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Emergency medicine faculty biographies


Sara dimeo

Role in Program: Program Director

Specialty: Emergency Medicine

Medical School: George Washington School of Medicine and Health Sciences, Washington, DC

Residency: University of Arizona-Tucson

Fellowship: University of California-Irvine, Multimedia Design Education Technology

Other Degrees: Masters in Health Professions' Education (MEHP), Johns Hopkins School of Education

Board Certifications: American Board of Emergency Medicine (ABEM)

Awards and Honors: Chief Resident (2016-2017), Emergency Medicine Residents' Association (EMRA) Presidential Leadership Award

Professional Affiliations: Fellow of the American College of Emergency Physicians (ACEP), Council of Residency Directors in Emergency Medicine

Sara dimeo

Role in Program: Program Director

Specialty: Emergency Medicine

Medical School: George Washington School of Medicine and Health Sciences, Washington, DC

Residency: University of Arizona-Tucson

Fellowship: University of California-Irvine, Multimedia Design Education Technology

Other Degrees: Masters in Health Professions' Education (MEHP), Johns Hopkins School of Education

Board Certifications: American Board of Emergency Medicine (ABEM)

Awards and Honors: Chief Resident (2016-2017), Emergency Medicine Residents' Association (EMRA) Presidential Leadership Award

Professional Affiliations: Fellow of the American College of Emergency Physicians (ACEP), Council of Residency Directors in Emergency Medicine


evan leibner

Role in Program: Core faculty, Patient Safety and Quality Improvement, Administration

Specialty: Emergency Medicine

Medical School: University of Health Sciences/The Chicago Medical School

Residency: Wayne State University/Detroit Receiving Hospital

Board Certifications: Emergency Medicine

Awards and Honors: Voluntary Faculty Teacher of the Year 1998, 1999

Professional Affiliations: Fellow of the American College of Emergency Physicians

evan leibner

Role in Program: Core faculty, Patient Safety and Quality Improvement, Administration

Specialty: Emergency Medicine

Medical School: University of Health Sciences/The Chicago Medical School

Residency: Wayne State University/Detroit Receiving Hospital

Board Certifications: Emergency Medicine

Awards and Honors: Voluntary Faculty Teacher of the Year 1998, 1999

Professional Affiliations: Fellow of the American College of Emergency Physicians


Andi Wolff

Role in Program: Associate Program Director, Ultrasound Director

Specialty: Emergency Medicine

Medical School: Indiana University School of Medicine

Residency: Indiana University Department of Emergency Medicine

Board Certifications: ABEM

Professional Affiliations: Fellow of the American Academy of Emergency Medicine, Fellow of the American College of Emergency Physicians

Andi Wolff

Role in Program: Associate Program Director, Ultrasound Director

Specialty: Emergency Medicine

Medical School: Indiana University School of Medicine

Residency: Indiana University Department of Emergency Medicine

Board Certifications: ABEM

Professional Affiliations: Fellow of the American Academy of Emergency Medicine, Fellow of the American College of Emergency Physicians


nick enriquez

Role in Program: Core faculty, Recruitment and Diversity, Equity, Inclusion and Belonging

Specialty: Emergency Medicine

Medical School: Drexel University School of Medicine

Residency: University of Arizona-Tucson

Board Certifications: ABEM

nick enriquez

Role in Program: Core faculty, Recruitment and Diversity, Equity, Inclusion and Belonging

Specialty: Emergency Medicine

Medical School: Drexel University School of Medicine

Residency: University of Arizona-Tucson

Board Certifications: ABEM


Josh Zeidler

Role in Program: Core faculty, EMS and Disaster Medicine

Specialty: Emergency Medicine, Pediatrics

Medical School: Des Moines University College of Osteopathic Medicine

Residency: Detroit Medical Center Wayne State University

Board Certifications: ABEM, American Board of Pediatrics, Emergency Medical Services (EMS)

Professional Affiliations: American College of Emergency Physicians, American Academy of Pediatrics, National Association of EMS Physicians

Josh Zeidler

Role in Program: Core faculty, EMS and Disaster Medicine

Specialty: Emergency Medicine, Pediatrics

Medical School: Des Moines University College of Osteopathic Medicine

Residency: Detroit Medical Center Wayne State University

Board Certifications: ABEM, American Board of Pediatrics, Emergency Medical Services (EMS)

Professional Affiliations: American College of Emergency Physicians, American Academy of Pediatrics, National Association of EMS Physicians


kaleena patel

Role in Program: Core faculty, Pediatric Emergency Medicine

Specialty: Pediatrics, Pediatric Emergency Medicine

Medical School: Keck School of Medicine of USC

Residency: UT Southwestern/Children's Health

Fellowship: Children's Hospital of Philadelphia

Other Degrees: Masters in Healthcare Quality and Safety (MHQS)

Board Certifications: Pediatrics, Board eligible for Pediatric Emergency Medicine

