Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Madeline Iona Hoon, DO

Internal Medicine Physician in Oregon City, OR · enumerated 2022.

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

National Provider Identifier

1144970633

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Registry record

Entity type Individual (Type 1)

Name Madeline Iona Hoon

Credential DO

Sex Female

Practice address 1500 Division St, Oregon City, OR, 97045

Phone (503) 650-6270

Enumeration date Mar 27, 2022

Last updated in NPPES Sep 10, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License DO223792 (OR) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Madeline Hoon practice?

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

What is the NPI number for Madeline Hoon?

The National Provider Identifier (NPI) for Madeline Hoon is 1144970633, 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 2025-09-10.