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

Dr. Aileen Grace Guillen, MD

Individual provider Emergency Medicine Physician · NPI 1427753946

Dr. Aileen Grace Guillen, MD is an Emergency Medicine in Torrance, California. Qualified in 2023, 3 years ago. Practices as a sole proprietor. Licensed in California.

Years since qualifying
3
Licensed in
CA
In the registry since
2023
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

1000 W Carson St Bldg N-14
Torrance, CA 90502-2004
Phone: (424) 306-5400
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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 200783 (CA)

Record details

NPI number1427753946
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 3, 2023
Last updated in NPPESSeptember 4, 2025
Certification dateSeptember 4, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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