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ChristianaCare experts are available to provide analysis and commentary on a wide variety of important topics. Use the search bar or browsing options below to narrow down your search. All expert profiles contain a contact button to connect. All inquiries are monitored by our media relations team to ensure a prompt response.

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Joan Pirrung, MSN, APRN, ACNS-BC

Joan Pirrung, MSN, APRN, ACNS-BC

Interim President of Union Hospital

Joan Pirrung is the interim president at ChristianaCare’s Union Hospital.

Acute Inpatient Surgical and Trauma ServicesTrauma Service LeadershipTrauma NursingTrauma CareAdult Health
John R. Pollard, M.D.

John R. Pollard, M.D.

Director, ChristianaCare Epilepsy Center

Dr. Pollard is an expert in treatment of drug resistant epilepsy in adults.

Epilepsy Clinical TrialsDrug Resistant EpilepsyEpilepsy Biomarkers
Shauna Vogl Porter, PharmD

Shauna Vogl Porter, PharmD

Director for Inpatient Pharmacy at Christiana Hospital

Shauna Vogl Porter, PharmD, is the director for inpatient pharmacy at ChristianaCare's Christiana Hospital.

Pharmacy
John Powell, M.D., FACEP, MHCDS

John Powell, M.D., FACEP, MHCDS

Chairman of the Department of Emergency Medicine

Dr. Powell is an expert in ED operations, risk management, and emergency bedside ultrasound. He has prior experience with undersea medicine.

Risk ManagementEmergency Point-of-Care UltrasoundEmergency and Disaster MedicineMedicineRadiation Health
Dave Repshas, MHA

Dave Repshas, MHA

Director of Business Solutions

Dave Repshas, MHA, is the director of ChristianaCare Business Health Solutions.

Client ManagementHealth Care Sales
Claudia Angelica Reyes-Hull, M.Arch., CMI, CHI

Claudia Angelica Reyes-Hull, M.Arch., CMI, CHI

Manager of Cultural and Linguistic Programs

Claudia Angelica Reyes-Hull is the manager of Operations, Cultural Competence and Language Services at ChristianaCare.

Community RelationsInterpretation and TranslationMultilingual CommunicationsEducation Management
Carlos Reyes, M.D.

Carlos Reyes, M.D.

Primary Care Physician at ChristianaCare Su Centro de Salud

Dr. Carlos Reyes is a primary care physician at ChristianaCare Primary Care Su Centro de Salud.

Internal Medicine
Pamela Ridgeway, MBA, MA, SPHR

Pamela Ridgeway, MBA, MA, SPHR

Chief Diversity Officer

Pamela Ridgeway is the chief diversity officer and the vice president of Talent & Acquisition at ChristianaCare.

Human ResourcesTalent AcquisitionOperational Leadership
Carol Ritter

Carol Ritter

Nurse Manager

Carol Ritter leads the nurses at arguably the nation’s preeminent intensive care unit.

Nursing
Natalia Rivera-Torres, Ph.D

Natalia Rivera-Torres, Ph.D

Research Scientist

Natalia Rivera-Torres is a research scientist who is credited with elucidating the mechanism of homology directed repair in human cells.

Homology Directed Repair in Human CellsEXcision And Corrective Therapy (ExACT)Single-Strand Template Repair (SSTR)Predicting Gene Editing OutcomesGene Repair