Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Anne Didier
Nurse Practitioner in Hinsdale, IL · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427696855
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Registry record
Entity type Individual (Type 1)
Name Anne Didier
Sex Female
Practice address 40 South Clay St., Suite 200, West Building, Hinsdale, IL, 60521
Phone (630) 364-7850
Enumeration date Dec 16, 2019
Last updated in NPPES Jan 10, 2020
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209019922 (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
Where does Anne Didier practice?
The practice location on file with NPPES is in Hinsdale, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Anne Didier?
The National Provider Identifier (NPI) for Anne Didier is 1427696855, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-10.