RonaldCastilloTejadaJr.MD

Internal Medicine • Irvine, CA

Hospital Medicine/Hospitalist

Hospitalist at Optum

Join to view full profile

Dr. Tejada is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
Connect with colleagues in the same hospital or clinic.
Read the latest clinical news, personalized to your specialty.

See Dr. Tejada's full profile

Already have an account?

Office
11 Technology Dr
Suite 100
Irvine, CA 92618
Phone+1 855-206-6764

Education & Training

Loyola University Medical Center/Trinity-Mercy ChicagoResidency, Internal Medicine, 2009 - 2012
University of the East College of MedicineClass of 2004

Certifications & Licensure

CA State Medical License 2011 - 2025
IL State Medical License 2012 - 2023
American Board of Internal Medicine Internal Medicine