John Gialousakis, O.D.
NPI 1184038606ActiveIndividual· Optometrist· Downers Grove, IL
Optometrist (O.D.) in Downers Grove, Illinois, trained at State University of New York - State College Optometry (class of 2014). Enrolled in Medicare as practitioner - optometry. Johnson & Johnson Vision Care, Inc. was the largest of 3 companies reporting payments in 2025, $150.00 in all, mostly consulting fees.
Overview
| NPI | 1184038606 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Jun 12, 2014 |
| Last updated in NPPES | Jun 5, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 046011186 | IL |
| Optometrist, Corneal and Contact Management | 152WC0802X | 046011186 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Optometry (IL) |
|---|
Education and affiliations
| Medical school | State University of New York - State College Optometry |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Optometry |
Medical group
- Midwestern UniversityDowners Grove, IL · 115 clinicians
Industry payments (Open Payments)
- 2025$150.00 · 3 payments from 3 companies
- 2024$300.00 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Johnson & Johnson Vision Care, Inc. | $50.00 | 1 |
| Coopervision Inc. | $50.00 | 1 |
| Alcon Vision LLC | $50.00 | 1 |
What the 2025 payments were for
- Consulting Fee$100.00 · 2 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$50.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 82 optometrists in Downers Grove · All optometrists in Illinois