Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aaron Thomas Young

Nephrology Physician in Vacaville, CA · enumerated 2018.

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

National Provider Identifier

1942705827

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Registry record

Entity type Individual (Type 1)

Name Aaron Thomas Young

Sex Male

Practice address 1360 Burton Dr Ste 160, Vacaville, CA, 95687

Phone (707) 446-4379

Enumeration date Mar 24, 2018

Last updated in NPPES Jun 26, 2023

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License A184848 (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 Aaron Young?

Aaron Young is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-26.