Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Dawn Ella Diehnelt, DDS

General Practice Dentistry in Arlington Heights, IL · enumerated 2007 · practices at E L O Dental PC.

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

National Provider Identifier

1891841078

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Registry record

Entity type Individual (Type 1)

Name Dr. Dawn Ella Diehnelt

Credential DDS

Sex Female

Practice address 1328 W Algonquin Rd, Arlington Heights, IL, 60005

Phone (847) 818-0700

Fax (847) 818-0705

Enumeration date Jan 28, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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

What is the NPI number for Dawn Diehnelt?

The National Provider Identifier (NPI) for Dawn Diehnelt is 1891841078, a Type 1 (individual) record in the CMS NPPES registry.

Where does Dawn Diehnelt practice?

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

Other providers at this practice address

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E L O Dental PC Orthodontics and Dentofacial Orthopedics Dentistry · Arlington Hts, IL NPI 1144654468

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