Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Spencer W Crook, DMD MS
Endodontics in Peoria, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1437124278
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Registry record
Entity type Individual (Type 1)
Name Spencer W Crook
Credential DMD MS
Sex Male
Practice address 7972 W Thunderbird Rd, Suite #103, Peoria, AZ, 85381
Phone (623) 979-1313
Enumeration date Feb 22, 2006
Last updated in NPPES Dec 16, 2015
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
What specialty is Spencer Crook?
Spencer Crook is registered in NPPES with the primary taxonomy of Endodontics. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-16.