Physician Profile

Aileen G. Guillen, MD

Unclaimed Profile

About Dr. Guillen

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Education & Training

Medical School Other Graduated: 2023

Specialty

Emergency Medicine (Primary)

Credentials & Licensing

CA license200783
NPI1427753946
NPI issued04/03/2023

License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.

Medicare information

Accepts Medicare assignmentSometimes (reported per claim)
Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What is Dr. Guillen's specialty?

Dr. Guillen is an emergency physician in Torrance, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Emergency Medicine”.

NPI registry

Where can I find Dr. Guillen?

Dr. Guillen is listed at 1000 W Carson St Bldg N-14, Torrance, CA 90502. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Dr. Guillen?

The number on file is (424) 306-5400. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is Dr. Guillen's NPI number?

Dr. Guillen's National Provider Identifier is 1427753946. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

What is Dr. Guillen's medical education?

Dr. Guillen attended Other, graduating in 2023. This comes from the CMS National Downloadable File.

CMS public data

How long has Dr. Guillen been practicing?

Dr. Guillen has 3 years experience. Calculated from a graduation year of 2023, reported in the CMS National Downloadable File.

CMS public data

Has Dr. Guillen confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Guillen. If this is you, claiming it is free.

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.