We are focused on your unique journey
The providers and staff at Cancer and Blood Care Specialists are committed to delivering the kind of personal, convenient, and compassionate care that is so difficult to find in today’s medical climate. We offer an integrated approach, with phlebotomy and infusion services on site, so patients can get their blood drawn and treatments in the same place they have their doctor visits.
We are committed to delivering cutting-edge care and providing awareness and access to clinical trials and surgical options through our strong relationship with St. Joseph Hospital and it’s affiliated Center for Cancer Prevention and Treatment in Orange, CA. Dr. Otis currently chairs the weekly Breast Cancer Conference at St. Joseph where oncologists, radiologists, pathologists, geneticists, and surgeons come together to discuss treatment plans and share best practices and the latest research on treatment.
We aim to provide personalized attention to each and every visitor to our practice. Every patient is a part of our extended family. We know our patients’ names and stories, and share deeply in their journey through the treatment and healing process. Our mission is to make your experience positive and convenient.
Stavroula “Stevie” Otis, M.D.
Stavroula Otis, known as “Stevie” to friends and family, is a board-certified physician specializing in hematology and oncology, treating both men and women at Cancer and Blood Care Specialists in Orange, California. Her areas of expertise include breast cancer, prostate cancer, colon cancer, lung cancer, myelomas, lymphomas, bleeding, clotting, and bone marrow disorders.
Dr. Otis received her Bachelor of Science in biology from Caltech in 1999. She received her medical degree at Keck School of Medicine at the University of Southern California in Los Angeles in 2003. She then moved to Houston to complete her internship and internal medicine residency at Baylor College of Medicine. In 2010 she completed her hematology and oncology fellowship at Stanford University, staying on as clinical faculty until the end of 2012.
Dr. Otis currently serves on the board of directors of the St. Joseph Hospital Foundation, as well as the board of directors of the Medical Oncology Association of Southern California (MOASC). She also chairs the weekly Breast Cancer Conference at the Center for Cancer Prevention and Treatment at St. Joseph Hospital. Dr. Otis also sits on the Physician Quality Review Board for St. Joseph Hospital.
Dr. Otis is dedicated to providing personalized and compassionate attention to the patients under her care. She believes that a patient should fully understand their condition and treatment plan and she takes the time to explain the details to patients and their families. Dr. Otis strives to make a patient’s experience as meaningful, comfortable, and convenient as possible.
Dr. Otis is fluent in her native English, and proficient in Spanish. She is currently accepting new patients.
Kellie Spector, M.D.
Kellie Spector is a board-certified physician specializing in hematology and oncology, treating patients at Cancer and Blood Care Specialists in Orange, California. She has hospital privileges at Providence St. Joseph - Orange, and her areas of expertise include general hematology and oncology.
Dr. Spector received her Bachelor of Science, summa cum laude, in Human Biology from the University of Southern California in 2014. She received her medical degree at the Keck School of Medicine at the University of Southern California in 2018. She completed her Internal Medicine Residency at Cedars-Sinai Medical Center in Los Angeles in 2021 and her Hematology/Oncology Fellowship at Olive-View UCLA Medical Center in 2024.
Dr. Spector is committed to providing compassionate, individualized care for every patient. She is currently welcoming new patients to her practice and is an active member of both the American Society of Clinical Oncology (ASCO) and the American Society of Hematology.
Kaitlin Jones, PA-C
Kaitlin Jones is a Physician Assistant licensed and certified in the state of California. Kaitlin received her Bachelor of Science in Psychobiology from University of California, Los Angeles (UCLA) in 2012. She then completed her Master of Medical Science at Arcadia University in Newark, Delaware, to become a certified Physician Assistant.
After roles in internal medicine and oncology practices, Kaitlin joined Cancer and Blood Care Specialists in March of 2019. She focuses on fostering a partnership with each of her patients and empowering them to be part of the medical decision making process.
Outside of her work, Kaitlin enjoys being the “cool auntie that is always traveling,” and finding time to give back to the community. She and her husband founded Fresh Squeezed Joy, a non-profit organization focused on raising money and awareness for Vascular Ehlers Danlos Syndrome (VEDS), a rare, life threatening, hereditary condition with extremely limited treatment options.
Sarah Schreiber, PA-C
Sarah Schreiber is a Physician Assistant licensed in the state of California. Sarah received her undergraduate Bachelor of Science in Biology with a minor in Chemistry from Millersville University of Pennsylvania. She completed her Master of Medical Science with honors at Nova Southeastern University, Fort Lauderdale, Florida to become a certified Physician Assistant.
Sarah has special interest in the care and management of medically complex patients. She values thorough patient communication and trust and enjoys helping patients achieve their optimal quality of life. Sarah has been a team member of Cancer and Blood Care Specialists since April 2022.
Outside of work, Sarah can be found on or in the ocean. She has a deep appreciation for nature and enjoys traveling internationally to surf in remote places. She is also an accomplished free-diver, frequenting depths of 60-100 feet.
Donna Valentine, PA-C
Donna Valentine is a licensed and certified physician assistant in the states of California and Arizona. She received her Primary Care Physician Assistant certification from Western University of Health Sciences. She also has a Bachelor of Science Degree in Business Administration/Marketing from the University of the Pacific.
Donna has spent the last 25 years treating patients as an oncology focused physician assistant under the guidance of both medical and surgical oncologists. For much of her career, Donna has been in breast cancer focused roles, but has broad experience in all forms of hematology and oncology. Donna was given the honor of Provider of the Year at TruCare Health in 2019, and her dedication to her patients shows at Cancer and Blood Care Specialists.
When out of the office Donna can be found on the golf course - persistently pursuing a single digit handicap, cheering on her beloved Chicago Bears and Cubbies, or traveling the world with her husband Dave.