Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Oscar F. Casillas, MD

Individual provider Emergency Medicine Physician · NPI 1902930399

Oscar F. Casillas, MD is an Emergency Medicine in Santa Monica, California. Graduated from University of California, San Diego School of Medicine in 2004, 22 years ago. Practices with Capital Hospitalist Medical Group Inc, a 31-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
22
Trained at
University of California, San Diego School of Medicine
Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1250 16th St Emergency Dept
Santa Monica, CA 90404-1249
Phone: (424) 259-8405
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A93263 (CA)

Record details

NPI number1902930399
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 15, 2007
Last updated in NPPESJune 26, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Capital Hospitalist Medical Group Inc — 31 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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