Maria Olivia Ortiz Castillo, M.D.

626-256-4673
Olivia Castillo ,Hospitalist
Hospitalist
Clinical Expertise
Hospital Medicine
Appointments
Assistant Clinical Professor, Division of Hospital Medicine, Department of Medicine
Clinical Teams
Hospital Medicine
I am honored that patients trust me to help them in their most vulnerable state.
 
Maria Olivia Ortiz Castillo, M.D., is a board-certified internist who is dedicated to providing the best possible care to patients when they enter the hospital, perhaps the most challenging time in their lives. Dr. Castillo has a decade of experience as a trained hospitalist at facilities across Southern California, and she relishes the challenge “to create strategic plans to improve health and health care outcomes for patients with complex conditions.”
 
Dr. Castillo received her medical degree from UCLA’s David Geffen School of Medicine and continued her training with an internship and residency at Huntington Memorial Hospital in Pasadena, California.
 
Dr. Castillo prides herself on the relationships she forms with her patients. She’s delighted to join the City of Hope family. “Working with a team on the cutting edge of science looking for novel therapies to aid in this unique population is incredibly rewarding.”
Location
Education & Experience
Board Certifications

  • 2013, Board certified in internal medicine

  • 2012, Licensed physician in California

Degrees

  • 2010, M.D., Medicine, David Geffen School of Medicine, UCLA, Los Angeles, CA

  • 2004, B.S., Biology, University of California Davis, Davis, CA

Residency

  • 2010-2013, Internal Medicine, Huntington Memorial Hospital, Pasadena, CA

Professional Experience

  • 2020-present, Hospitalist, Department of Medicine, Division of Hospital Medicine, City of Hope, Duarte, CA

  • 2019-2020, Hospitalist, Locums, Fresno, CA

  • 2018-2019, Primary Care, Essential Medical Clinic, Los Angeles, CA

  • 2013-2018, Hospitalist, Healthcare Partners, Los Angeles, CA

Publications
  • Oak S, et. al. Peroxisome proliferator- activated receptor-gamma agonist improves skeletal muscle insulin signaling in the pregestational intrauterine growth- restricted rat offspring. Am J Physiol Endocrinol Metab. 2009 Aug;297 (2):E514-24