Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Patrick Michael Duffey, DPH

Pharmacist in Oklahoma City, OK · enumerated 2005.

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

National Provider Identifier

1386642411

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Registry record

Entity type Individual (Type 1)

Name Mr. Patrick Michael Duffey

Credential DPH

Sex Male

Practice address 1000 N Lee Ave, Oklahoma City, OK, 73102

Phone (405) 272-6402

Enumeration date Jul 12, 2005

Last updated in NPPES Feb 7, 2008

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 10143 (OK) Primary

183500000X Pharmacist Pharmacy Service Providers · License 23970 (TX) Secondary

183500000X Pharmacist Pharmacy Service Providers · License 8784 (AR) Secondary

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

Where does Patrick Duffey practice?

The practice location on file with NPPES is in Oklahoma City, OK. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Patrick Duffey?

The National Provider Identifier (NPI) for Patrick Duffey is 1386642411, 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 2008-02-07.