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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Aaron Justin Small, M.D.

Gastroenterology Physician in Aiea, HI · enumerated 2008.

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

National Provider Identifier

1407015399

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Registry record

Entity type Individual (Type 1)
Name Mr. Aaron Justin Small
Credential M.D.
Sex Male
Practice address Aiea, HI, 96701
Phone (808) 486-6000
Enumeration date Jun 5, 2008
Last updated in NPPES Feb 14, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License MD-18102 (HI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Aaron Small practice?
The practice location on file with NPPES is in Aiea, HI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Aaron Small?
The National Provider Identifier (NPI) for Aaron Small is 1407015399, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-14.