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Medical Staff Administration

For physicians and allied health professionals wishing to apply for Medical Staff or Allied Health Professional Membership, please click here to access MD App and request an account. You will be notified by email regarding your password and instructions to complete the on-line application. If you have any questions, please call the Medical Staff Office at 909-580-3342. Thank you.

Medical Staff Leadership

Mark Comunale
Sam Hessami, M.D.
Chief Medical Officer

Mark Comunale
Reza Sadeghian, M.D.
Chief Medical Information Officer

Mark Comunale
Dotun Ogunyemi, M.D.
Designated Institutional Official

David Lanum
David Lanum, M.D.
Ambulatory Services

Kambiz RaoufiKambiz Raoufi, M.D.
Medicine Services

Mark Comunale
Mark Comunale, M.D.
Operative Services/Patient Safety Officer

Dev Gnanadev
Dev GnanaDev, M.D.
Surgery

Guillermo Valenzuela
Guillermo
Valenzuela, M.D.

Surgical Services

Medical Staff Officers

Webster Wong
Webster Wong, M.D.
President

Kambiz Raoufi
Kambiz Raoufi, M.D.
Vice-President

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Hyung-Suk Lee, M.D.
Secretary-Treasurer

Rodney Borger
Rodney Borger, M.D.
Immediate Past President

Application Link

Medical Staff Chairs

Mark Comunale
Mark Comunale, M.D.
Anesthesia
Chair

Keith Gordon
David Seigler, M.D.
Behavioral Health
Chair

Rodney Rogers
Rodney Borger, M.D.
Emergency Medicine
Chair

David Lanum
David Lanum, M.D.
Family Medicine
Chair

Kambiz RaoufiKambiz Raoufi, M.D.
Internal Medicine
Chair

Thuan Dang
Thuan Dang, M.D.
Medical Imaging
Chair

James Matiko
James Matiko, M.D.
Orthopedics
Chair

Carolyn LeachCarolyn Leach, M.D.
Laboratory Medicine
Chair

Dev Gnanadev
Dev GnanaDev, M.D.
Surgery
Chair

Guillermo Valenzuela
Guillermo
Valenzuela, M.D.

Women's Health
Chair

Webster Wong
Webster Wong, M.D.
Pediatrics
Chair