Dwayne P. Vanderberg, M.D.
NPI 1225012008ActiveIndividual· Internal Medicine· Olivehurst, CA
Internal Medicine (M.D.) in Olivehurst, California, trained at Loma Linda University School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $807,310 for 10,176 claims, against $737.71 paid for services in 2024. Hologic Sales and Service, LLC was the largest of 3 companies reporting payments in 2025, $69.83 in all, mostly food and beverage.
Overview
| NPI | 1225012008 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 5, 2005 |
| Last updated in NPPES | Feb 26, 2026 |
| Certified by provider | Feb 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G73626 | 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 | 81 |
|---|---|
| Services billed | 351 across 3 procedure codes |
| Paid by Medicare | $737.71 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,176 · 15,714 30-day fills |
|---|---|
| Patients | 243 |
| Total drug cost | $807,310 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Internal Medicine |
Medical group
- Ampla HealthOroville, CA · 101 clinicians
Hospital affiliations
- Adventist Health and RideoutMarysville, CA
- Oroville HospitalOroville, CA
Other facilities
- Adventist Health Home Care ServicesHome health agency · Yuba City, CA
- Aspire Home Healthcare of Northern California, IncHome health agency · Yuba City, CA
- Sutter Care at HomeHome health agency · Yuba City, CA
Industry payments (Open Payments)
- 2025$69.83 · 4 payments from 3 companies
- 2024$21.30 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $35.24 | 2 |
| Cranial Technologies, Inc | $19.10 | 1 |
| Pfizer Inc. | $15.49 | 1 |
What the 2025 payments were for
- Food and Beverage$69.83 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Olivehurst
- 1356325120