Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Anne Marie Lillwitz
Nurse Practitioner in Geneva, IL · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1609041946
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Registry record
Entity type Individual (Type 1)
Name Anne Marie Lillwitz
Sex Female
Practice address 2800 Keslinger Rd Ste 160, Geneva, IL, 60134
Phone (630) 232-7200
Fax (630) 232-2288
Enumeration date Apr 28, 2008
Last updated in NPPES Mar 7, 2023
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 277000507 (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.
Frequently asked questions
How do I verify Anne Marie Lillwitz's NPI record?
Cross-check NPI 1609041946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1609041946 active?
Yes, as of the latest NPPES snapshot, NPI 1609041946 is active (record last updated 2023-03-07).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.