Medical Oncology & Therapeutics Research Faculty

City of Hope's Department of Medical Oncology & Therapeutics Research multidisciplinary team is comprised of world-renowned medical oncologists, researchers, nurse practitioners and other health professionals.

Duarte Team

Stephen J. Forman, M.D.
Hematologist-Oncologist
Duarte - Main Campus

Stephen J. Forman, M.D., hematologist-oncologist, is a top cancer doctor for leukemia, lymphoma & bone marrow transplantation. He is also the director of the Hematologic Malignancies Research Institute & director of the T Cell Therapeutics Research Laboratory at City of Hope, Duarte, California.

Stacy Gray
Stacy W. Gray, M.D., A.M.
Deputy Director, Center for Precision Medicine; Physician
Duarte - Main Campus; Lennar Foundation Cancer Center

Stacy W. Gray, M.D., is deputy director of the Center for Precision Medicine and professor and chief of the Division of Clinical Cancer Genomics within the Department of Medical Oncology & Therapeutics Research, and a secondary appointment in the Department of Population Sciences.

Stephen Gruber
Stephen Gruber, M.D., Ph.D., M.P.H.
Vice President, City of Hope National Medical Center; Medical Oncologist
Duarte - Main Campus

A world-renowned cancer geneticist, Stephen Gruber, M.D., Ph.D., M.P.H., focuses his research on precision medicine and the genomics of cancer in order to improve treatment and care for cancer patients and their families.

Heather Hampel, Associate Director, Division of Clinical Cancer Genomics
Duarte - Main Campus

Heather Hampel, M.S., CGC, is a clinical professor and associate director, Division of Clinical Cancer Genomics, Department of Medical Oncology.

Nikhila_Kethireddy
Nikhila Kethireddy, M.D.
Medical Oncologist
Duarte - Main Campus

Breast cancer specialist Nikhila Kethireddy, M.D., sought a career in medicine because of her fundamental dedication to making a difference in the lives of others

Daneng Li, M.D.
Medical Oncologist
Duarte - Main Campus

Daneng Li, M.D., is a medical oncologist specializing in geriatric oncology and treating gastrointestinal cancers.

Erminia Massarelli, M.D., Ph.D., profile photo
Duarte - Main Campus

Erminia Massarelli, M.D., Ph.D., M.S., is the co-director of the Lung Cancer and Thoracic Oncology Program, and an associate professor in the Department of Medical Oncology & Therapeutics Research at City of Hope. She specializes in lung and head and neck cancers.

Kevin Mcdonell
Duarte - Main Campus

Kevin McDonnell, M.D., Ph.D., is a medical oncologist and assistant professor in the Department of Medical Oncology & Therapeutic Research at City of Hope.

Joanne Mortimer
Joanne Mortimer, M.D., F.A.C.P., F.A.S.C.O.
Medical Oncologist; Baum Family Professor in Women's Cancers
Duarte - Main Campus

Listed numerous times as one of America’s “Top Doctors” by Castle Connolly, Joanne Mortimer, M.D., is the Baum Family Professor in Women’s Cancers. She takes a special interest in examining how hormones affect normal and tumor cells.

Doctor Sumanta Kumar Pal
Duarte - Main Campus; Lennar Foundation Cancer Center

Sumanta Kumar Pal, M.D., FASCO, is an internationally recognized leader in the area of genitourinary cancers. He is the co-director of City of Hope's Kidney Cancer Program and is the head of the kidney and bladder cancer disease team at the institution.

Community Team

Meet Medical Oncologist Naveen Gupta, M.D.
Naveen Gupta, M.D.
Medical Oncologist and Hematologist
Upland

Naveen Gupta, M.D., is board certified in medical oncology and hematology practicing in the Upland area since 1980.

George Hajjar
George Hajjar, M.D., FACP
Medical Oncologist and Hematologist
Santa Clarita

George Hajjar, M.D., FACP is a medical oncologist and regional medical director for San Fernando Valley, Santa Clarita Valley and Ventura County.

Joanne Jeter
Joanne M. Jeter, M.D.
Medical Oncologist
Duarte - Main Campus

Joanne M. Jeter, M.D. is an Associate Professor, Division of Medical Oncology, Department of Internal Medicine at City of Hope, Duarte, California.

Thomas Joseph
Thomas P. Joseph, M.D.
Medical Oncologist and Hematologist
Santa Clarita

Thomas P. Joseph, M.D., is a medical oncologist and assistant clinical professor in the Department of Medical Oncology & Therapeutics Research.

Doctor Misagh Karimi
Misagh Karimi, M.D.
Medical Oncologist and Hematologist
Lennar Foundation Cancer Center; Newport Beach

Misagh Karimi, M.D., is a medical oncologist who is passionate about patient education, appearing frequently at community forums to discuss obesity, the environment and other possible risk factors for cancer.

Ashwin-Kashyap
Ashwin Kashyap, M.D.
Medical Oncologist and Hematologist
Thousand Oaks

Ashwin Kashyap, M.D., is a medical oncologist at the City of Hope Thousand Oaks location.

Ziad U. Khan, M.D.
Medical Oncologist and Hematologist
Colton

Ziad U. Khan, M.D., who sees patients at City of Hope's Colton facility, enjoys being a community physician with ties to a major cancer center, enabling him to give patients “excellent care close to home.”

Daniel Jae Kim
Daniel Jae Kim, M.D.
Medical Oncologist and Hematologist
South Pasadena

Daniel Jae Kim, M.D., medical oncologist at City of Hope's South Pasadena location.

Meet Medical Oncologist Hematologist Stephen Koehler, M.D.
Stephen Koehler, M.D.
Medical Oncologist and Hematologist
South Pasadena

Stephen Koehler, M.D., is a medical oncologist at City of Hope's South Pasadena location.

Sudarsan Vishnu Kollimuttathuillam, M.D.
Medical Oncologist and Hematologist
Huntington Beach; Lennar Foundation Cancer Center; Seacliff

Sudarsan Vishnu Kollimuttathuillam, M.D., is a medical oncologist and hematologist at City of Hope's Huntington Beach and Irvine Sand Canyon locations. Dr. Kollimuttathuillan places a priority on offering his patients access to innovative treatments and clinical trial options.

City of Hope Orange County Lennar Foundation Cancer Center

Research Team