Scott R. Underwood, D.O.
NPI 1043592678ActiveIndividual· Internal Medicine· Oxnard, CA
Internal Medicine (D.O.) with County of Ventura, practicing in Oxnard, California. Their prescriptions cost Medicare Part D more than their services did: $321,772 for 557 claims, against $3,174 paid for services in 2024. Ardelyx, Inc. was the largest of 2 companies reporting payments in 2025, $44.30 in all, mostly food and beverage. Lists Ventura County Medical Center as a hospital affiliation.
Overview
| NPI | 1043592678 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Sep 9, 2011 |
| Last updated in NPPES | Sep 20, 2023 |
| Certified by provider | Sep 20, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A11780 | CA |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 29 |
|---|---|
| Services billed | 46 across 6 procedure codes |
| Paid by Medicare | $3,174 |
Part D prescriptions in 2024
| Prescriptions (claims) | 557 · 965 30-day fills |
|---|---|
| Patients | 91 |
| Total drug cost | $321,772 |
| Generic share | 77% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- County of VenturaVentura, CA · 344 clinicians
Hospital affiliation
- Ventura County Medical CenterVentura, CA
Industry payments (Open Payments)
- 2025$44.30 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $24.00 | 1 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $20.30 | 1 |
What the 2025 payments were for
- Food and Beverage$44.30 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Oxnard
- 1013907203
- 1023171162
- 1043232085
- 1043373194
- 1053596395
- 1205472990
- 1255745956
- 1316120157
- 1346635190
- 1386096345
- 1487041158
- 1538705462
All 50 internal medicine physicians in Oxnard · All internal medicine physicians in California