ROBERT A LARSON OD PC
NPI 1881883585
Clinic/Center in Plainfield, IL

Active since October 18, 2007
15420 S RTE 59, PLAINFIELD, IL 60544(815) 436-8955(815) 496-8745 Get Directions Write a Review

NPPES record last updated: October 17, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Robert A Larson Od Pc NPPES

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

ROBERT A LARSON OD PC (NPI 1881883585) is a healthcare organization registered as a clinic/center in Plainfield, Illinois and active in the NPI registry since October 2007. The organization lists Robert Aric Larson, Owner, as its authorized official.

NPPES Registry Identity

NPI1881883585
Entity TypeOrganization
Primary Taxonomy261Q00000X
Legal Business NameROBERT A LARSON OD PC
Location Address15420 S RTE 59Plainfield, IL 60544-1984
Mailing Address15420 S Rte 59Plainfield, IL 60544-1984 · (815) 436-8955 · Fax (815) 496-8745
Fax(815) 496-8745
Organization SubpartNo
Authorized OfficialRobert Aric LarsonOwner · (815) 436-8955
Enumeration DateOctober 18, 2007
Last NPPES UpdateOctober 17, 2008
✔ NPI 1881883585 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/CenterAmbulatory Health Care Facilities
Taxonomy Code261Q00000X
Definition
A facility or distinct part of one used for the diagnosis and treatment of outpatients. Clinic/Center is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health).
15420 S RTE 59, Plainfield, IL 60544

Other Identifiers 2

Other0142300001IL · Ptan
Medicare NSC0142300001IL

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)

Robert A Larson Od Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by October 31, 2026

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
StateIllinoisEnrollment IDO20150626000635DME · Physician - OptometristDue dateOctober 31, 2026
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 Robert A Larson Od PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Optometry
NPI 1568443091
15420 S ROUTE 59 STE #7
Plainfield, IL 60544
(815) 436-8955
✔ PECOS0.1 mi

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 3

Medicare supplier enrollment and the product categories Robert A Larson Od PC carries, from the Medicare DMEPOS supplier directory.

Robert A Larson Od PC

DMEPOS supplier · Plainfield, IL
⋮

Does not accept Medicare assignment

Robert A Larson Od PC 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)20681885
Medicare Participant SinceJanuary 2, 1940
Supplier Location15420S Route 59Plainfield, IL 60544
Supplier Specialties
Optometrist

Medicare Product Categories

Prosthetic Lenses: Conventional Eyeglasses
Conventional Eyeglasses
Prosthetic Lenses: Conventional Contact Lenses
Conventional Contact Lenses
Prosthetic Lenses: Prosthetics Cataract Lenses
Cataract Eyeglasses
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 Robert A Larson Od PC's NPI number?

The NPI number for Robert A Larson Od PC is 1881883585. It was assigned to this organization in the NPPES registry on October 18, 2007.

Where is Robert A Larson Od PC located?

Robert A Larson Od PC is located at 15420 S Rte 59, Plainfield, IL 60544. The listed phone number is (815) 436-8955.

What is Robert A Larson Od PC's specialty?

The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.

Is Robert A Larson Od PC enrolled in Medicare?

Yes. Robert A Larson Od PC is registered in the Medicare PECOS enrollment system.

When is Robert A Larson Od PC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare DME enrollment for this organization (Illinois, Physician - Optometrist) is due for revalidation by October 31, 2026. 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 Robert A Larson Od PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Optometry) reassigns their Medicare billing to Robert A Larson Od PC. 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 Robert A Larson Od PC accept Medicare assignment for medical equipment?

No. As a Medicare medical equipment supplier, Robert A Larson Od PC 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 Robert A Larson Od PC was last updated on October 17, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.