Weidun Alan Guo

Weidun Alan Guo

Weidun Alan Guo MD, PhD, FACS

UBMD Surgery


Pathophysiology; Surgery; Surgery - Laparoscopic; Surgery - Trauma; Surgical Critical Care - Surgery


Professional Summary:

I am an acute care surgeon board-certified in both surgery and surgical critical care. The most important part of my job is providing compassionate care to my patients, who are often acutely injured and/or critically ill. I have a deep awareness of, and empathy for my patients’ suffering, and I do my best to alleviate it. My clinical focus is in trauma, critical care and emergency general surgery. I also perform laparoscopic surgery, gastrointestinal surgery (small bowel, colorectal and biliary), complex hernia surgery, as well as endoscopy and wound care.

My research is focused on improving care for injured and critically ill patients, including topics in gut-origin bacterial translocation, aspiration and acute respiratory distress syndrome (ARDS), damage control resuscitation and imaging in trauma. I was a co-investigator on NIH-funded grants for evaluation of aspiration biomarkers in trauma and surgery, as well as on an SIS multicenter study on duration of antibiotics for abdominal infection. I encourage medical students and residents to approach me for collaborative research opportunities. The research experience will enable them to develop critical thinking and help shape their practice of medicine. I have mentored numerous surgical residents and medical students in research, which has led to them receiving national research awards.

I have a passion for teaching medical students and residents. I find satisfaction in sharing my knowledge and experience with those in the training phase of their careers. In return, their questions help me stay current in my field and ultimately help me render the best care to my patients. I am the course director of the elective internship in trauma. I also give lectures on traumatology to medical students. As a surgeon, role model and educator, I have inspired many medical students to pursue surgery as a career.


Pathophysiology, Surgery, Surgery - Laparoscopic, Surgery - Trauma, Surgical Critical Care - Surgery

Physician Gender:



UBMD Surgery
Erie County Medical Center
Department of Surgery
462 Grider Street
DK Miller Building, Third Floor
Buffalo, NY 14215
Office Hours: 8:30-4:30
Phone: (716) 898-5186
Fax: (716) 898-3194
Contact: Rosemary Boerschig

Hospital Locations (for inpatients only):

  • Kaleida Health - Millard Fillmore Suburban

Insurance Accepted:

  • Aetna U.S. Healthcare
  • Blue Cross & Blue Shield of WNY Inc
  • CIGNA HealthCare
  • Community Blue (HMO)
  • Community Blue Advantage
  • Empire
  • Fidelis
  • GHI
  • Independent Health Association (HMO)
  • Magnacare
  • Medicaid
  • Medicare
  • Nofault
  • North American Administrators
  • Nova
  • NYS Medicaid
  • Preferred Care
  • Railroad Medicare
  • Tricare
  • TriCare/Champus
  • United Healthcare
  • Univera Health Care (HMO)
  • Veterans Administration
  • Workers Comp

Board Certifications:

  • Diplomate, American Board of Surgery, General Surgery
  • Diplomate, American Board of Surgery, Surgical Critical Care

Education and Training:

  • Residency, The Cleveland Clinic Heath System (2006)
  • Fellowship, The Ohio State University, Trauma/Surgical Critical Care (2004)
  • Residency, UMDNJ-New Jersey Medical School (2003)
  • Fellowship, University of Texas Southwestern Medical Center, Laparoscopic Research (1999)
  • Postdoctoral Fellow, UMDNJ-New Jersey Medical School (1997)
  • Postdoctoral Fellow, Louisiana State University Medical Center (1997)
  • PhD, Lund University (1994)
  • MD, Shantou University Medical College (1984)

Research Profile:

This UBMD clinician teaches at the University at Buffalo's School of Medicine and Biomedical Sciences. Learn more about this clinician’s research and teaching activities. View credentials, publications, professional involvement and more.