Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Paul Christopher Duff

Medical Physician Assistant in Orange Park, FL · enumerated 2005.

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

National Provider Identifier

1821092503

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Paul Christopher Duff

Sex Male

Practice address 1564 Kingsley Ave Ste 300, Orange Park, FL, 32073

Phone (904) 264-8801

Fax (904) 621-0566

Enumeration date Jun 9, 2005

Last updated in NPPES Aug 31, 2022

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA2397 (FL) Primary

Other identifiers

Identifier	Type	State	Issuer
290016500	Medicaid	FL	-

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Paul Duff?

Paul Duff is registered in NPPES with the primary taxonomy of Medical Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Scott Schimpff Pain Medicine (Physical Medicine & Rehabilitation) Physician · Orange Park, FL NPI 1376740191 Sydney Summers Physician Assistant · Orange Park, FL NPI 1104398023

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-31.