Patrick Michael Differding, MD
NPI 1356871016ActiveIndividual· Ophthalmology· Aurora, IL
Ophthalmology (MD) in Aurora, Illinois, trained at University of Chicago, Pritzker School of Medicine (class of 2017). In 2024 Medicare paid $120,837 for 308 patients, and Part D covered 835 of their prescriptions, 62% of them generic. Alcon Vision LLC was the largest of 8 companies reporting payments in 2025, $543.84 in all, mostly food and beverage.
Overview
| NPI | 1356871016 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 15, 2017 |
| Last updated in NPPES | Feb 20, 2024 |
| Certified by provider | Feb 20, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 036.158568 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 | 308 |
|---|---|
| Services billed | 1,663 across 35 procedure codes |
| Paid by Medicare | $120,837 |
Part D prescriptions in 2024
| Prescriptions (claims) | 835 · 1,219 30-day fills |
|---|---|
| Patients | 228 |
| Total drug cost | $23,630 |
| Generic share | 62% of claims |
Education and affiliations
| Medical school | University of Chicago, Pritzker School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Ophthalmology |
Medical group
- Aurora Eye Clinic LtdAurora, IL · 8 clinicians
Hospital affiliation
- Presence Mercy Medical CenterAurora, IL
Industry payments (Open Payments)
- 2025$543.84 · 23 payments from 8 companies
- 2024$231.54 · 13 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $271.18 | 11 |
| Abbvie Inc. | $95.19 | 4 |
| Dompe US, Inc. | $79.12 | 3 |
| Johnson & Johnson Surgical Vision, Inc. | $25.28 | 1 |
| Tarsus Pharmaceuticals, Inc. | $22.66 | 1 |
What the 2025 payments were for
- Food and Beverage$543.84 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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