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

Ana Lopez-O'Sullivan, MD

Individual provider Emergency Medicine Physician · NPI 1235363193

Ana Lopez-O'Sullivan, MD is an Emergency Medicine in Torrance, California. Graduated from University of California, Geffen School of Medicine in 2009, 17 years ago. Practices with Raleigh Emergency Medicine Associates Inc, a 26-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
17
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2009
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

3105 Lomita Blvd
Torrance, CA 90505-5108
Phone: (310) 784-4997
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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 A114378 (CA)

Record details

NPI number1235363193
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 7, 2009
Last updated in NPPESJune 16, 2014

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Raleigh Emergency Medicine Associates Inc — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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