Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tanya Tanzillo, CNP

Family Nurse Practitioner in Mchenry, IL · enumerated 2006.

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

National Provider Identifier

1114032802

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Registry record

Entity type Individual (Type 1)

Name Tanya Tanzillo

Credential CNP

Sex Female

Practice address 2507 N Richmond Rd, Mchenry, IL, 60051

Phone (815) 338-6600

Fax (815) 759-4078

Enumeration date Aug 20, 2006

Last updated in NPPES Oct 22, 2018

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209005985 (IL) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209005985 (IL) Primary

Other identifiers

Identifier	Type	State	Issuer
209005985	Other	IL	STATE LICENSE

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

How do I verify Tanya Tanzillo's NPI record?

Cross-check NPI 1114032802 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1114032802 active?

Yes, as of the latest NPPES snapshot, NPI 1114032802 is active (record last updated 2018-10-22).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-22.