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

Patricia O'Leary, APN

Adult Psychiatric/Mental Health Clinical Nurse Specialist in Arlington Heights, IL · enumerated 2007.

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

National Provider Identifier

1376691675

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Patricia O'Leary

Credential APN

Sex Female

Practice address Arlington Heights, IL, 60004

Phone (708) 817-5787

Fax (847) 590-8747

Enumeration date Jan 5, 2007

Last updated in NPPES Jul 21, 2022

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

Taxonomy & licenses

364SP0809X Adult Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 209002059 (IL) Primary

Other identifiers

Identifier	Type	State	Issuer
0001626924	Other	IL	BLUE CROSS AND BLUE SHIEL

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 Patricia O'Leary practice?

The practice location on file with NPPES is in Arlington Heights, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Patricia O'Leary?

The National Provider Identifier (NPI) for Patricia O'Leary is 1376691675, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.