Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Douglas M Keller, DMD

Dentist in Manteno, IL · enumerated 2018 · practices at Karl A Keller DDS PC.

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

National Provider Identifier

1316432909

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Registry record

Entity type Individual (Type 1)

Name Dr. Douglas M Keller

Credential DMD

Sex Male

Practice address 312 W Division St, Manteno, IL, 60950

Phone (815) 468-6800

Enumeration date Jun 26, 2018

Last updated in NPPES Jun 26, 2018

Taxonomy & licenses

122300000X Dentist Dental Providers · License 019.031689 (IL) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

Where does Douglas Keller practice?

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

What is the NPI number for Douglas Keller?

The National Provider Identifier (NPI) for Douglas Keller is 1316432909, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Karl A Keller DDS PC Dentist · Manteno, IL NPI 1023178985

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-26.