Dennis W. Siemsen, OD
NPI 1598742074ActiveIndividual· Optometrist· Rochester, MN
Optometrist (OD) in Rochester, Minnesota, licensed in MN, with an NPI issued in December 2005. Medicare paid $15,857 for services to 166 patients in 2024. Sun Pharmaceutical Industries Inc. reported $119.69 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1598742074 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Dec 27, 2005 |
| Last updated in NPPES | Feb 26, 2026 |
| Certified by provider | Feb 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 2713 | MN |
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 (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 166 |
|---|---|
| Services billed | 181 across 13 procedure codes |
| Paid by Medicare | $15,857 |
Industry payments (Open Payments)
- 2025$119.69 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sun Pharmaceutical Industries Inc. | $119.69 | 1 |
What the 2025 payments were for
- Food and Beverage$119.69 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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