Dr. Carmichael is chief medical officer and senior vice president at UCI Health. He also serves as professor and chief of the division of colon and rectal surgery at the UC Irvine School of Medicine. He is a linchpin in UCI Health’s transformation into a leading academic health system recognized for high-quality, safe care, including numerous Leapfrog “A” hospital grades for its flagship hospital. He leads a physician network across five hospitals and their associated ambulatory locations, and at UCI Health—Orange he leads a physician team with more physicians of excellence recognized by the Orange County Medical Association than any other hospital in the county. The UCI Health inpatient and ambulatory network ranked as a top performer in the 2025 Vizient quality and accountability study, making it one of only five health systems nationally to do so. He is also a colorectal surgeon known for innovative laparoscopic and robot-assisted approaches, as well as complex open abdominal surgery. He has authored or co-authored more than 100 peer-reviewed publications, and is currently the principal investigator on a phase 3 clinical trial of iltamiocel, a cellular treatment derived from a patient’s own muscle cells, for obstetric injury-related fecal incontinence. Since joining UCI Medical Center in 2010, he has held multiple leadership roles including residency program director, division chief, operating room director, and several cancer and value-analysis governance positions.
