NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gavin John Button, MD

Orthopaedic Surgery Physician in Portland, OR · enumerated 2005.

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

National Provider Identifier

1639171259

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Gavin John Button
Credential MD
Sex Male
Practice address 5050 Ne Hoyt St Ste 340, Portland, OR, 97213
Phone (503) 234-9861
Fax (503) 238-0873
Enumeration date Aug 12, 2005
Last updated in NPPES May 15, 2026

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD25510 (OR) Primary
174400000X Specialist Other Service Providers · License MD25510 (OR) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
213374 Medicaid OR -
2232835 Medicaid WA -

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

Is NPI 1639171259 active?
Yes, as of the latest NPPES snapshot, NPI 1639171259 is active (record last updated 2026-05-15).
How do I verify Gavin Button's NPI record?
Cross-check NPI 1639171259 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-15.