Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Gene Allen Keessen, DDS

Q: What is the NPI number for Gene Keessen?

The National Provider Identifier (NPI) for Gene Keessen is 1699045906, a Type 1 (individual) record in the CMS NPPES registry.

General Practice Dentistry in Lansing, IL · enumerated 2012.

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

National Provider Identifier

1699045906

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Registry record

Entity type Individual (Type 1)

Name Dr. Gene Allen Keessen

Credential DDS

Sex Male

Practice address Lansing, IL, 60438

Phone (708) 474-7717

Enumeration date Jan 3, 2012

Last updated in NPPES Jan 10, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 019013148 (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 Gene Keessen?

The National Provider Identifier (NPI) for Gene Keessen is 1699045906, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gene Keessen practice?

The practice location on file with NPPES is in Lansing, 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 2012-01-10.