Sharon Ondreyco,MD


Medical Oncologist


I was drawn to City of Hope because of its core purpose focused on personalized patient care, and I am excited to bring that quality care to my patients in the North Phoenix Outpatient Care Center.

City of Hope North Phoenix
2915 W. Rose Garden Lane
Phoenix, AZ 85027
City of Hope Scottsdale
9755 N. 90th St.
Scottsdale, AZ 85258
Suites A-100 and B-130
Medical Oncology
Medical school:

Ohio State College of Medicine - Columbus, OH


Internal Medicine - University of Kansas Medical Center, Kansas City, KS


Hematology and Medical Oncology - University of Utah Health, Salt Lake City, UT


Medical Oncology - American Board of Internal Medicine

Internal Medicine - American Board of Internal Medicine

About Me

Dr. Sharon Ondreyco joined City of Hope in March 2023 at the North Phoenix Outpatient Care Center. As a Medical Oncologist, she works with a multidisciplinary team to evaluate and treat patients with various types and stages of cancer. She is especially focused on hematology and the treatment of breast cancers.

Dr. Ondreyco earned a medical degree from Ohio State College of Medicine in Columbus, Ohio, before completing an internship and residency in internal medicine at the University of Kansas Medical Center in Kansas City, Kansas. She went on to complete a hematology and medical oncology fellowship at University of Utah Health in Salt Lake City, Utah.

Board certified in internal medicine and medical oncology by the American Board of Internal Medicine, Dr. Ondreyco has published extensively on a wide range of topics over her 40-plus years in oncology, including the staging of abdominal lymphoma, preleukemia and the use of an anticoagulant during pregnancy. She has been recognized as a top doctor and oncologist in Arizona numerous times in her career and also held many leadership positions with organizations including the Arizona Oncology State Board, the Arizona Oncology State Quality Committee and the Arizona Oncology Phoenix Governing Board.

Patient ratings
Star ratings and comments are only available for medical, radiation and gynecologic oncologists. Gynecologic surgical offerings are not included at this time due to a different survey tool required to evaluate these services. CTCA uses a validated Press Ganey® survey, which captures patient experience feedback for the primary oncology services of chemotherapy and radiation therapy at our comprehensive care and research centers. Following industry best practice, star ratings and comments are only published for physicians with a minimum of 30 completed patient surveys.