All visitors are required to wear masks.

For COVID-19 safety, all visitors to ChristianaCare facilities and services are required to wear masks. This includes visitors who are vaccinated. Please read our visitor guidelines before arrival.

Masks required at outpatient locations; visitors and support persons limited

All visitors at outpatient locations must be masked in alignment with the masking guidelines on our visitation policy page here. Patients at ChristianaCare’s outpatient services are advised to come to their appointments alone unless a support person is absolutely needed. If a support person is needed, such as a parent, guardian or spokesperson, we highly encourage that the support person be vaccinated. Outpatient practices are not requiring vaccination or a negative COVID test for visitors at this time.

All hospital visitors required to be vaccinated or have a negative COVID-19 test.

  • Inpatients in our Christiana, Wilmington and Union hospitals may have one visitor daily between 10 a.m. and 8 p.m. The visitor must be 16 or older.
  • Patients having outpatient surgery may have one support person accompany them. Support persons must be 16 or older.
  • All visitors and surgical support people must show proof of vaccination OR a negative COVID-19 test within the prior 72 hours.

Before visiting, click here for more details about visitation.

Visit or for local vaccination and testing sites.

Physicians & Staff

Heather Bittner Fagan, M.D., MPH, FAAFP

Associate Vice Chair of Research and Faculty, Department of Family and Community Medicine

Heather Bittner Fagan, M.D., MPH, FAAFP, is a practicing physician, faculty member and researcher in Family & Community Medicine at ChristianaCare. Since 2011, Dr. Fagan has been an associate professor at Thomas Jefferson University in Philadelphia and has made regional and national contributions to research on cancer screenings in primary care and underserved populations. Dr. Fagan is a recipient of the American Cancer Society’s Cancer Control Career Development Award, which recognizes and develops national leaders in cancer control and prevention. She is the lead for the community engagement and outreach component of the ACCEL program, a multi-site grant supporting clinical and translational research to address some of Delaware’s most pressing health needs. Funding for the ACCEL program comes from NIH grant U54-GM104941 with additional generous support from the State of Delaware, the University of Delaware, ChristianaCare, A.I.DuPont/Nemours, and the Medical University of South Carolina.

Dr. Fagan earned her medical degree from MCP Hahnemann University and completed her residency at Thomas Jefferson University Hospital in 2002. She completed her primary care research fellowship at Jefferson Medical College in 2003 and has been active in health research since then. In 2007, she completed a distance fellowship for the Grant-Generating Project of the American Academy of Family Physicians Foundation. Dr. Fagan completed a master’s degree in public health at Jefferson Medical College in 2011.

Dr. Fagan has published in Cancer, Cancer Epidemiology, Biomarkers and Prevention, Medical Care, Journal of the American Board of Family Medicine, Journal of Obesity, and other journals. Dr. Fagan has had funding for her work from the National Cancer Institute, the Patient-Centered Outcomes Research Institute, the National Institute of General Medical Science as well as state and foundation grants.

Dr. Fagan is highly involved in teaching and training family medicine residents as well as fellows, advanced practice nurses and medical students. She maintains an active clinical practice at Claymont Family Medicine on Philadelphia Pike and is interested in the care of cancer survivors and vulnerable populations.

Dr. Fagan serves on the institutional review board for ChristianaCare and University of Delaware. She is a fellow of the American Academy of Family Physicians and a member of professional organizations including the Society of Teachers of Family Medicine, North American Primary Care Research Group, American Cancer Society, Delaware Academy of Family Physicians and the Medical Society of Delaware. She is an invited member of the Delaware Health Care Consortium and chairs the Early Detection and Prevention Committee.

Specialties: Family Medicine
Education: MCP Hahnemann University
Residency: Thomas Jefferson University Hospital, Class of 2002
Fellowship: Primary Care Research Fellowship, Sidney Kimmel Medical College at Thomas Jefferson University, Class of 2003