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Medical Staff Leadership

Each year members of the Medical Staff of Methodist Hospital are elected and/or appointed to specific medical staff leadership roles. Refer to the list below for this year’s officers, as well as the chairs and representatives for the various departments, sections, and committees.

​Officers of the Medical Staff

  • Sam Chia, MD, Chief of Staff
  • Marcel Pidoux, MD, Vice Chief of Staff
  • Elizabeth Lee, MD, Secretary/Treasurer
  • Asok Doraiswamy, MD, Immediate Past Chief of Staff

Departments

Emergency Medicine Department

  • Phong Ngo, MD, Chair

Medicine Department

  • Hugh Davis, MD, Chair
  • Atia Shah, MD, Vice Chair
  • Dana Tiganu, MD, Immediate Past Chair

Medicine Section/Specialty Chair/Representatives

  • Cardiology Jesus Vazquez, MD, Chair
  • Gastroenterology James Kao, MD, Chair
  • Critical Care Committee Rajiv Philip, MD, Co-Chair/Medicine Dept.
  • Radiology Jose Tandoc, MD, Department Representative

OB/Gyn/Peds Department

  • Anya Rose, MD, Department Chair (Ob/Gyn Section Chair)
  • Joseph Cuento, MD, Department Vice Chair (Pediatrics Section Chair)

Surgery Department

  • Steven Lin, MD, Chair
  • Christian Ochoa, MD, Vice Chair

Surgical Section Specialty Chair/Representatives

  • Anesthesia Marcel Pidoux, MD, Chair
  • ENT Ted Shen, MD, Chair
  • Critical Care Committee Jon Tyrell, MD, Co-Chair/Surgery Dept.
  • Gen/Vas. & Cardiothoracic Jon Tyrell, MD, Chair
  • Neurosurgery Gregory Withers, MD, Chair
  • Ophthalmology Elson Lai, MD, Chair
  • Oral Surgery W. Frederick Stephens, DDS, Chair
  • Orthopedic Pamela Luk, MD, Chair
  • Pathology Parakrama Chandrasoma, MD, Department Representative
  • Plastic Surgery Christopher Tiner, MD, Chair
  • Podiatry Welman Lim, DPM, Chair
  • Urology Alan Yamada, MD, Chair

Committees

  • Bioethics Alan Fisher, MD, Chair
  • Bylaws Stephen Soldo, MD, Chair
  • Cancer Henry Wang, MD, Chair
  • CPOE Standardization David Ratto, MD, Chair
  • CQIS Marcel Pidoux, MD, Chair (Vice Chief of Staff)
  • Credentials & IDP Jaime Henriquez, MD, Chair
  • Health Information & Technology David Ratto, MD, Chair
  • Infection Control Hua Jiang, MD, Chair
  • Institutional Review Board Henry Wang, MD (Representative)
  • Medical Education Jose Tandoc, MD, Chair
  • Nominating Asok Doraiswamy, MD, Chair (Immediate Past COS)
  • Peer Review Howard Romero, DO, Chair
  • Pharmacy & Therapeutics David Ratto, MD, Chair
  • Radiation Safety Leon Lis, MD, Chair
  • Utilization Management & T&T Review Scott Liang, MD, Chair
  • Well Being/Mentoring Jay Shah, MD, Chair
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