Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Timothy R Vaughan, LMP
Specialist in Mercer Island, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558426239
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Registry record
Entity type Individual (Type 1)
Name Mr. Timothy R Vaughan
Credential LMP
Sex Male
Practice address 7605 Se 27th St, Suite 153, Mercer Island, WA, 98040
Phone (206) 275-4870
Fax (206) 275-4876
Enumeration date Dec 24, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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
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 Timothy Vaughan?
Timothy Vaughan is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.