Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Charles W Larsen, RPH
Pharmacist in Littleton, CO · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538469036
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Registry record
Entity type Individual (Type 1)
Name Charles W Larsen
Credential RPH
Sex Male
Practice address 7500 S Pierce St, Littleton, CO, 80128
Phone (303) 972-8600
Fax (303) 979-0798
Enumeration date Oct 30, 2010
Last updated in NPPES Oct 30, 2010
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
What is the NPI number for Charles Larsen?
The National Provider Identifier (NPI) for Charles Larsen is 1538469036, a Type 1 (individual) record in the CMS NPPES registry.
Where does Charles Larsen practice?
The practice location on file with NPPES is in Littleton, CO. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-30.