Leadership Team

Leadership Team

Robert Stone, chief executive officer, and the talented individuals below are leading City of Hope toward the next horizon of treatments and cures for life-threatening diseases.

Robert W. Stone
Robert Stone
Chief Executive Officer, Helen and Morgan Chu Chief Executive Officer Distinguished Chair

Robert Stone is an award-winning chief executive officer at the helm of City of Hope’s rapid evolution into a world leader in cancer research, treatment and prevention. Under his strategic and visionary direction, City of Hope is accelerating opportunities for high-impact discovery and access to the

Kristin Bertell
Kristin Bertell
Chief Philanthropy Officer

Kristin Bertell is the chief philanthropy officer at City of Hope, a Charity Navigator four-star-rated organization, who provides strategic leadership for all of its philanthropic efforts, executing a diverse portfolio of fundraising programs and activities.

Michael Caligiuri, M.D.
President, City of Hope National Medical Center
Duarte - Main Campus

Michael A. Caligiuri, M.D., president of City of Hope National Medical Center, is a world-renowned physician, scientist, builder, innovator, leader and visionary. He is dedicated to developing the next generation of leading-edge cancer therapies.

 John D. Carpten, Ph.D.
John D. Carpten, Ph.D.
Chief Scientific Officer; Irell & Manella Cancer Center Director's Distinguished Chair; Morgan & Helen Chu Director's Chair of the Beckman Research Institute
Duarte - Main Campus

John D. Carpten, Ph.D., is uniquely positioned to help further City of Hope’s critical goal of democratizing cancer care and expanding access to leading-edge research and care for more patients, families and communities.

Ken Chaplin, System Chief Marketing Officer, City of Hope
Ken Chaplin
System Chief Marketing Officer

Ken Chaplin serves as system chief marketing officer for City of Hope, where he provides overall strategic leadership for City of Hope’s integrated marketing efforts. Chaplin joined City of Hope as part of its acquisition of Cancer Treatment Centers of America, where he previously served as CMO.

Jo Ann Escasa-Haigh
Jo Ann Escasa-Haigh
System Chief Business Officer

Jo Ann Escasa-Haigh, system chief business officer, oversees system strategy, mergers and acquisitions, finance and managed care.

Debra Fields Bio
Debra Fields
Executive Vice President and Chief Transformation Officer

Debra Fields, executive vice president and chief transformation officer, leads the teams focused on accelerating City of Hope’s impact through aligned organizational governance and design, progressive talent strategy, change navigation and integration methodology, and marketing and communications

Pete Govorchin
Pete Govorchin, M.B.A.
President, City of Hope Chicago

Pete Govorchin, M.B.A., is president, City of Hope Chicago. In his role, Govorchin leads all hospital operations at City of Hope Chicago with a focus on driving service-line growth through operational and clinical excellence.

David Horne Bio
David Horne, Ph.D.
Vice Provost and Deputy Director, Beckman Research Institute of City of Hope; Dr. & Mrs. Allen Y. Chao Chair in Developmental Cancer Therapeutics
Duarte - Main Campus

David Horne, Ph.D., vice provost and deputy director of Beckman Institute of the City of Hope and dean of Faculty Affairs, helps shape the scientific and educational vision of City of Hope with his research expertise in Medicinal Chemistry, Drug Development, and Molecular Medicine

Mark Hulse
Mark Hulse
Chief Digital Officer

Mark Hulse, chief digital officer at City of Hope, is responsible for fostering a digital transformation culture and leading digital solution development across the organization.

Vince Jensen
Vince Jensen
Chief Clinical Operating Officer; Chief Executive, City of Hope Medical Foundation

Vince Jensen, M.B.A., serves City of Hope as chief clinical operating officer, where he leads City of Hope's expansive clinical services on campus and within its clinical network. He also serves as chief executive for City of Hope Medical Foundation, City of Hope’s faculty practice plan and

Harlan levine
Harlan Levine, M.D.
President, Health Innovation and Policy

Harlan Levine, M.D., is president of health innovation and policy.  He also serves as the chair of the board of AccessHope™, a spinout company from City of Hope that is focused on serving the employer market and making leading-edge cancer care available to all regardless of geographical location.

Kevin Manemann
Kevin Manemann
Executive Vice President and Chief Integration Officer, Clinical Enterprise

Kevin Manemann is executive vice president and chief integration officer, Clinical Enterprise, for City of Hope.

Gulden Mesara
Gulden Mesara, M.B.A., M.S.
Chief Communications, Culture and Experience Officer

Gulden Mesara, M.B.A., M.S., is the chief communications, culture and experience officer at City of Hope. 

Cristin O'Callahan
Cristin O'Callahan
General Counsel and Corporate Secretary

Cristin O’Callahan is City of Hope’s General Counsel and Corporate Secretary, overseeing the departments responsible for legal matters, risk mitigation and ethics and compliance as well as serving as corporate secretary.

Steven T. Rosen, M.D.
Medical Oncologist and Hematologist
Duarte - Main Campus

Steven T. Rosen, M.D., is a professor, Division of Lymphoma, Department of Hematology & Hematopoietic Cell Transplantation, and executive vice president and director emeritus, Comprehensive Cancer Center and Beckman Research Institute of City of Hope.

Angela L. Talton
Angela L. Talton
Senior Vice President and Chief Diversity, Equity and Inclusion Officer
Duarte - Main Campus

Angela L. Talton leads the development of a new vision and strategy to advance diversity, equity and inclusion at City of Hope, continuing its holistic and integrated focus to build a diverse and inclusive culture at all levels of the enterprise.

Joline Treanor, System Chief Human Resources Officer, City of Hope
Joline Treanor
System Chief Human Resources Officer

Joline Treanor is system chief human resources officer at City of Hope, where she is focused on creating an engaging workplace while ensuring that City of Hope has key strategies in place to accelerate a culture of performance excellence and continuous improvement.

Jeffrey Trent
Jeffrey Trent, Ph.D.
TGen President and Research Director

Jeffrey M. Trent, Ph.D., is the president and research director of Translational Genomics Research Institute (TGen), which joined forces with City of Hope to accelerate the speed at which scientists and medical staff convert research discoveries into cures for patients.

Vijay Trisal, M.D.
Surgical Oncologist; Chief Medical Officer
Duarte - Main Campus

Vijay Trisal, M.D., the Dr. Norman & Melinda Payson Professor in Medicine and chief medical officer at City of Hope, is an advocate for individualized patient care and expanding access to City of Hope’s advanced therapies and specialized physicians across local communities.

Kevin Tulipana, D.O., M.S.
President, City of Hope Phoenix

Kevin Tulipana, D.O., M.S., a hospitalist and president, City of Hope Phoenix, is dedicated to providing compassionate, patient-centered care. An ordained deacon with the Catholic church, Dr. Tulipana is finely tuned to both the physical and spiritual needs of his patients.

Annette Walker, M.H.A.
President, City of Hope of Orange County

Annette Walker, president of City of Hope, Orange County, drives the development and growth of a 21st-century comprehensive cancer campus in Irvine and a network of care that will provide Orange County residents unprecedented access to leading-edge medicine.

Jonathan Watkins
Jonathan Watkins, M.P.A.
President, City of Hope Atlanta

Jonathan Watkins, M.P.A., joined City of Hope in October 2019. In his role as president, City of Hope Atlanta, Watkins provides strategic guidance for City of Hope Atlanta while working closely with leadership across City of Hope.