Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Denise M Gallagher, NURSE PRACTITIONER

Psychiatric/Mental Health Nurse Practitioner in Oak Brook, IL · enumerated 2011.

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

National Provider Identifier

1891072443

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Registry record

Entity type Individual (Type 1)

Name Denise M Gallagher

Credential NURSE PRACTITIONER

Sex Female

Practice address 2625 Butterfield Rd Ste 138s, Oak Brook, IL, 60523

Phone (630) 528-3835

Fax (630) 528-3837

Enumeration date Nov 10, 2011

Last updated in NPPES Mar 8, 2019

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 041242874 (IL) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.002501 (IL) Primary

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

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 Denise Gallagher?

Denise Gallagher is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-08.