Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gary Tremayne, O.D.

Optometrist in Riverton, UT · enumerated 2007 · practices at Gary Tremayne, O.D. and Associates LLC.

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

National Provider Identifier

1720121700

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Gary Tremayne

Credential O.D.

Sex Male

Practice address 1543 W 12600 S Ste 104, Riverton, UT, 84065

Phone (801) 208-0734

Fax (801) 666-2020

Enumeration date Feb 15, 2007

Last updated in NPPES Oct 10, 2025

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 6029479-9934 (UT) Primary

152W00000X Optometrist Eye and Vision Services Providers · License CO2478 (CO) Secondary

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

How do I verify Gary Tremayne's NPI record?

Cross-check NPI 1720121700 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1720121700 active?

Yes, as of the latest NPPES snapshot, NPI 1720121700 is active (record last updated 2025-10-10).

Other providers at this practice address

Browse all →

Gary Tremayne, O.D. and Associates LLC Optometrist · Riverton, UT NPI 1932343191

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-10.