Alex R. Tan, OD
NPI 1215921655ActiveIndividual· Optometrist· Oak Park, IL
Optometrist (OD) in Oak Park, Illinois, trained at Illinois College of Optometry at Chicago (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $33,539 for 124 claims, against $18,436 paid for services in 2024. Harrow Eye, LLC was the largest of 5 companies reporting payments in 2025, $122.46 in all, mostly food and beverage.
Overview
| NPI | 1215921655 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Aug 31, 2005 |
| Last updated in NPPES | Feb 6, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 046009172 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 91 |
|---|---|
| Services billed | 416 across 14 procedure codes |
| Paid by Medicare | $18,436 |
Part D prescriptions in 2024
| Prescriptions (claims) | 124 · 201 30-day fills |
|---|---|
| Patients | 23 |
| Total drug cost | $33,539 |
| Generic share | 44% of claims |
Education and affiliations
| Medical school | Illinois College of Optometry at Chicago |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Optometry |
Medical group
- Illinois College of OptometryChicago, IL · 76 clinicians
Industry payments (Open Payments)
- 2025$122.46 · 5 payments from 5 companies
- 2024$1,690 · 21 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Harrow Eye, LLC | $38.33 | 1 |
| Tarsus Pharmaceuticals, Inc. | $30.08 | 1 |
| Bausch & Lomb Americas Inc. | $21.18 | 1 |
| Johnson & Johnson Vision Care, Inc. | $18.01 | 1 |
| Dompe US, Inc. | $14.86 | 1 |
What the 2025 payments were for
- Food and Beverage$122.46 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other optometrists in Oak Park
- 1144313313
- 1780176065
- 1881319424
- 1083734206
- 1164464509
- 1164951034
- 1174651020
- 1548409501
- 1558495176
- 1578928487
- 1598060246
- 1598928020
All 24 optometrists in Oak Park · All optometrists in Illinois