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

Duy To

Pharmacist in York, PA · enumerated 2020 · practices at Weis Markets Inc.

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

National Provider Identifier

1699390096

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Registry record

Entity type Individual (Type 1)
Name Duy To
Sex Male
Practice address York, PA, 17402
Enumeration date Jun 11, 2020
Last updated in NPPES Jun 11, 2020

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

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RP454044 (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.

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Frequently asked questions

What is the NPI number for Duy To?
The National Provider Identifier (NPI) for Duy To is 1699390096, a Type 1 (individual) record in the CMS NPPES registry.
Where does Duy To practice?
The practice location on file with NPPES is in York, PA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-11.