Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. William S Dennett, RPH
Pharmacist in Worcester, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1588670541
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Registry record
Entity type Individual (Type 1)
Name Mr. William S Dennett
Credential RPH
Sex Male
Practice address 10 Chestnut St, Worcester, MA, 01608
Phone (508) 368-9631
Fax (508) 368-9234
Enumeration date Jul 31, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy.
About the RPH 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
Is NPI 1588670541 active?
Yes, as of the latest NPPES snapshot, NPI 1588670541 is active (record last updated 2007-07-08).
How do I verify William Dennett's NPI record?
Cross-check NPI 1588670541 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
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.