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Maxwell Stephenson

Emergency Medicine Physician in Roseville, CA · enumerated 2015 · practices at Kaiser Foundation Hospitals.

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

National Provider Identifier

1417338401

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Registry record

Entity type Individual (Type 1)
Name Maxwell Stephenson
Sex Male
Practice address 1600 Eureka Road, Medical Office Building C, 4th Floor, Roseville, CA, 95661
Phone (916) 474-6590
Enumeration date Jun 15, 2015
Last updated in NPPES Jan 30, 2023

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License A157080 (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

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.
What specialty is Maxwell Stephenson?
Maxwell Stephenson is registered in NPPES with the primary taxonomy of Emergency Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-30.