Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Massimo D'Apuzzo, MD PHD

Neuropathology Physician in Duarte, CA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1427104462

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Registry record

Entity type Individual (Type 1)

Name Dr. Massimo D'Apuzzo

Credential MD PHD

Sex Male

Practice address 1500 E Duarte Rd, Duarte, CA, 91010

Phone (626) 359-8111

Enumeration date Jan 25, 2007

Last updated in NPPES Dec 7, 2020

Taxonomy & licenses

207ZP0101X Anatomic Pathology Physician Allopathic & Osteopathic Physicians · License A88682 (CA) Secondary

207ZN0500X Neuropathology Physician Allopathic & Osteopathic Physicians · License A88682 (CA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Massimo D'Apuzzo?

The National Provider Identifier (NPI) for Massimo D'Apuzzo is 1427104462, a Type 1 (individual) record in the CMS NPPES registry.

Where does Massimo D'Apuzzo practice?

The practice location on file with NPPES is in Duarte, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-07.