LAYNE R. CHRISTENSEN OPTOMETRIC CORPORATION
NPI 1841341195
Optometrist in Grass Valley, CA

Q: What is Layne R. Christensen Optometric Corporation's specialty?

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

Active since January 15, 2007

2116 NEVADA CITY HWY, GRASS VALLEY, CA 95945(530) 273-4451(530) 272-5408 Get Directions Write a Review

NPPES record last updated: June 16, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Layne R. Christensen Optometric Corporation NPPES

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

LAYNE R. CHRISTENSEN OPTOMETRIC CORPORATION (NPI 1841341195) is a healthcare organization registered as an optometrist in Grass Valley, California and active in the NPI registry since January 2007. The organization lists Layne R. Christensen, Optometrist, as its authorized official.

NPPES Registry Identity

NPI1841341195

Entity TypeOrganization

Primary Taxonomy152W00000X

Legal Business NameLAYNE R. CHRISTENSEN OPTOMETRIC CORPORATION

Location Address2116 NEVADA CITY HWYGrass Valley, CA 95945-7702

Mailing Address2116 Nevada City HwyGrass Valley, CA 95945-7702 · (530) 273-4451 · Fax (530) 268-2054

Phone(530) 273-4451

Fax(530) 272-5408

Organization SubpartNo

Authorized OfficialLayne R. ChristensenOptometrist · (530) 273-4451

Enumeration DateJanuary 15, 2007

Last NPPES UpdateJune 16, 2025

NPPES CertifiedJune 16, 2025

✔ NPI 1841341195 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

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.

2116 NEVADA CITY HWY, Grass Valley, CA 95945

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to Layne R. Christensen Optometric Corporation, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Layne Christensen, O.D.

Optometry

NPI 1730125477

2116 NEVADA CITY HWY
Grass Valley, CA 95945

(530) 273-4451

✔ PECOS✔ Accepts MedicareSame address

Joshua Baer, O.D.

Optometry

NPI 1881889137

3840 EL DORADO HILLS BLVD STE 103
El Dorado Hills, CA 95762

(916) 618-4832

✔ PECOS✔ Accepts Medicare40 mi

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 Layne R. Christensen Optometric Corporation's NPI number?

The NPI number for Layne R. Christensen Optometric Corporation is 1841341195. It was assigned to this organization in the NPPES registry on January 15, 2007.

Where is Layne R. Christensen Optometric Corporation located?

Layne R. Christensen Optometric Corporation is located at 2116 Nevada City Hwy, Grass Valley, CA 95945. The listed phone number is (530) 273-4451.

What is Layne R. Christensen Optometric Corporation's specialty?

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

Is Layne R. Christensen Optometric Corporation enrolled in Medicare?

Yes. Layne R. Christensen Optometric Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Layne R. Christensen Optometric Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Optometry, reassign their Medicare billing to Layne R. Christensen 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. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Layne R. Christensen Optometric Corporation was last updated on June 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.