Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert James Simons, O.D.

Optometrist in Helena, MT · enumerated 2014.

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

National Provider Identifier

1205255486

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Registry record

Entity type Individual (Type 1)

Name Robert James Simons

Credential O.D.

Sex Male

Practice address 550 N Montana Ave, Helena, MT, 59601

Phone (406) 443-2121

Fax (406) 443-4163

Enumeration date Apr 15, 2014

Last updated in NPPES Apr 15, 2014

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 1929 (MT) 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

What is the NPI number for Robert Simons?

The National Provider Identifier (NPI) for Robert Simons is 1205255486, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Simons practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-15.