COVID Update: Masks are still required in health care settings, even if you’re fully vaccinated. Read our FAQs.

Andrew Deemer, MD

COVID-19 update:

If you suspect you have symptoms of COVID-19, please call our nurse line at 888-261-8431 before coming in or use one of our virtual care options. Do not schedule online. For general guidance on COVID-19, visit or call the county hotline at 2-1-1.

Dr. Andrew Deemer, MD


Phone Number
3601 Vista Way Ste 203
Oceanside, CA 92056
Get directions
Accepts new patients


  • General Surgery


Dr. Andrew Deemer is fellowship-trained in vascular surgery and specializes in treating vascular disease, aortic aneurysms, carotid artery disease, adrenal disease and other conditions.

Board Certifications

  • American Board of Surgery, General Surgery, 1990

Medical Education

  • University of California, San Diego, MD, 1984


  • Boston Medical Center FKA Boston City Hospital, General Surgery, 1985


  • Boston Medical Center FKA Boston City Hospital, General Surgery, 1989


  • St Mary's Medical Center, Vascular Surgery, 1991
If you see an error or omission on a provider’s profile page, please contact us.