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Aaron Phillips

Pediatric Cardiology Physician in Palo Alto, CA · enumerated 2017.

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

National Provider Identifier

1821523002

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Registry record

Entity type Individual (Type 1)
Name Aaron Phillips
Sex Male
Practice address 725 Welch Rd, Palo Alto, CA, 94304
Phone (650) 497-8000
Enumeration date Apr 26, 2017
Last updated in NPPES Apr 28, 2024

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License A169422 (CA) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License A169422 (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 specialty is Aaron Phillips?
Aaron Phillips is registered in NPPES with the primary taxonomy of Pediatric Cardiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-28.