Awards and Honors: Chief Resident (2019-2020)

kaleena patel

Role in Program: Core faculty, Pediatric Emergency Medicine

Specialty: Pediatrics, Pediatric Emergency Medicine

Medical School: Keck School of Medicine of USC

Residency: UT Southwestern/Children's Health

Fellowship: Children's Hospital of Philadelphia

Other Degrees: Masters in Healthcare Quality and Safety (MHQS)

Board Certifications: Pediatrics, Board eligible for Pediatric Emergency Medicine

Awards and Honors: Chief Resident (2019-2020)


ryan adkins

Role in Program: Core faculty, Off Service Residents, Simulation

Specialty: Emergency Medicine

Medical School: Michigan State University School of Osteopathic Medicine

Residency: Ascension Macomb-Oakland Macomb, Michigan

Board Certifications: Board eligible for ABEM

Awards and Honors: Chief Resident (2019-2020)

Professional Affiliations: ACEP

ryan adkins

Role in Program: Core faculty, Off Service Residents, Simulation

Specialty: Emergency Medicine

Medical School: Michigan State University School of Osteopathic Medicine

Residency: Ascension Macomb-Oakland Macomb, Michigan

Board Certifications: Board eligible for ABEM

Awards and Honors: Chief Resident (2019-2020)

Professional Affiliations: ACEP


tanner folster

Role in Program: Core faculty, Clerkship Director

Specialty: Emergency Medicine

Medical School: Kirksville College of Osteopathic Medicine, Kirksville, MO

Residency: Lehigh Valley Health Network, Allentown, PA

Board Certifications: ABEM

Awards and Honors: Chief Resident (2016-2017), Resident of the Year 2017, Physician of the Month Mercy Gilbert Medical Center (March 2023)

Professional Affiliations: The Emergency Center

tanner folster

Role in Program: Core faculty, Clerkship Director

Specialty: Emergency Medicine

Medical School: Kirksville College of Osteopathic Medicine, Kirksville, MO

Residency: Lehigh Valley Health Network, Allentown, PA

Board Certifications: ABEM

Awards and Honors: Chief Resident (2016-2017), Resident of the Year 2017, Physician of the Month Mercy Gilbert Medical Center (March 2023)

Professional Affiliations: The Emergency Center


Melissa Kelsey

Role in Program: Core faculty, Wellness Director

Specialty: Emergency medicine

Medical School: Touro University Nevada College of Osteopathic Medicine

Residency: University of Arizona - Tucson

Board Certifications: ABEM

Awards and Honors: Critical Care Distinction Track 2017

Professional Affiliations: ACEP

Melissa Kelsey

Role in Program: Core faculty, Wellness Director

Specialty: Emergency medicine

Medical School: Touro University Nevada College of Osteopathic Medicine

Residency: University of Arizona - Tucson

Board Certifications: ABEM

Awards and Honors: Critical Care Distinction Track 2017

Professional Affiliations: ACEP


Erik Mattison

Role in Program: Medical Director, Chandler Regional Medical Center, Program Evaluation Committee (PEC) Chair

Specialty: Emergency Medicine

Medical School: Case Western Reserve University

Residency: Maricopa Medical Center, Phoenix

Board Certifications: American Board of Emergency Medicine, American College of Academic Addiction Medicine, Hyperbaric Medicine

Awards and Honors: Chief Resident, Richard A. Walsh Outstanding Resident Award, Outstanding Resident Award

Professional Affiliations: ACEP

Erik Mattison

Role in Program: Medical Director, Chandler Regional Medical Center, Program Evaluation Committee (PEC) Chair

Specialty: Emergency Medicine

Medical School: Case Western Reserve University

Residency: Maricopa Medical Center, Phoenix

Board Certifications: American Board of Emergency Medicine, American College of Academic Addiction Medicine, Hyperbaric Medicine

Awards and Honors: Chief Resident, Richard A. Walsh Outstanding Resident Award, Outstanding Resident Award

Professional Affiliations: ACEP


brian tiffany

Role in Program: Research Director

Specialty: Emergency Medicine

Medical School: Washington University of Medicine in St. Louis

Residency: Wayne State University/Detroit Receiving Hospital

Fellowship: Research, Wayne State University/Detroit Receiving Hospital

Other Degrees: PhD in Physiology

Board Certifications: American Board of Emergency Medicine, American College of Academic Addiction Medicine, Hyperbaric Medicine

Awards and Honors: Chief Resident, Richard A. Walsh Outstanding Resident Award, Outstanding Resident Award

Professional Affiliations: ACEP

brian tiffany

Role in Program: Research Director

Specialty: Emergency Medicine

Medical School: Washington University of Medicine in St. Louis

Residency: Wayne State University/Detroit Receiving Hospital

Fellowship: Research, Wayne State University/Detroit Receiving Hospital

Other Degrees: PhD in Physiology

Board Certifications: American Board of Emergency Medicine, American College of Academic Addiction Medicine, Hyperbaric Medicine

Awards and Honors: Chief Resident, Richard A. Walsh Outstanding Resident Award, Outstanding Resident Award

Professional Affiliations: ACEP