Anesthesiology Team

Our team consists of experienced anesthesiologists certified by the American Board of Anesthesiology. All of our anesthesiologists are doctors of medicine who have completed four years of medical school and an additional four years of residency training in anesthesiology. We have vast experience and exposure to oncologic anesthesia, which ensures that you are provided with the best anesthetic care possible.

Gian Nnhan
Duarte - Main Campus

Gian Nhan, M.D., areas of expertise include acute pain management — including methods for blocking nerve signals from entire regions of the body — as well as anesthetic techniques for vascular, cardiothoracic, pediatric, obstetric, and orthopedic surgeries.

Chanwang (Channing) Park, M.D.
Lennar Foundation Cancer Center

Chanwang (Channing) Park, M.D., unique professional expertise lies in both data-driven science and compassionate concern for patients who are anxious about their cancer treatments.

Doctor John Raytis headshot
John Raytis, M.D.
Anesthesiologist
Duarte - Main Campus

John Raytis, M.D., is an anesthesiologist and associate clinical professor in the Department of Anesthesiology.

Michael Sullivan Profile
Duarte - Main Campus

Michael Sullivan, M.D., is associate clinical professor and chair of the Department of Anesthesiology at City of Hope in Southern California.

Steven S. Tu, M.D.
Steven S. Tu, M.D.
Anesthesiologist
Lennar Foundation Cancer Center; Duarte - Main Campus

Steven Tu, M.D., anesthesiologist and associate clinical professor, Department of Anesthesiology.

Dr. Qi Yang profile photo
Qi Yang, D.O.
Assistant Clinical Professor
Duarte - Main Campus

The approach to care of Qi Yang, D.O., is to treat patients as though they are her own family members and work with each one to develop a plan that meets their individual needs.