Eye Clinic Leonid Ayzenberg MD INC – Optometrist, NPI 1235294398
Optometrist
Main info
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for Eye Clinic Leonid Ayzenberg MD INC
2922, West Devon Avenue, Little India, West Ridge, Chicago, Rogers Park Township, Cook County, Illinois, 60659, United States
CHICAGO, IL 606591508
Phone: (773) 283-7700
Fax: (773) 743-5508
Type: Mailing
2922 W Devon Ave
Chicago, IL 606591508
Phone: (847) 537-6800
Fax: (847) 556-8847
Type: Location
303 E. RAND RD
MT PROSPECT, IL 600561508
Phone: (847) 537-6800
Fax: (847) 556-8847
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-08-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Past revalidation due date
Earliest CMS due date was 2025-07-31 (313 days ago).
Enrollment records
1
Earliest due date
2025-07-31
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| O20090807000368 | O | Clinic/Group Practice | IL | 2025-07-31 |
What to do next
- Verify current status on the CMS Revalidation Lookup Tool immediately.
- Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
- Overdue revalidation can lead to deactivation of Medicare billing privileges.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 60659)
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