Daniel R. Greenwald, MD
Accepting New Patients

Daniel R. Greenwald, MD

  • Hematology Oncology
Average rating: 5.0
 
Santa Barbara Cancer Care |

About

Dr. Daniel Greenwald is a medical oncologist and hematologist who practices in Santa Barbara. He treats patients with all types of cancer, including hematologic malignancies, and is board certified in medical oncology and hematology. He provides compassionate, empathetic cancer care to the whole patient, and involves their family and caregivers in clinical discussions.

Throughout each patient's cancer treatment, Dr. Greenwald works with a multidisciplinary team that includes their primary care physician, other specialists, and local resources for supportive care. He utilizes molecular/genomic sequencing of tumor tissue to help identify treatments that may work best for each individual patient. He has a passion for bringing innovative clinical trials and research to the community.

Dr. Greenwald received his medical degree from the Stanford University School of Medicine. He also completed his internal medicine residency and chief residency, and hematology & oncology fellowship at Stanford University.

Dr. Greenwald has worked as a medical oncologist and hematologist in Santa Barbara since 2007. Prior to joining UCLA Health, he was Director of Clinical Research at the Ridley-Tree Cancer Center. He is excited to bring the world-class reputation and research capabilities of UCLA to Santa Barbara area patients. He collaborates with basic science laboratories at UC Santa Barbara, is Director of the Tumor Board at Cottage Hospital, and is Director of Oncology Education for the internal medicine residency program at Cottage Hospital. He is a member of the American Society of Clinical Oncology, serves on the Community Leadership Council for the Santa Barbara Chapter of the American Cancer Society and served on the board of directors of the Santa Barbara Visiting Nurses and Hospice from 2010 to 2019. Dr. Greenwald has been a member of the Board of Governors of the Alumni of the Stanford University School of Medicine since 2013.

When he's not working, Dr. Greenwald enjoys woodworking, gardening, cooking, and his family.

Additional Hospital Affiliations:
Santa Barbara Cottage Hospital, Goleta Valley Cottage Hospital, and Santa Ynez Valley Cottage Hospital.

Languages

English

Education

Medical Board Certifications

Hematology, American Board of Internal Medicine, 2017
Medical Oncology, American Board of Internal Medicine, 2007

Fellowship

Hematology & Oncology, Stanford University School of Medicine, 2007

Residency

Internal Medicine, Stanford University School of Medicine, 2003

Degree

MD, Stanford University School of Medicine, 2000

Hospital Affiliations

Ronald Reagan UCLA Medical Center

Insurance

  • Aetna
  • Anthem Blue Cross
  • Blue Shield of California
  • Centivo
  • Cigna
  • First Health
  • Health Net of California
  • Interplan (part of HealthSmart)
  • Medicare Advantage
  • MultiPlan
  • UFCM Health System
  • Prime Health Services
  • Private Healthcare Systems (PHCS)
  • TRICARE
  • UnitedHealthcare

The list of health care plans above may not be comprehensive and could change. 
Please contact your benefits coordinator or health insurance company directly to verify coverage.

Visit our health insurance information page for more details.

Reviews

Overall Rating:
5.0
584 total ratings | 275 reviews
5.0
September 30, 2025
He’s intelligent, he understands what you are asking, doesn’t waste a lot of time with nonsense information. Lucky to have him here in SB.
5.0
September 30, 2025
I always enjoy my visit with Dr. Greenwald
5.0
September 30, 2025
Dr Greenwald is the best there is. Saved my life.
5.0
September 29, 2025
Dr. Greenbaum clearly had studied my chart and the test results prior to talking to me. As usual, he was supportive and reassuring.
5.0
September 25, 2025
I feel that I am an excellent hands with Dr Greenwald. I am just so grateful to have him as my hematologist.