Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Christopher Jay Duffy

Pharmacist in Sharon Hill, PA · enumerated 2016 · practices at Universal Pharmacy Services, LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1790135366

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher Jay Duffy

Sex Male

Practice address Sharon Hill, PA, 19079

Phone (800) 906-7798

Fax (877) 381-3806

Enumeration date Jun 15, 2016

Last updated in NPPES Jun 15, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RP438772 (PA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Christopher Duffy?

The National Provider Identifier (NPI) for Christopher Duffy is 1790135366, a Type 1 (individual) record in the CMS NPPES registry.

Where does Christopher Duffy practice?

The practice location on file with NPPES is in Sharon Hill, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Damon Albert Pharmacist · Sharon Hill, PA NPI 1407206907 Universal Pharmacy Services, LLC Specialty Pharmacy · Sharon Hill, PA NPI 1619596475

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-15.