therapy (HRT), and Salpingo-Oophorectomy. Dr. Liveright is currently accepting new patients.

Ryan Brannon is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Brannon is rated as an Experienced provider by MediFind in the treatment of Endometriosis. His top areas of expertise are Gonorrhea, Vaginal Bleeding Between Periods, Pelvic Inflammatory Disease, Hormone Replacement Therapy (HRT), and Intrauterine Device Insertion. Dr. Brannon is currently accepting new patients.

Millicent Zacher is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Zacher is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Infertility, Polycystic Ovary Syndrome, Angiomyoma, and Endometriosis. Dr. Zacher is currently accepting new patients.

Marianne Ruby is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Ruby is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Vulvovaginitis, Pelvic Inflammatory Disease, Female Genital Sores, and Endometriosis. Dr. Ruby is currently accepting new patients.

Christine Wu is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Wu is rated as an Experienced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Postmenopausal Osteoporosis, Endometrial Polyps, Melorheostosis, and Melorheostosis with Osteopoikilosis.

Caitlin Ingraham is an Obstetrics and Gynecologist in Philadelphia, Pennsylvania. Dr. Ingraham is rated as an Advanced provider by MediFind in the treatment of Endometriosis. Her top areas of expertise are Endometriosis, Vaginal Bleeding in Pregnancy, Vaginal Bleeding Between Periods, Uterine Fibroids, and Hysterectomy. Dr. Ingraham is currently accepting new patients.