Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Frederick B Janssen, RPH, MBA
Pharmacist in Milford, DE · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1083854525
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Registry record
Entity type Individual (Type 1)
Name Frederick B Janssen
Credential RPH, MBA
Sex Male
Practice address 21 W Clarke Ave, Milford, DE, 19963
Phone (302) 430-5563
Fax (302) 430-5514
Enumeration date Feb 24, 2009
Last updated in NPPES Feb 24, 2009
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
Where does Frederick Janssen practice?
The practice location on file with NPPES is in Milford, DE. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Frederick Janssen?
The National Provider Identifier (NPI) for Frederick Janssen is 1083854525, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-24.