Emergency Medicine Experts
Our Board-certified Emergency Medicine (ER) expert witnesses are highly skilled in evaluating, diagnosing, and treating adult and pediatric patients with acute medical and surgical illnesses and injuries. Our experts bring extensive experience and outstanding credentials to support your legal proceedings.
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Airway Management
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Aortic Dissection
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Appendicitis
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Cardiac Arrest
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Ectopic Pregnancy
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Emergency Medicine
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Epidural Abscess
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Heart Attack
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Myocardial Infarction
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Pneumonia
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Pulmonary Embolism
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Sepsis
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Stroke
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Testicular Torsion
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Trauma
Areas of Expertise
Our emergency medicine experts cover a broad range of cases, including:
Featured Experts
Jared R. Greenholz, MD
Board Certified in Emergency Medicine
22 years in practice
Dr. Jared Greenholz, MD is an Emergency Medicine Specialist, who primarily practices in Oakland, CA. Dr. Greenholz has been practicing for over 22 years and is board certified by the American Board of Emergency Medicine and the American Board of Emergency Medicine. Dr. Greenholz graduated from New York Medical College and is currently affiliated with Highland Hospital.
Specialty Focus: Emergency Medicine
Education:
Residency: Emergency Medicine Alameda County Medical Center & Highland General Hospital; Oakland, CA
MD: New York Medical College, Valhalla, NY
Ariel Cohen, D.O.
Board Certified in Pediatric Emergency Medicine and Emergency Medicine
10 years in practice
Dr. Cohen is dual board-certified in Pediatric Emergency Medicine and Emergency Medicine. She has over 10 years of clinical experience and has worked in most emergency department settings including Academic/Level 1 trauma centers, community hospitals, rural critical access hospitals, and hybrid settings. She also has 4 years of administrative experience. A few highlights from my CV include experience as interim Director of Pediatric Emergency Medicine, Quality Director, peer reviewer for a private company, peer review committee member at an academic center, and pediatric child abuse liaison at an academic center. In addition to chart reviews, she is an experienced writer who has authored a book chapter, case studies, and research articles.
Specialty Focus: Pediatric Emergency Medicine
Education:
Johns Hopkins School of Medicine – Johns Hopkins Hospital, Baltimore, MD
Clinical Fellow in Pediatric Emergency Medicine (2015-2017)
Case Western Reserve University – MetroHealth Medical Center / Cleveland Clinic, Cleveland, OH
Resident in Emergency Medicine (2012-2015)
Western University of Health Sciences – Pomona, CA
Doctor of Osteopathy (2012)
Neve Yerushalayim
Jewish Studies in program Mechina (2007 - 2008)
Brown University – Providence, RI
A.B. Biology and A.B. Philosophy (2007)
Hernando Garzon, MD
Board Certified in Emergency Medicine
25 years in practice
Hernando Garzon, MD is an Emergency Medicine physician practicing in California since 1992. In addition to his clinical practice Dr. Garzon has extensive experience in Quality Improvement, Health Information Exchange (HIE), health system management and strengthening, disaster response, global Health, and Emergency Medical Services. Dr. Garzon has held multiple leadership roles in health care, including Director of Emergency Management for Northern California Kaiser Permanente, Medical Director for Sacramento County’s Emergency Medical Services (EMS), and currently serves as the Chief Medical Officer of the California EMS Authority.
Specialty Focus: Emergency Medicine
Education:
New York University School of Medicine - MD (1988)
Emergency Medicine Residency - Long Island Jewish Medical Center (1989-1992)
Internal Medicine Internship - St. Luke’s-Roosevelt Medical Center (1988-1989)
Eric Van Moorlehem, MD, FACEP
Board Certified in Emergency Medicine
24 years in practice
Eric Van Moorlehem, M.D., is a Physician Executive with 24 years of clinical experience in Emergency Medicine and extensive executive leadership. Most recently, he served as Executive Vice President and Regional Chief Clinical Officer at Envision Healthcare, overseeing $500M in revenues, 110 clinical practices, 2,500 clinicians, and 2.5 million annual patient visits across 11 states. His work included partnerships with major health systems like UHS, Tenet, Adventist Health, and Trinity Health. Dr. Van Moorlehem has significant expertise in M&A, business development, managed care negotiations, and regulatory compliance, having guided clients through CMS, JCAHO, and state board requirements.
Dr. Van Moorlehem’s innovations include founding Stat Doctors Arizona LLC, a telehealth startup acquired by Teladoc in 2015. He has also contributed to ACOs, CINs, and CMS value-based initiatives, such as BPCI and ET3 Models. A graduate of the University of Utah School of Medicine and the University of Arizona Emergency Medicine Residency, where he was Chief Resident, he has held various leadership roles, including department chair, regional medical director, and health system director, with a focus on driving quality care and operational excellence.
Specialty Focus: Emergency Medicine
Education:
Bachelor of Science - University of Utah, Salt Lake City, UT
Doctor of Medicine (MD) - University of Utah Medical School, Salt Lake City, UT
Transitional Internship - LDS Hospital, Salt Lake City, UT
Emergency Medicine Residency (Chief Resident) - University of Arizona Medical Center, Tucson, AZ
MIT Sloan School of Management - Executive Program: Leading Operational Excellence