Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
William Butler, CRSW, PSS
Peer Specialist in Concord, NH · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1508749037
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Registry record
Entity type Individual (Type 1)
Name William Butler
Credential CRSW, PSS
Sex Male
Practice address 42 Pleasant St, Concord, NH, 03301
Phone (603) 226-7505
Enumeration date Jul 30, 2025
Last updated in NPPES Jul 30, 2025
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 NPI 1508749037 active?
Yes, as of the latest NPPES snapshot, NPI 1508749037 is active (record last updated 2025-07-30).
How do I verify William Butler's NPI record?
Cross-check NPI 1508749037 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
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-30.