Susan N. Diederich, O.D.
NPI 1750318580ActiveIndividual· Optometrist· Wauwatosa, WI
Optometrist (O.D.) in Wauwatosa, Wisconsin, trained at Indiana University - School of Optometry (class of 2004). Mostly services rather than prescriptions: Medicare paid $3,123 for 35 patients in 2024, with only 12 Part D claims. Bausch & Lomb Americas Inc. was the largest of 3 companies reporting payments in 2025, $174.00 in all, mostly food and beverage.
Overview
| NPI | 1750318580 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Jun 27, 2006 |
| Last updated in NPPES | Sep 17, 2025 |
| Certified by provider | Sep 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 2981-035 | WI |
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 - Optometry (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 35 |
|---|---|
| Services billed | 51 across 7 procedure codes |
| Paid by Medicare | $3,123 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12 · 12 30-day fills |
|---|---|
| Total drug cost | $3,686 |
Education and affiliations
| Medical school | Indiana University - School of Optometry |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Optometry |
Medical group
- Markerry Enterprises LLCWauwatosa, WI · 4 clinicians
Industry payments (Open Payments)
- 2025$174.00 · 5 payments from 3 companies
- 2024$14.09 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $122.13 | 2 |
| Alcon Vision LLC | $34.06 | 2 |
| Johnson & Johnson Vision Care, Inc. | $17.81 | 1 |
What the 2025 payments were for
- Food and Beverage$174.00 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Optometrist providers in Wauwatosa
- 1972871572
- 1356471148
- 1629760731
- 1992012488
- 1154939288
- 1659211308
- 1992153969
- 1659560480
- 1992867220
- 1902288558
- 1356421804
- 1649309147