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Core Academic Faculty

Jennifer Oakes, MD
Program Director
Residency: Beth Israel Deaconess Medical Center, Harvard Affiliated
Fellowship: Medical Toxicology - Emory University School of Medicine / CDC Georgia Poison Center   
Professional Interests: Critical and acute care toxicology, complementary and herbal medications and their toxicology, medical education
Hobbies: Knitting, spinning

Brett D. Cherrington, MD
Associate Program Director
Medical School: SUNY Upstate Medical University
Residency: Upstate University Hospital, Syracuse NY
Fellowship Medical Toxicology at Upstate University Hospital
Professional Interests: Toxicology, medical Education
Hobbies: Outdoors, sports, music, church, family

Maxwell Jen, MD
Medical School: UC San Francisco
Residency: UC Irvine
Fellowship: Medical Informatics, UC Irvine



Matthew Kiefer, MD
Director of Simulation
Medical School: University of Pennsylvania School of Medicine
Residency: Highland Hospital, Oakland, CA
Fellowship: Medical Simulation, UC Davis
Professional Interests: Simulation, medical education, ultrasound
Hobbies: Sailing/kayaking/canoeing, playing music, spending time with my family

Maria O’Rourke, MD
GME US Director and Clinical ED US Director 
Medical School: Tufts School of Medicine 
Residency: Mount Sinai School of Medicine/Elmhurst Hospital Center NYC
Fellowship: Emergency Ultrasound Fellowship, Mount Sinai  
Professional Interests: TEE in the Cardiac Arrest Patient in ED 
Hobbies: Gourmet cooking, marathon racing, gardening 

Katherine Shafer, MD
EMS Medical Director
Medical School: Tufts University School of Medicine
Residency: Yale-New Haven Hospital
Professional Interests: EMS, pediatrics, critical care
Hobbies: Traveling, kayaking, riding horses, and cooking

Benjamin Wiederhold, MD
Chair, St. Joseph's Emergency Department
Medical School: University of California San Francisco
Residency:  Highland Hospital, Oakland, CA
Professional Interests: Quality improvement, ED operations, ultrasound, resuscitation medicine, medical education
Hobbies: Wake surfing, really any kind of surfing, high adventure hiking, family and coaching kids sports teams, travel