Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Katherine Brooke Willis, L.AC, MAOM
Acupuncturist in Corvallis, OR · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649560939
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Registry record
Entity type Individual (Type 1)
Name Katherine Brooke Willis
Credential L.AC, MAOM
Sex Female
Practice address 426 Nw 4th St, Corvallis, OR, 97330
Phone (541) 602-8172
Enumeration date Apr 8, 2011
Last updated in NPPES Mar 10, 2015
Taxonomy & licenses
LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture.
About the LAC 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.
Frequently asked questions
Where does Katherine Willis practice?
The practice location on file with NPPES is in Corvallis, OR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Katherine Willis?
The National Provider Identifier (NPI) for Katherine Willis is 1649560939, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-10.