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Jonathan López, MD
Cancer (Oncology/Hematology)

Jonathan López

NorthBay Cancer Center
1860 Pennsylvania Ave.
Suite 230
Fairfield, CA
(707) 646-4000 Accepted Health Plans

Professional Profile

Dr. López offers the latest treatments available for both cancer (oncology) and diseases of the blood (hematology).

"My goal is to help my patients maintain a good quality of life as they undergo these treatments. The diagnosis of cancer is much more than a physical disease. It is a frightening and emotional experience, for both the patient and his or her family. While I am trained in the latest advancements for diagnosis and treatment of cancer (oncology) and disorders of the blood (hematology), I strive to give my patients the compassion and support they need as we battle their illness.

Open doctor/patient communication is very important. I encourage patients to ask questions about their evaluation, diagnosis and treatment. With patients and family, I work hard to ensure everyone understands the diagnosis and treatment plan and I will always try to translate the language of "Medicine" into English.

I encourage patients to educate themselves about their illness but be sure to use credible websites, such as the American Cancer Society and the National Cancer Institute, who offer good information on a variety of cancer-related topics.

Prior to joining the NorthBay Cancer Center I was served in The United States Air Force. I obtained the rank of Lieutenant Colonel before I retired in 2011. I practiced as a Hematologist and Medical Oncologist at David Grant Medical Center, becoming the Chief of Medical Oncology in 2009. I retired from the USAF after 27 years of service. My wife, our two sons and I moved to Fairfield in 2004. We enjoyed the area and people so we settled down. I hope to practice at NorthBay and live in the area for many years to come."


Medical Degree, Uniformed Services University of Health Sciences, Bethesda, MD

Internship and Residency in Internal Medicine, Wilford Hall Medical Center, Lackland AFB, TX

Fellowship in Hematology and Oncology, Wilford Hall Medical Center, Lackland AFB, TX


Board Certified in Internal Medicine

Board Certified in Oncology

Board Certified in Hematology

Professional Memberships:

  • American Society of Clinical Oncology
  • American Society of Hematology

Hospital Affiliations:

NorthBay Hospital VacaValley Hospital