NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ronald E Longenbaugh, O.D.

Optometrist in Columbia City, IN · enumerated 2007 · practices at Columbia City Optometry, P.C..

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

National Provider Identifier

1043366057

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Ronald E Longenbaugh
Credential O.D.
Sex Male
Practice address 512 N Line Street, Columbia City, IN, 46725
Phone (260) 244-6361
Fax (260) 244-3067
Enumeration date Jan 25, 2007
Last updated in NPPES Feb 4, 2014

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 18002242A (IN) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Ronald Longenbaugh practice?
The practice location on file with NPPES is in Columbia City, IN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ronald Longenbaugh?
The National Provider Identifier (NPI) for Ronald Longenbaugh is 1043366057, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-04.