LOUIS A. DIFRONZO MD
NPI 1437220407
Surgery - Surgical Oncology in Los Angeles, CA

Q: What is Louis Difronzo's NPI number?

The NPI number for Louis Difronzo is 1437220407. It was assigned to this individual provider in the NPPES registry on November 13, 2006.

Q: What is Louis Difronzo's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.

Q: When was this NPI record last updated?

The NPPES record for Louis Difronzo was last updated on November 29, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since November 13, 2006PECOS Enrolled

4733 W SUNSET BLVD, LOS ANGELES, CA 90027(323) 783-4011 Get Directions Write a Review

NPPES record last updated: November 29, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Louis A. Difronzo Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LOUIS A. DIFRONZO MD (NPI 1437220407) is an individual surgical oncology provider in Los Angeles, California, licensed in California (G81895) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1437220407

Entity TypeIndividualMale

Primary Taxonomy2086X0206X

Provider Legal NameLOUIS A. DIFRONZOCredential: MD

Location Address4733 W SUNSET BLVDLos Angeles, CA 90027-6021

Mailing Address4733 W Sunset BlvdLos Angeles, CA 90027-6021 · (323) 783-4011

Phone(323) 783-4011

Sole ProprietorNo

Enumeration DateNovember 13, 2006

Last NPPES UpdateNovember 29, 2021

✔ NPI 1437220407 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Surgical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2086X0206X

License✔ Licensed in CA · G81895

Definition

A surgical oncologist is a well-qualified surgeon who has obtained additional training and experience in the multidisciplinary approach to the prevention, diagnosis, treatment, and rehabilitation of cancer patients, and devotes a major portion of his or her professional practice to these activities and cancer research.

4733 W SUNSET BLVD, Los Angeles, CA 90027

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Louis A. Difronzo Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90027 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$187.60 typical visit price

range $62.96 – $187.60

Typical copayment $46.90 (range $15.74 – $46.90)

Most-billed visit code 99205

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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