Department of Psychiatry

Penn Behavioral Health

About Our Team

C. Neill Epperson, MD

C. Neill Epperson, MD
Director of the Penn Center for Women's Behavioral Wellness Professor (with Tenure) of Psychiatry and Obstetrics/Gynecology

Dr. Epperson was recruited to the Perelman School of Medicine at the University of Pennsylvania from Yale University School of Medicine in the Fall of 2009 to initiate and direct the Center's on-going activities. Dr. Epperson, who holds dual appointments in the Departments of Psychiatry and Obstetrics/Gynecology, is internationally renowned for her research in women's mental health, specifically with respect to the pathophysiologyand treatment of premenstrual dysphoric disorder and perinatal depression. Dr. Epperson was one of 30 University of Pennsylvania physicians recognized as "2011-2012 Best Doctors in America," selected by a consensus of her peers. Dr. Epperson has received numerous grants from private foundations, pharmaceutical companies and the National Institutes of Health, including the National Institute on Aging, National Institute of Mental Health and the National Institute on Drug Abuse. Most recently, Dr. Epperson has been awarded funding from the National Institute on Aging for her research regarding the effects of estrogen and serotonin on cognition in menopausal women. The quality of Dr. Epperson's research has been recognized as outstanding by her peers as evidenced by her extensive grant funding and research publications in top-tier scientific journals. Dr. Epperson is a frequent lecturer on topics in women's behavioral health and is available to speak at select public engagements.

Click here to watch a video about Dr. Epperson's menopause research studies


Liisa Hantsoo, PhD

Liisa Hantsoo, PhD
Clinical Psychologist Post-Doctoral Research Fellow

Dr. Hantsoo is a clinical psychologist with clinical and research background in stress biology. She completed her undergraduate degree in Neuroscience at the Johns Hopkins University, doctorate in Clinical Psychology at the Ohio State University, and Health Psychology internship at Rush University Medical Center in Chicago, where she subspecialized in Women’s Health. Dr. Hantsoo is trained in cognitive-behavioral therapy and mindfulness based stress reduction, and is available to see patients at 3535 Market Street in University City. Dr. Hantsoo's research focuses on stress, with special emphasis on stress response in the context of the menstrual cycle and PMS/PMDD. Click here for more information about Dr. Hantsoo's research. She also serves as Editor in Chief of the University of Pennsylvania's Biomedical Postdoctoral Newsletter.

For more information about the newsletter, please click here.


Sarah Mathews, MD, NCMP

Sarah Mathews, MD, NCMP
Staff Psychiatrist

Dr. Mathews is an Assistant Professor of Psychiatry in the Department of Psychiatry at the Perelman School of Medicine at the University of Pennsylvania. She has advanced training in geriatric psychiatry. Dr. Mathews also has a particular interest in issues related to the behavioral health of aging and aged women, including the management of cognitive disorders, depression, and anxiety. Dr. Mathews has experience working with women throughout the reproductive lifecycle, including treating psychiatric illness during pregnancy and the postpartum period through the post-menopausal period. She provides clinical services at both 3535 Market Street in University City and in Center City Philadelphia at Penn Medicine Washington Square.

Dr. Mathews successfully met the criteria and passed the examination necessary to become a North American Menopause Society (NAMS) Certified Menopause Practitioner (NCMP). Founded in 1989, NAMS is North America's leading nonprofit organization dedicated to improving health and quality of life through an understanding of menopause. Those who hold the NCMP certification have demonstrated special interest and competency in the field of menopause. These include physicians, physician assistants, nurse practitioners, nurse midwives, nurses, pharmacists, among others. Dr. Mathews also received the 2013 Albert Stunkard Faculty Recognition Award.  This award is given annually to four faculty members who are outstanding teachers and mentors.  The graduating resident class selects award winners who have significantly influenced their education and training.


Lindsay Sortor, PsyD

Lindsay Sortor, PsyD
Clinical Psychologist

Dr. Sortor is a clinical psychologist with expertise in reproductive and perinatal issues as well as psycho-oncology. Her specific areas of interest include infertility, perinatal mood disorders, parental adjustment, and NICU support.  Dr. Sortor also offers support to women at various stages of cancer diagnosis and treatment, and is available to see patients at 3535 Market Street in University City.



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