Collectively, our physicians offer a combined 70 years of experience in patient care, academic practice and clinical biotechnology research. This is coupled with our unparalleled links to major academic institutions, therapeutics development organizations, local hospitals, key specialists and diagnostic and imaging facilities.

While most oncology and hematology treatment is best provided in the outpatient setting, when hosptial based care is needed, we provide this through our hospital privileges held at Los Robles Hospital and Medical Center, Simi Valley Hosptial and West Hills Hospital.

Ashwin Kashyap, MD, FACP

Dr. Ashwin Kashyap, MD, FACPSpecialty: Medical Oncology, Hematology

Focus & Philosophy: The integration of all types of care available in order to fulfill the needs of every person as a complete, unique individual.

Background Information: Dr. Kashyap has over 20 years of experience in the management of patients with Cancer.

He originates from England and earned his Medical Degree from the University of London in 1985. He then went on to complete his residency and fellowship trainings at the University of Rochester in upstate New York before joining the City of Hope Cancer Center in 1993. At the City of Hope he was a member of the faculty and staff for many years prior to establishing his practice in the Conejo and Simi Valley area in 2005.

He has been certified by the American Board of Internal Medicine in the specialty of Internal medicine and the two sub-specialties of Medical Oncology and Hematology. He is also a member of numerous professional organizations, most prestigiously the American College of Physicians, which honored him with the highly coveted title of Fellow (FACP) in 1999 as recognition of his dedication to patient care and his contributions to clinical research.

His goal has always been to find less toxic, more effective ways to treat cancer. This passion has lead to the publication of more than 100 scientific articles, abstracts and book chapters and he has been invited to lecture worldwide regarding his patient related research work in cancers such as hematological malignancies and their treatments.

Click here to watch a video of Dr. Kashyap speaking about the treatment of Breast Cancer at the Ronald Reagan Presidential Library in 2011.

Bruce Zietz, MD

Dr. Bruce Zietz Dr. Bruce Zietz is a graduate of the UCSF School of Medicine. He has trained and has been on Faculty at one time or another at all major Los Angeles Institutions and was on the on boards of the original UCLA oncology network and MOASC.

More recently he was in Private Practice in the San Fernando Valley for more than 40 years. Dr. Zietz is Board Certified in both Hematology and Medical Oncology and is very interested in pharmacology as well as overall patient care.

Dr. Zietz’s greatest desire as an oncologist is to assure quality of life for his patients, ” therapy with compassion”. This love of life is continued in his other great passion, his hobby of breeding thoroughbred horses.

Our Staff

Stella Ortiz, RN

Stella is the senior RN in our office and also serves as the office manager. She has been in nursing practice for more than 30 years and in this office for 21 years. She is a frequent invited speaker at professional nursing meetings and is a former president of the local chapter of the Oncology Nursing Society.

Nora Heisch, LVN

Nora is a very experienced LVN, having been in practice for some 20 years. She also shares responsibility for running the blood draw station and our in house clinical lab.

Gabby Real, RN

Gabby is our newest member of the nursing staff, having recently completed her RN. However, she has worked in our clinical lab for many years in the past and so a well established member of our clinical team. She also shares responsibility for the blood draw station and in-house clinical lab.