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

Individual provider Surgical Oncology Physician · NPI 1437220407

Louis A. Difronzo, MD is a Surgical Oncology Physician in Los Angeles, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

4733 W Sunset Blvd
Los Angeles, CA 90027-6021
Phone: (323) 783-4011
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Oncology Physician (primary) Taxonomy 2086X0206X · Licence G81895 (CA)

Record details

NPI number1437220407
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 13, 2006
Last updated in NPPESNovember 29, 2021

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