William W. Oneill, MD
NPI 1881676435ActiveIndividual· Internal Medicine, Cardiovascular Disease· Naples, FL
Internal Medicine, Cardiovascular Disease (MD) in Naples, Florida, licensed in FL and MI, with an NPI issued in November 2005. Their prescriptions cost Medicare Part D more than their services did: $82,452 for 376 claims, against $1,979 paid for services in 2024. Tendyne Holdings, Inc. was the largest of 6 companies reporting payments in 2025, $44,961 in all, mostly consulting fees.
Overview
| NPI | 1881676435 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 18, 2005 |
| Last updated in NPPES | Apr 18, 2025 |
| Certified by provider | Apr 18, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | ME173217 | FL |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 4301039889 | MI |
| Internal Medicine, Interventional Cardiology | 207RI0011X | ME0097328 | FL |
| Internal Medicine, Interventional Cardiology | 207RI0011X | 4301039889 | MI |
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 - Interventional Cardiology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 28 |
|---|---|
| Services billed | 57 across 5 procedure codes |
| Paid by Medicare | $1,979 |
Part D prescriptions in 2024
| Prescriptions (claims) | 376 · 1,008 30-day fills |
|---|---|
| Patients | 81 |
| Total drug cost | $82,452 |
| Generic share | 81% of claims |
Industry payments (Open Payments)
- 2025$44,961 · 27 payments from 6 companies
- 2024$153,944 · 90 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tendyne Holdings, Inc. | $19,685 | 1 |
| Zoll Circulation Inc | $14,564 | 7 |
| Abiomed | $9,762 | 13 |
| Edwards Lifesciences Corporation | $586.95 | 4 |
| Angiodynamics, Inc. | $189.48 | 1 |
What the 2025 payments were for
- Consulting Fee$22,488 · 5 payments
- Acquisitions$19,685 · 1 payment
- Food and Beverage$2,171 · 19 payments
- Travel and Lodging$618.09 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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