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EYE CLINIC LEONID AYZENBERG MD INC
NPI 1235294398
Ophthalmology in Mt Prospect, IL

Active since December 27, 2006
303 E. RAND RD, MT PROSPECT, IL 60056(847) 537-6800(847) 556-8847 Get Directions Write a Review

NPPES record last updated: April 26, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Eye Clinic Leonid Ayzenberg Md Inc NPPES

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

EYE CLINIC LEONID AYZENBERG MD INC (NPI 1235294398) is a healthcare organization registered as an ophthalmology in Mt Prospect, Illinois and active in the NPI registry since December 2006. The organization maintains a secondary practice location in Chicago and lists Leonid Ayzenberg, President/owner, as its authorized official.

NPPES Registry Identity

NPI1235294398
Entity TypeOrganization
Primary Taxonomy207W00000X
Legal Business NameLEONID AYZENBERG, M.D. INC
Location Address303 E. RAND RDMt Prospect, IL 60056-1508
Mailing Address303 E. Rand RdMt Prospect, IL 60056-1508 · (847) 537-6800 · Fax (847) 556-8847
Phone(847) 537-6800
Fax(847) 556-8847
Organization SubpartNo
Authorized OfficialLeonid AyzenbergPresident/owner · (847) 537-6800
Enumeration DateDecember 27, 2006
Last NPPES UpdateApril 26, 2022
NPPES CertifiedApril 11, 2022
✔ NPI 1235294398 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
303 E. RAND RD, Mt Prospect, IL 60056
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Other Names 1

Other NameEye Clinic Leonid Ayzenberg Md Inc

Secondary Practice Location 1

Location 12922 W Devon AveChicago, IL 60659-1508 · Phone (847) 537-6800 · Fax (847) 556-8847

Other Identifiers 2

Other1622332IL · Bs & Bs Provider Number
Medicaid036095153IL

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.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)

Eye Clinic Leonid Ayzenberg Md Inc 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 Eye Clinic Leonid Ayzenberg MD Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Leonid Ayzenberg, M.D
Ophthalmology
NPI 1164519526
303 E. RAND RD
Mount Prospect, IL 60056
(847) 537-6800
✔ 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 Leonid Ayzenberg, M.D. Inc's NPI number?

The NPI number for Leonid Ayzenberg, M.D. Inc is 1235294398. It was assigned to this organization in the NPPES registry on December 27, 2006. The provider is also known as Eye Clinic Leonid Ayzenberg MD Inc.

Where is Leonid Ayzenberg, M.D. Inc located?

Leonid Ayzenberg, M.D. Inc is located at 303 E. Rand Rd, Mt Prospect, IL 60056. The listed phone number is (847) 537-6800.

What is Leonid Ayzenberg, M.D. Inc's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Leonid Ayzenberg, M.D. Inc enrolled in Medicare?

Yes. Leonid Ayzenberg, M.D. Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Leonid Ayzenberg, M.D. Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Ophthalmology) reassigns their Medicare billing to Leonid Ayzenberg, M.D. Inc. 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 Leonid Ayzenberg, M.D. Inc accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Leonid Ayzenberg, M.D. Inc 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 Leonid Ayzenberg, M.D. Inc was last updated on April 26, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.