Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. STEVEN ROGER SEM O.D.
NPI 1427027853
Optometrist in Great Falls, MT

Q: What is Steven Sem's NPI number?

The NPI number for Steven Sem is 1427027853. It was assigned to this individual provider in the NPPES registry on March 16, 2006.

Q: What is Steven Sem's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for Steven Sem was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 16, 2006

411 SWEETGRASS CT, GREAT FALLS, MT 59405(406) 454-2020 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Dr. Steven Roger Sem O.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. STEVEN ROGER SEM O.D. (NPI 1427027853) is an individual optometrist in Great Falls, Montana, licensed in Montana (383) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1427027853

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameDR. STEVEN ROGER SEMCredential: O.D.

Location Address411 SWEETGRASS CTGreat Falls, MT 59405-1325

Mailing Address411 Sweetgrass CtGreat Falls, MT 59405-1325 · (406) 454-2020

Phone(406) 454-2020

Sole ProprietorNo

Enumeration DateMarch 16, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1427027853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in MT · 383

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

411 SWEETGRASS CT, Great Falls, MT 59405

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Steven Sem's NPI number?

The NPI number for Steven Sem is 1427027853. It was assigned to this individual provider in the NPPES registry on March 16, 2006.

Where is Steven Sem located?

Steven Sem practices at 411 Sweetgrass Ct, Great Falls, MT 59405. The listed phone number is (406) 454-2020.

What is Steven Sem's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

When was this NPI record last updated?

The NPPES record for Steven Sem was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.