Robert Dekkers, M.D.
NPI 1821083171ActiveIndividual· Internal Medicine· Santa Paula, CA
Internal Medicine (M.D.) with Dignity Health Medical Foundation, practicing in Santa Paula, California. Their prescriptions cost Medicare Part D more than their services did: $653,950 for 10,331 claims, against $77,487 paid for services in 2024. Novo Nordisk Inc was the largest of 5 companies reporting payments in 2025, $158.46 in all, mostly food and beverage. Lists Community Memorial Hospital - Ventura and 1 other hospital as hospital affiliations.
Overview
| NPI | 1821083171 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 13, 2005 |
| Last updated in NPPES | Oct 3, 2023 |
| Certified by provider | Oct 3, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A40656 | 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 | 227 |
|---|---|
| Services billed | 1,475 across 24 procedure codes |
| Paid by Medicare | $77,487 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,331 · 16,086 30-day fills |
|---|---|
| Patients | 498 |
| Total drug cost | $653,950 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1976 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Dignity Health Medical FoundationFolsom, CA · 1,184 clinicians
Hospital affiliations
- Community Memorial Hospital - VenturaVentura, CA
- Ventura County Medical CenterVentura, CA
Other facilities
- Assisted Home CareHome health agency · Ventura, CA
- Glenwood Care CenterNursing home · Oxnard, CA
- Victoria Care CenterNursing home · Ventura, CA
Industry payments (Open Payments)
- 2025$158.46 · 7 payments from 5 companies
- 2024$100.22 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $74.77 | 3 |
| Lilly USA, LLC | $29.50 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $20.67 | 1 |
| Amgen Inc. | $17.29 | 1 |
| Glaxosmithkline, LLC. | $16.23 | 1 |
What the 2025 payments were for
- Food and Beverage$126.19 · 6 payments
- Education$32.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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