Dorothea Clayton, M.D.
NPI 1053596395ActiveIndividual· Internal Medicine· Oxnard, CA
Internal Medicine (M.D.) in Oxnard, California, trained at Jefferson Medical College of Thomas Jefferson University (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $274,565 for 3,908 claims, against $57,111 paid for services in 2024. Amgen Inc. was the largest of 9 companies reporting payments in 2025, $423.36 in all, mostly food and beverage.
Overview
| NPI | 1053596395 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jan 6, 2008 |
| Last updated in NPPES | Jul 11, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A103688 | CA |
| Internal Medicine | 207R00000X | 125-048954 | IL |
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 | 146 |
|---|---|
| Services billed | 926 across 25 procedure codes |
| Paid by Medicare | $57,111 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,908 · 9,055 30-day fills |
|---|---|
| Patients | 290 |
| Total drug cost | $274,565 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Community Memorial Health SystemOxnard, CA · 185 clinicians
Hospital affiliation
- Community Memorial Hospital - VenturaVentura, CA
Other facilities
- Assisted Home CareHome health agency · Ventura, CA
- Las Posas Home Health ServicesHome health agency · Camarillo, CA
- Livingston Memorial Visiting Nurse AssociationHome health agency · Ventura, CA
Industry payments (Open Payments)
- 2025$423.36 · 20 payments from 9 companies
- 2024$334.67 · 15 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $172.98 | 9 |
| Ucb, Inc. | $59.40 | 2 |
| Lilly USA, LLC | $37.88 | 2 |
| Janssen Biotech, Inc. | $35.08 | 1 |
| Almatica Pharma LLC | $30.20 | 2 |
What the 2025 payments were for
- Food and Beverage$423.36 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 50 internal medicine physicians in Oxnard · All internal medicine physicians in California