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

Dr. Daniel Charles Langhorst, O.D.

Optometrist in Haslett, MI · enumerated 2012 · practices at Advanced Audiology, LLC.

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

National Provider Identifier

1447509609

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Registry record

Entity type Individual (Type 1)
Name Dr. Daniel Charles Langhorst
Credential O.D.
Sex Male
Practice address Haslett, MI, 48840
Phone (517) 339-4100
Enumeration date Sep 4, 2012
Last updated in NPPES Nov 15, 2016

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 4901004703 (MI) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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.

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Frequently asked questions

Where does Daniel Langhorst practice?
The practice location on file with NPPES is in Haslett, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Daniel Langhorst?
The National Provider Identifier (NPI) for Daniel Langhorst is 1447509609, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-15.