Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diana C Mcnulty

Internal Medicine Physician in Freeport, IL · enumerated 2006 · practices at Jane Addams Community Mental Health Center.

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

National Provider Identifier

1215900105

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Registry record

Entity type Individual (Type 1)

Name Diana C Mcnulty

Sex Female

Practice address 1010 Fairway Dr, Freeport, IL, 61032

Phone (815) 599-7880

Enumeration date Feb 10, 2006

Last updated in NPPES Oct 23, 2017

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036103840 (IL) Primary

Other identifiers

Identifier	Type	State	Issuer
036103840	Medicaid	IL	-

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

Where does Diana Mcnulty practice?

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

What is the NPI number for Diana Mcnulty?

The National Provider Identifier (NPI) for Diana Mcnulty is 1215900105, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-10-23.