Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William Oliver Warburton, D.C.
Chiropractor in Mercer Island, WA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1487854915
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Registry record
Entity type Individual (Type 1)
Name Dr. William Oliver Warburton
Credential D.C.
Sex Male
Practice address 7605 Se 27th St Ste 103, Mercer Island, WA, 98040
Phone (206) 275-4870
Fax (206) 275-4876
Enumeration date Jul 23, 2007
Last updated in NPPES Sep 18, 2009
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0207296 | Other | WA | L & I PROVIDER |
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 William Warburton practice?
The practice location on file with NPPES is in Mercer Island, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Warburton?
The National Provider Identifier (NPI) for William Warburton is 1487854915, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-18.