Nicholas Karjun Chan, M.D.
NPI 1396132403ActiveIndividual· Ophthalmology· Oak Lawn, IL
Ophthalmology (M.D.) in Oak Lawn, Illinois, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $361,552 for 2,646 claims, against $218,070 paid for services in 2024. Alcon Vision LLC was the largest of 13 companies reporting payments in 2025, $1,055 in all, mostly food and beverage.
Overview
| NPI | 1396132403 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 16, 2015 |
| Last updated in NPPES | Jan 5, 2026 |
| Certified by provider | Jan 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 036152835 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 424 |
|---|---|
| Services billed | 1,849 across 41 procedure codes |
| Paid by Medicare | $218,070 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,646 · 3,560 30-day fills |
|---|---|
| Patients | 584 |
| Total drug cost | $361,552 |
| Generic share | 64% of claims |
Education and affiliations
| Medical school | Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Ophthalmology |
Medical group
- Family Eye Physicians LtdChicago, IL · 16 clinicians
Hospital affiliation
- Osf Little Company of Mary Medical CenterEvergreen Park, IL
Industry payments (Open Payments)
- 2025$1,055 · 36 payments from 13 companies
- 2024$1,248 · 36 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $340.53 | 7 |
| Harrow Eye, LLC | $146.23 | 5 |
| Mallinckrodt Hospital Products Inc. | $122.09 | 4 |
| Ani Pharmaceuticals, Inc. | $80.72 | 4 |
| Sight Sciences, Inc. | $68.05 | 3 |
What the 2025 payments were for
- Food and Beverage$1,017 · 35 payments
- Honoraria$38.86 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Ophthalmology providers in Oak Lawn
- 1669945440
- 1730252230
- 1144208596
- 1194711655
- 1902891948
- 1477522050
- 1356463897
- 1811956725
- 1639744618
- 1932427754
- 1043831894
- 1578541983