Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diane E Ulrich, D.D.S., M.S.

Q: What is the NPI number for Diane Ulrich?

The National Provider Identifier (NPI) for Diane Ulrich is 1649428756, a Type 1 (individual) record in the CMS NPPES registry.

Orthodontics and Dentofacial Orthopedics Dentistry in Lincoln, IL · enumerated 2008.

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

National Provider Identifier

1649428756

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Registry record

Entity type Individual (Type 1)

Name Diane E Ulrich

Credential D.D.S., M.S.

Sex Female

Practice address 400 N. Chicago St, Lincoln, IL, 62656

Phone (217) 732-1073

Enumeration date Sep 3, 2008

Last updated in NPPES Sep 3, 2008

Taxonomy & licenses

122300000X Dentist Dental Providers · License 019.024323 (IL) Secondary

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 021.001840 (IL) 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 Diane Ulrich?

The National Provider Identifier (NPI) for Diane Ulrich is 1649428756, a Type 1 (individual) record in the CMS NPPES registry.

Where does Diane Ulrich practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-03.