When it comes to cancer in Orange County, it’s Hope First.
Cancer is never easy, but it starts with Hope. As a leader in exceeding national survivor rates, City of Hope is all-in on ending cancer. Together, our 600 cancer physicians, 1000 researchers and scientists, and our 800 annual cancer-focused clinical trials are what drive us forward.
First in prevention. First in treatment. First in survival. When it comes to cancer in Orange County, it’s Hope First.
Orange County’s most advanced breast cancer prevention, detection and treatment.
Expertise in cancer treatment, complex non-cancerous gynecologic disorders, urogynecology and pelvic floor dysfunction.
Expertise, advanced therapies and lifesaving clinical trails offer the most advanced lung cancer care in Orange County.
Treating GI cancers with leading-edge technologies, precision medicine, therapeutic and radiological advances.
Targeted treatments and clinical trials known to improve the lives of patients with leukemia, lymphoma, multiple myeloma and more.
Integrated approach to diagnose and treat prostate, kidney, bladder and testicular cancers to ensure optimal outcomes.
Orange County's Most Comprehensive
Cancer Network
City of Hope is delivering on our promise to the people of Orange County and changing cancer care for our family, friends, and neighbors. Patients can now access our network of advanced care at City of Hope Orange County Lennar Foundation Cancer Center in Irvine and our OC regional clinics. The cancer center, regional clinics and the planned hospital will create OC’s largest network exclusively dedicated to cancer treatment, research, and cures.
A cancer diagnosis comes with many questions and can be emotionally overwhelming. Though types of cancers vary and everyone copes in uniquely individual ways, here are answers to some of the most common questions we hear. Let us help you begin navigating the journey back to health.
A cancer diagnosis can be overwhelming for you and your loved ones. Experts advise taking the time to make important decisions and, if possible, asking a friend or loved one to help during these early days. One of the most important decisions you will need to make is selecting your doctor (the oncologist) and the medical team that will support you.
Regional Clinic Locations
Christian Co Lu, M.D., M.H.S., is a patient-centric physician with 15+ years of experience in medical care.
Nikki Zahabi, D.O., is an assistant clinical professor with a strong background in internal medicine and critical care in the Department of Medicine at City of Hope in Duarte, California.
Monzr M. Al Malki, M.D., is an associate professor in the Department of Hematology & Hematopoietic Cell Transplantation and is board certified in internal medicine, hematology and medical oncology at City of Hope.
Seth Cohen, M.D., is a urologic surgeon with a focus on female pelvic medicine and reconstructive surgery at City of Hope's community practice sites in Orange County.
Joshua G. Cohen, M.D., F.A.C.O.G., F.A.C.S., is a board-certified gynecologic oncologist dedicated to offering his patients in Orange County empathy and excellence in clinical care.
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.
Amrita Krishnan, M.D., directs the Judy and Bernard Briskin Center for Multiple Myeloma Research at City of Hope's cancer research hospital, seeking to make gains in one of the most rapidly changing areas in cancer research.
Christian Co Lu, M.D., M.H.S., is a patient-centric physician with 15+ years of experience in medical care.
Hoda Pourhassan, M.D., is a hematologist-oncologist in the Department of Hematology & Hematopoietic Cell Transplantation at City of Hope.
George Bernard Semeniuk, III, M.D., is a hematologist/oncologist specializing in leukemia, lymphoma and hematopoietic cell transplantation.
Wade Smith, M.D., is a medical oncologist specializing in breast cancer at City of Hope Orange County and Duarte.
Tingting Tan, M.D., Ph.D., is a medical oncologist and assistant clinical professor in the Department of Medical Oncology & Therapeutics Research at City of Hope.
Joshua G. Cohen, M.D., F.A.C.O.G., F.A.C.S., is a board-certified gynecologic oncologist dedicated to offering his patients in Orange County empathy and excellence in clinical care.
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.
Christian Co Lu, M.D., M.H.S., is a patient-centric physician with 15+ years of experience in medical care.
Danny Nguyen, M.D., is a medical oncologist and hematologist at City of Hope's Huntington Beach and Irvine Sand Canyon locations. Dr. Nguyen is also an assistant clinical professor in the Department of Medical Oncology & Therapeutics Research.
Nishan Tchekmedyian, M.D., is a hematologist and medical oncologist at City of Hope's Huntington Beach, Irvine Sand Canyon, and Newport Beach Lido locations.
Nerses Simon Tchekmedyian, M.D., FACP, is a medical oncologist and hematologist at City of Hope's Huntington Beach, Irvine Sand Canyon, Long Beach Elm locations. Dr. Tchekmedyian is also a clinical professor in the Department of Medical Oncology & Therapeutics Research.
Sassan Farjami, M.D., is a hematologist and medical oncologist at City of Hope's Long Beach Elm and Long Beach Worsham locations. Dr. Farjami is also an associate clinical professor in the Department of Medical Oncology & Therapeutics Research.
Christian Co Lu, M.D., M.H.S., is a patient-centric physician with 15+ years of experience in medical care.
Nerses Simon Tchekmedyian, M.D., FACP, is a medical oncologist and hematologist at City of Hope's Huntington Beach, Irvine Sand Canyon, Long Beach Elm locations. Dr. Tchekmedyian is also a clinical professor in the Department of Medical Oncology & Therapeutics Research.
Lihong Wu, M.D., is a medical oncologist and hematologist at City of Hope's Long Beach Elm and Worsham locations. Dr. Wu has made it her mission to help others triumph over cancer. She prides herself on being there for her patients and finding the best possible treatments for them.
Sassan Farjami, M.D., is a hematologist and medical oncologist at City of Hope's Long Beach Elm and Long Beach Worsham locations. Dr. Farjami is also an associate clinical professor in the Department of Medical Oncology & Therapeutics Research.
Christian Co Lu, M.D., M.H.S., is a patient-centric physician with 15+ years of experience in medical care.
Specializing in bioengineering and tumor micro-environment in cancer development and progression, Andrew Nguyen, M.D., is an assistant clinical professor in the Division of Surgical Oncology in the Department of Surgery at City of Hope.
Lihong Wu, M.D., is a medical oncologist and hematologist at City of Hope's Long Beach Elm and Worsham locations. Dr. Wu has made it her mission to help others triumph over cancer. She prides herself on being there for her patients and finding the best possible treatments for them.
Nikki Zahabi, D.O., is an assistant clinical professor with a strong background in internal medicine and critical care in the Department of Medicine at City of Hope in Duarte, California.
City of Hope Orange County Lennar Foundation Cancer Center features the latest and most comprehensive suite of market-leading technology for screening, diagnosing and treating cancer, delivered by highly-specialized experts who raise the bar for scientific expertise and exceptional outcomes. Patients receive fully integrated, multidisciplinary cancer care in one convenient location.
City of Hope Orange County leaders and physicians are available to provide commentary on a wide range of healthcare topics and cancer-focused news,