MCMAHON OPTOMETRIC CORPORATION
NPI 1720024243
Optometrist in Los Angeles, CA

Q: What is Mcmahon Optometric Corporation's NPI number?

The NPI number for Mcmahon Optometric Corporation is 1720024243. It was assigned to this organization in the NPPES registry on June 22, 2006. The provider was formerly known as Garry L Regier, O.D. APC.

Q: What is Mcmahon Optometric Corporation's specialty?

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

Active since June 22, 2006

700 W 7TH ST STE G260, LOS ANGELES, CA 90017(213) 623-5196 Get Directions Write a Review

NPPES record last updated: July 25, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 25, 2025, May 29, 2025, Aug 24, 2023 and 1 more (4 updates tracked since 2017).

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About Mcmahon Optometric Corporation NPPES

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

MCMAHON OPTOMETRIC CORPORATION (NPI 1720024243), doing business as Garry L Regier, O.d. Apc, is a healthcare organization registered as an optometrist in Los Angeles, California and active in the NPI registry since June 2006. The organization lists Elizabeth Mcmahon, President, as its authorized official.

NPPES Registry Identity

NPI1720024243

Entity TypeOrganization

Primary Taxonomy152W00000X

Legal Business NameMCMAHON OPTOMETRIC CORPORATION

Location Address700 W 7TH ST STE G260Los Angeles, CA 90017-3786

Mailing Address700 W 7th St, Suite G260Los Angeles, CA 90017-3768 · (213) 623-5196

Phone(213) 623-5196

Organization SubpartNo

Authorized OfficialElizabeth McmahonPresident · (213) 623-5196

Enumeration DateJune 22, 2006

Last NPPES UpdateJuly 25, 20254 updates tracked since enumeration

NPPES CertifiedJuly 9, 2025

✔ NPI 1720024243 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 CA · OPT5029TPL

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.

700 W 7TH ST STE G260, Los Angeles, CA 90017

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Other Names 1

Former Legal Business NameGarry L Regier, O.d. Apc

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mcmahon Optometric Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Mcmahon Optometric Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Garry Regier, O.D.

Optometry

NPI 1730267790

700 W 7TH ST STE G260
Los Angeles, CA 90017

(213) 623-5196

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Mcmahon Optometric Corporation's NPI number?

The NPI number for Mcmahon Optometric Corporation is 1720024243. It was assigned to this organization in the NPPES registry on June 22, 2006. The provider was formerly known as Garry L Regier, O.D. APC.

Where is Mcmahon Optometric Corporation located?

Mcmahon Optometric Corporation is located at 700 W 7th St Ste G260, Los Angeles, CA 90017. The listed phone number is (213) 623-5196.

What is Mcmahon Optometric Corporation's specialty?

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

Is Mcmahon Optometric Corporation enrolled in Medicare?

Yes. Mcmahon Optometric Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mcmahon Optometric Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Optometry) reassigns their Medicare billing to Mcmahon Optometric Corporation. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Mcmahon Optometric Corporation accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and BlueCross BlueShield of Tennessee list Mcmahon Optometric Corporation as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mcmahon Optometric Corporation was last updated on July 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.