Jonathan Lopez, MD

Jonathan Lopez, MD

Cancer (Oncology/Hematology)
Accepting new patients

New Patient


Oncologist/Hematologist Profile

As an oncologist and hematologist, my goal is to help patients maintain a good quality of life during cancer treatments.

The diagnosis of cancer is much more than a physical disease. It's a frightening and emotional experience, for both the patient and his or her family. While I'm 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 families, I work hard to ensure everyone understands the diagnosis and treatment plan, and I will always try to translate the language of medicine into plain 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 served in The United States Air Force. I obtained the rank of Lieutenant Colonel before retiring after 27 years of service in 2011. I practiced as a hematologist and medical oncologist at David Grant Medical Center, becoming the Chief of Medical Oncology in 2009. 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.

See my past Doc Talk Live events. Doc Talk Live is a series of free physician talks on health topics you want to know more about. You can watch recorded past events on our archive page!


1020 Nut Tree Road
Suite 390
Vacaville, California

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 Oncology
  • Board Certified in Internal Medicine
  • Board Certified in Hematology
Professional Memberships:

  • American Society of Clinical Oncology
  • American Society of Hematology
Languages Spoken:

  • English,Spanish

Videos ft. Dr. Lopez

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