Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Rottler, O.D.

Optometrist in O Fallon, MO · enumerated 2005.

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

National Provider Identifier

1376549378

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert Rottler

Credential O.D.

Sex Male

Practice address 2946 Highway K, O Fallon, MO, 63366

Phone (636) 240-1516

Fax (636) 272-1323

Enumeration date Jun 23, 2005

Last updated in NPPES Nov 18, 2014

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License T02819 (MO) Primary

152W00000X Optometrist Eye and Vision Services Providers · License 046008288 (IL) Secondary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
410047667	Other	MO	RAILROAD MEDICARE
314901703	Medicaid	MO	-

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

What is the NPI number for Robert Rottler?

The National Provider Identifier (NPI) for Robert Rottler is 1376549378, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Rottler practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-18.