Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Julia Jane Irwin, M.D.

Psychiatry Physician in Norman, OK · enumerated 2006.

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

National Provider Identifier

1306951124

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Registry record

Entity type Individual (Type 1)

Name Julia Jane Irwin

Credential M.D.

Sex Female

Practice address 820 Wall St, Norman, OK, 73069

Phone (405) 928-2044

Fax (405) 928-2049

Enumeration date Aug 20, 2006

Last updated in NPPES Jan 18, 2013

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 20319 (OK) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
P00037558	Other	OK	RAILROAD MEDICARE
610936400	Other	OK	FEDERAL WORKERS COMP

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

How do I verify Julia Irwin's NPI record?

Cross-check NPI 1306951124 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1306951124 active?

Yes, as of the latest NPPES snapshot, NPI 1306951124 is active (record last updated 2013-01-18).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-18.