Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Darlie W Simerson, N.P.

Nurse Practitioner in Elgin, IL · enumerated 2006.

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

National Provider Identifier

1821043571

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Registry record

Entity type Individual (Type 1)

Name Darlie W Simerson

Credential N.P.

Sex Female

Practice address 77 N Airlite St, Elgin, IL, 60123

Phone (847) 595-3200

Enumeration date May 23, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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

Is NPI 1821043571 active?

Yes, as of the latest NPPES snapshot, NPI 1821043571 is active (record last updated 2007-07-08).

How do I verify Darlie Simerson's NPI record?

Cross-check NPI 1821043571 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Sajid Mehmood Critical Care Medicine (Internal Medicine) Physician · Elgin, IL NPI 1467444950 Ramalingappa Mukunda Internal Medicine Physician · Elgin, IL NPI 1972572675 Lori Mager Registered Dietitian · Elgin, IL NPI 1073579991 Jackie Daily-Caul Registered Dietitian · Elgin, IL NPI 1538125851 Mary Macdonald Registered Dietitian · Elgin, IL NPI 1235195587 Joan Young Certified Registered Nurse Anesthetist · Elgin, IL NPI 1518925544 Janine Goodsite Certified Registered Nurse Anesthetist · Elgin, IL NPI 1093763070 Associated Imaging Specialists Diagnostic Radiology Physician · Elgin, IL NPI 1366493256

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.