Konstantina Kalas, OD
NPI 1831750652ActiveIndividual· Optometrist· Downers Grove, IL
Optometrist (OD) in Downers Grove, Illinois, trained at Indiana University - School of Optometry (class of 2020). Mostly services rather than prescriptions: Medicare paid $1,877 for 25 patients in 2024, with only 15 Part D claims. Dompe US, Inc. was the largest of 7 companies reporting payments in 2025, $709.45 in all, mostly food and beverage.
Overview
| NPI | 1831750652 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Jun 24, 2019 |
| Last updated in NPPES | Oct 20, 2022 |
| Certified by provider | Oct 20, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 046011421 | IL |
| Optometrist | 152W00000X | 18004170A | IN |
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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 25 |
|---|---|
| Services billed | 50 across 8 procedure codes |
| Paid by Medicare | $1,877 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15 · 24 30-day fills |
|---|---|
| Total drug cost | $1,771 |
Education and affiliations
| Medical school | Indiana University - School of Optometry |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Optometry |
Medical group
- Midwestern UniversityDowners Grove, IL · 115 clinicians
Industry payments (Open Payments)
- 2025$709.45 · 12 payments from 7 companies
- 2024$602.27 · 11 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dompe US, Inc. | $139.83 | 2 |
| Abbvie Inc. | $135.03 | 2 |
| Johnson & Johnson Vision Care, Inc. | $100.00 | 2 |
| Coopervision Inc. | $100.00 | 2 |
| Alcon Vision LLC | $100.00 | 2 |
What the 2025 payments were for
- Food and Beverage$409.45 · 6 payments
- Consulting Fee$200.00 · 4 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$100.00 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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