Dennis Roy Vannatta, O.D.
NPI 1144212358ActiveIndividual· Optometrist· Sioux City, IA
Optometrist (O.D.) in Sioux City, Iowa, trained at Pacific University - College of Optometry (class of 1976). In 2024 Medicare paid $67,183 for 401 patients, and Part D covered 384 of their prescriptions, 77% of them generic. Bausch & Lomb Americas Inc. was the largest of 6 companies reporting payments in 2025, $431.42 in all, mostly food and beverage.
Overview
| NPI | 1144212358 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Aug 16, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | IA1725 | IA |
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 (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 401 |
|---|---|
| Services billed | 1,461 across 18 procedure codes |
| Paid by Medicare | $67,183 |
Part D prescriptions in 2024
| Prescriptions (claims) | 384 · 769 30-day fills |
|---|---|
| Patients | 73 |
| Total drug cost | $34,157 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | Pacific University - College of Optometry |
|---|---|
| Graduation year | 1976 |
| Medicare specialty | Optometry |
Industry payments (Open Payments)
- 2025$431.42 · 12 payments from 6 companies
- 2024$319.76 · 9 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $147.81 | 6 |
| Abbvie Inc. | $124.46 | 1 |
| Rxsight Inc | $76.99 | 1 |
| Tarsus Pharmaceuticals, Inc. | $34.37 | 1 |
| Johnson & Johnson Vision Care, Inc. | $30.57 | 2 |
What the 2025 payments were for
- Food and Beverage$431.42 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 33 optometrists in Sioux City · All optometrists in Iowa