KARL M. LARSEN,O.D., LTD.
NPI 1407159940
Optometrist in Las Vegas, NV

Q: What is Karl M. Larsen,o.D., Ltd.'s NPI number?

The NPI number for Karl M. Larsen,o.D., Ltd. is 1407159940. It was assigned to this organization in the NPPES registry on December 6, 2010.

Q: What is Karl M. Larsen,o.D., Ltd.'s specialty?

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

Active since December 06, 2010

8660 W CHEYENNE AVE STE 120, LAS VEGAS, NV 89129(702) 790-2400(702) 790-2441 Get Directions Write a Review

NPPES record last updated: January 17, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Karl M. Larsen,o.d., Ltd. NPPES

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

KARL M. LARSEN,O.D., LTD. (NPI 1407159940) is a healthcare organization registered as an optometrist in Las Vegas, Nevada and active in the NPI registry since December 2010. The organization lists Karl Martell Larsen, President, as its authorized official.

NPPES Registry Identity

NPI1407159940

Entity TypeOrganization

Primary Taxonomy152W00000X

Legal Business NameKARL M. LARSEN,O.D., LTD.

Location Address8660 W CHEYENNE AVE STE 120Las Vegas, NV 89129-7455

Mailing Address8660 W Cheyenne Ave Ste 120Las Vegas, NV 89129-7455 · (702) 790-2400 · Fax (702) 790-2441

Phone(702) 790-2400

Fax(702) 790-2441

Organization SubpartNo

Authorized OfficialKarl Martell LarsenPresident · (702) 790-2400

Enumeration DateDecember 6, 2010

Last NPPES UpdateJanuary 17, 2018

✔ NPI 1407159940 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.

8660 W CHEYENNE AVE STE 120, Las Vegas, NV 89129

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Other Identifiers 1

Medicaid25-02549NV

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karl M. Larsen,o.d., Ltd. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date

StateNevadaEnrollment IDO20101214000231Non-DME Part B · Clinic/Group PracticeDue dateFebruary 28, 2027

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Karl M. Larsen,o.D., Ltd., which bills Medicare for the services this clinician delivers.

Clinician (1)

Karl Larsen, O.D.

Optometry

NPI 1235226523

8660 W CHEYENNE AVE STE 120
Las Vegas, NV 89129

(702) 259-3937

✔ PECOSSame address

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

Medical Equipment Supplier Medicare DMEPOS 2

Medicare supplier enrollment and the product categories Karl M Larsen Od carries, from the Medicare DMEPOS supplier directory.

Karl M Larsen Od

DMEPOS supplier · Las Vegas, NVOperated by Karl M. Larsen,o.D., Ltd.

⋮

Does not accept Medicare assignment

Karl M Larsen Od has not agreed to accept the Medicare-approved amount as full payment for covered equipment and supplies. Medicare patients may be charged more than the Medicare-approved amount; confirm the expected cost with the supplier before ordering.

PTAN (Medicare Supplier Number)20680691

Medicare Participant SinceJanuary 3, 1967

Supplier Location8660 W Cheyenne Ave Ste 120Las Vegas, NV 89129

Phone(702) 790-2400

Supplier Specialties

Optometrist

Medicare Product Categories

Prosthetic Lenses: Conventional Eyeglasses

Conventional Eyeglasses

Prosthetic Lenses: Conventional Contact Lenses

Conventional Contact Lenses

Product categories are from the Medicare DMEPOS supplier directory. Contact the supplier to confirm current availability of specific items.

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 Karl M. Larsen,o.D., Ltd.'s NPI number?

The NPI number for Karl M. Larsen,o.D., Ltd. is 1407159940. It was assigned to this organization in the NPPES registry on December 6, 2010.

Where is Karl M. Larsen,o.D., Ltd. located?

Karl M. Larsen,o.D., Ltd. is located at 8660 W Cheyenne Ave Ste 120, Las Vegas, NV 89129. The listed phone number is (702) 790-2400.

What is Karl M. Larsen,o.D., Ltd.'s specialty?

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

Is Karl M. Larsen,o.D., Ltd. enrolled in Medicare?

Yes. Karl M. Larsen,o.D., Ltd. is registered in the Medicare PECOS enrollment system.

When is Karl M. Larsen,o.D., Ltd.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Nevada, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Karl M. Larsen,o.D., Ltd.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Optometry) reassigns their Medicare billing to Karl M. Larsen,o.D., Ltd.. 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.

Does Karl M. Larsen,o.D., Ltd. accept Medicare assignment for medical equipment?

No. As a Medicare medical equipment supplier, Karl M Larsen Od does not accept Medicare assignment for equipment and supplies, so patients may be charged more than the Medicare-approved amount. Confirm the expected cost with the supplier before ordering.

When was this NPI record last updated?

The NPPES record for Karl M. Larsen,o.D., Ltd. was last updated on January 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.