City of Hope Orange County
Cancer Treatment in Orange County
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.
City of Hope is home to some of the best minds in radiation oncology in the nation, with a technology suite containing the most innovative radiotherapy systems, in the most advanced configurations, available anywhere.
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.
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 Cancer Care Specialists
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.
Plastic surgeon Mouchammed Agko, M.D., understands that many cancer survivors want to continue their lives after treatment without physical reminders of the disease. His goal is to help them achieve that — in addition to providing additional aesthetic improvements, if it meets a patient’s needs.
Ibrahim T. Aldoss, M.D., is a hematologist-oncologist and board certified in internal medicine, medical oncology and hematology. His clinical expertise is in acute lymphoblastic leukemia and acute myeloid leukemia.
Haris Ali, M.D., is a hematologist-oncologist and associate professor in the Department of Hematology & Hematopoietic Cell Transplantation.
Nairi Berner, M.D., is an Assistant Clinical Professor, Department of Diabetes, Endocrinology & Metabolism. Endocrinologist Nairi Berner, M.D., M.S., centers her approach to patient care on trust and partnership.
Tanuja Bhandari, M.D., is a radiation oncologist at City of Hope who is well-versed in all forms of radiation oncology, including intraoperative radiation therapy.
Azra Borogovac, M.D., M.S., is a hematologist at City of Hope Orange County Lennar Foundation Cancer Center. For Dr. Borogovac, the patient is the most important part of the medical team. She sees the opportunity to provide care to people with cancer as a privilege.
Laurie Brunette, MD, is a board-certified gynecologic oncologist who is an expert in surgical cytoreduction of cancer and in the use of minimally invasive surgical techniques, including robotic surgery and fertility-preserving procedures.
Luke Chen, M.D., is a medical oncologist and hematologist at City of Hope's Huntington Beach and Irvine Sand Canyon locations. Dr. Chen’s research has explored ways to improve treatment for prostate cancer and other malignancies.
Jennifer Chen M.D., is a Lead Breast Imager and Assistant Clinical Professor, Department of Diagnostic Radiology at City of Hope Orange County.
Jessica Cheng, M.D., is among the nation’s few, and Orange County’s only, fellowship-trained experts in cancer rehabilitation medicine. This is a subspecialty of physical medicine and rehabilitation (PM&R) also known as physiatry.
Laurie Brunette, MD, is a board-certified gynecologic oncologist who is an expert in surgical cytoreduction of cancer and in the use of minimally invasive surgical techniques, including robotic surgery and fertility-preserving procedures.
Luke Chen, M.D., is a medical oncologist and hematologist at City of Hope's Huntington Beach and Irvine Sand Canyon locations. Dr. Chen’s research has explored ways to improve treatment for prostate cancer and other malignancies.
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.
Tiffany Loh, M.D., strives to address patients’ concerns in a caring, compassionate way. She knows that every patient is a unique individual, so she puts a priority on listening carefully and working with patients to ensure that their needs are met.
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.
Erica Veguilla, M.D., takes a holistic approach, combining conventional treatments like pharmaceuticals and traditional psychotherapy with evidence-based complementary treatments, including meditation and lifestyle interventions.
Jeffrey S. Yoshida, M.D., is the medical director of urologic surgery at City of Hope Orange County. He is currently located at the Newport Beach locations.
Regional Clinic Locations
Jessica Cheng, M.D., is among the nation’s few, and Orange County’s only, fellowship-trained experts in cancer rehabilitation medicine. This is a subspecialty of physical medicine and rehabilitation (PM&R) also known as physiatry.
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.
Laurie Brunette, MD, is a board-certified gynecologic oncologist who is an expert in surgical cytoreduction of cancer and in the use of minimally invasive surgical techniques, including robotic surgery and fertility-preserving procedures.
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.
Christian Co Lu, M.D., M.H.S., is a patient-centric physician with 15+ years of experience in medical care.
Karla Olmedo, M.D., is a rising star in hematology/oncology. Dr. Olmedo is driven by the pursuit of advances in immunology and the promise of cell therapy in effectively fighting cancer.
Dr. Patel is a medical oncologist at City of Hope's Long Beach Elm and Long Beach Worsham 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.
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.
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.
Karla Olmedo, M.D., is a rising star in hematology/oncology. Dr. Olmedo is driven by the pursuit of advances in immunology and the promise of cell therapy in effectively fighting cancer.
Dr. Patel is a medical oncologist at City of Hope's Long Beach Elm and Long Beach Worsham locations.
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.
Orange County Stories
Orange County Newsroom
City of Hope Orange County leaders and physicians are available to provide commentary on a wide range of healthcare topics and cancer-focused news,