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

Valerie Cohen, D.O.

Associate Program Director, Combined Emergency Medicine/Family Medicine Residency

Valerie Cohen, DO is board certified in both Emergency Medicine and Family Medicine.

A Delaware native and DIMER program graduate, Dr. Cohen earned her undergraduate degree in Health Sciences at James Madison University in 2003 where she played Division 1 field hockey. She then went on to complete a masters in Biomedical Sciences in 2006 and her medical degree in 2011 at the Philadelphia College of Osteopathic Medicine where she was also an undergraduate fellow in Osteopathic Manipulative Medicine. She completed her 5-year combined Emergency Medicine/Family Medicine (EMFM) residency at Christiana in 2016 where she served as both EM and EMFM chief resident.

Dr. Cohen is clinical instructor and educator of Emergency Medicine and Family Medicine at both Sidney Kimmel Medical College of Thomas Jefferson University and the Philadelphia College of Osteopathic Medicine.

In addition to working full-time clinically in the emergency department and precepting residents in the family medicine office, she serves as core faculty and Associate Program Director of the EMFM residency program.

Specialties: Emergency Medicine; Family Medicine
Education: Philadelphia College of Osteopathic Medicine
Residency: ChristianaCare Family Medicine Residency, Class of 2011