Mariela Macias, MD

Dr. Mariela Macias, MD
Dr. Mariela Macias, MD


  • Geriatric Medicine
  • Medical Oncology

Areas of Expertise

  • Internal Medicine
  • Medical Oncology
480 Fourth Ave
Ste 409
Chula Vista, CA 91910

On Medical Staff At

Languages Spoken

  • Spanish
  • English


Mariela Macias, MD, has been practicing medicine since 2009. A medical oncologist and geriatric medicine specialist, she focuses primarily on breast and lung cancer, and also practices general oncology. 

Dr. Macias strives to offer the best possible cancer care for older adults while helping them maintain their quality of life and independence. She is passionate about serving the South Bay community and bringing the best oncology care to those who are often underserved and underinsured. She enjoys educating her community and dedicates her time to community engagement that informs colleagues and the public about advances in oncology.

Board Certifications

  • American Board of Internal Medicine, Medical Oncology, 2014
  • American Board of Internal Medicine, Geriatric Medicine, 2014
  • American Board of Internal Medicine, Internal Medicine, 2009

Medical Education

  • Keck School of Medicine of the University of Southern California, MD, 2006


  • Scripps Mercy Hospital San Diego, Internal Medicine, 2009


  • University of California, Los Angeles, Medical Oncology, 2014
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