Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Douglas Duffy, PAC

Surgical Physician Assistant in Ada, OK · enumerated 2006 · practices at David Hubler MD Pllc.

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

National Provider Identifier

1184707457

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Registry record

Entity type Individual (Type 1)

Name Mr. Douglas Duffy

Credential PAC

Sex Male

Practice address 520 N Monte Vista St Ste C, Ada, OK, 74820

Phone (580) 272-0018

Fax (580) 272-0657

Enumeration date Oct 23, 2006

Last updated in NPPES Aug 26, 2019

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 5601002737 (MI) Secondary

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 407 (OK) Primary

Other identifiers

Identifier	Type	State	Issuer
200194390A	Medicaid	OK	-

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 NPI 1184707457 active?

Yes, as of the latest NPPES snapshot, NPI 1184707457 is active (record last updated 2019-08-26).

How do I verify Douglas Duffy's NPI record?

Cross-check NPI 1184707457 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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David Hubler MD Pllc Orthopaedic Surgery Physician · Ada, OK NPI 1578729737

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-08-26.