
City of Hope Orange County
City of Hope Orange County Lennar Foundation Cancer Center is home to a team of acclaimed cancer-fighting physician-scientists delivering world-renowned treatment, research and cures.
Cancer research that has led to breakthrough treatments used around the globe is conducted right here. Patients who once traveled for expert care now have access to the world’s best cancer-fighting minds close to home. This is the Hope you’ve been waiting for.
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.
Finding out you have cancer 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.

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.

P. Grace Harrell, MD, MPH is a Associate Clinical Professor Department: Anesthesiology.


Sandy Ting Liu, M.D., is a Assistant Research Professor, Department of Medical Oncology & Therapeutics Research

In her capacity as director of thoracic medical oncology at the Lennar Foundation Cancer Center at City of Hope Orange County, Jyoti Malhotra, M.D., M.P.H., is excited about offering patients an expansive slate of early-phase clinical trials, to offer more people access to new therapies.

Dina Ragheb, M.D., believes in treating her patients the same way she would treat a member of her own family. In fact, a close family member has received therapy at City of Hope. She is excited to bring that level of top-quality care to patients in Irvine as medical director of diagnostic imaging at

Jason Salsamendi, M.D., is a interventional radiologist and clinical professor in the Department of Diagnostic Radiology at City of Hope.


Jennifer Tseng, M.D., is the Medical Director of Breast Surgery, City of Hope Orange County

Jennifer S. Woo, M.D., is a pathologist and Medical Director of Blood Bank and Transfusion Medicine Services.

Mohamad N. Barakat, M.D., is a medical oncologist and hematologist at City of Hope's Huntington Beach and Irvine Sand Canyon locations. Dr. Barakat focuses on working as a team with fellow experts from across oncology specialties and offering access to leading-edge technology at City of Hope.

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 pancreatic cancer and other malignancies.

Yaser Homsi, M.D., is a hematologist and medical oncologist at City of Hope's Huntington Beach, Irvine Sand Canyon and Newport Beach Lido locations. He is also an assistant clinical professor in the Department of Medical Oncology & Therapeutics Research.

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.

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 Torrance, Huntington Beach, Irvine Sand Canyon and Newport Beach Lido locations. Dr. Tchekmedyian has led innovative research into a potential immunotherapy for patients with advanced prostate cancer and a new

N. Simon Tchekmedyian, M.D., is a medical oncologist and hematologist at City of Hope's Huntington Beach, Irvine Sand Canyon, Long Beach Elm and Torrance locations. Dr. Tchekmedyian is also a clinical professor in the Department of Medical Oncology & Therapeutics Research.

Mohamad N. Barakat, M.D., is a medical oncologist and hematologist at City of Hope's Huntington Beach and Irvine Sand Canyon locations. Dr. Barakat focuses on working as a team with fellow experts from across oncology specialties and offering access to leading-edge technology at City of Hope.

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 pancreatic cancer and other malignancies.

Dilruba Haque, M.D., is a medical oncologist and hematologist and an assistant clinical professor in the Department of Medical Oncology & Therapeutics Research. Dr. Haque is located at City of Hope's Irvine Sand Canyon and Newport Beach Lido offices.

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.

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 Torrance, Huntington Beach, Irvine Sand Canyon and Newport Beach Lido locations. Dr. Tchekmedyian has led innovative research into a potential immunotherapy for patients with advanced prostate cancer and a new

N. Simon Tchekmedyian, M.D., is a medical oncologist and hematologist at City of Hope's Huntington Beach, Irvine Sand Canyon, Long Beach Elm and Torrance locations. Dr. Tchekmedyian is also a clinical professor in the Department of Medical Oncology & Therapeutics Research.

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.

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 an hematologist - oncologist and associate professor in the department of Hematology & Hematopoietic Cell Transplantation.

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.

Hang T. Dang, D.O., is a breast surgical oncologist specializing in breast cancer surgery at City of Hope | 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.

Edward S. Kim, M.D., M.B.A., is the physician-in-chief of City of Hope Orange County and Vice Physician-in-Chief of City of Hope National Medical Center Dr. Kim joins City of Hope in fulfilling its promise of enhanced local access to cancer breakthroughs by leading its esteemed team of clinicians in

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.

Richard T. Lee, M.D., is the medical director of the Integrative Medicine Program in the Department of Supportive Care Medicine at City of Hope.

Guido Marcucci, M.D., is chair of the Department of Hematological Malignancies Translational Science and Chief of the Division of Leukemia.

Dilruba Haque, M.D., is a medical oncologist and hematologist and an assistant clinical professor in the Department of Medical Oncology & Therapeutics Research. Dr. Haque is located at City of Hope's Irvine Sand Canyon and Newport Beach Lido offices.

Yaser Homsi, M.D., is a hematologist and medical oncologist at City of Hope's Huntington Beach, Irvine Sand Canyon and Newport Beach Lido locations. He is also an assistant clinical professor in the Department of Medical Oncology & Therapeutics Research.

George Semeniuk III, M.D., is a hematologist/oncologist specializing in leukemia, lymphoma and hematopoietic cell transplantation.
Find tips, tools and resources on how to address the many physical and emotional issues that can arise during treatment.
Being newly diagnosed is a critical stage in any disease. Make sure you gather all the professional advice available.
Use our cancers and conditions search tool to find detailed information about the many diseases we treat at City of Hope.
If you haven’t been to City of Hope before, you probably have a few questions. This page has information to help your first visit go as smoothly as possible.
We believe you need to clearly understand your treatment options in order to join your care team in making the right decisions.
The information on this page will help you understand the finances of your treatment and provides options for managing your insurance and payments
Our team of experts are ready to help you understand the latest advancements in cancer treatment and the opportunities to participate in clinical trials of promising new therapies.
Whether you are seeking help in navigating your treatment or assistance with insurance, billing, appointments and other aspects of your care, we are here for you.