Dwayne Vanderberg, M.D.
NPI 1225012008 · Internal Medicine Physician · Olivehurst, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dwayne Vanderberg, M.D. is a Internal Medicine Physician provider in Olivehurst, CA (NPI 1225012008).
Provider details
- NPI number
- 1225012008
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G73626 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
344 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 222 | $3 |
| Hemoglobin A1c Level, By Device for Home Use83037 | 122 | $0 |
Typical Medicare-allowed amounts for these services range $0–$3 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 150 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 564 | 66 |
| Atorvastatin Calcium | 558 | 127 |
| Omeprazole | 356 | 72 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 292 | 58 |
| Metformin Hcl | 265 | 54 |
| Zolpidem Tartrate | 260 | 32 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-05
- Last updated
- 2026-02-26
- Certified
- 2026-02-26
Frequently asked questions
- What is Dwayne Vanderberg's NPI number?
- Dwayne Vanderberg's National Provider Identifier (NPI) is 1225012008, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dwayne Vanderberg's specialty?
- Dwayne Vanderberg is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dwayne Vanderberg located?
- Dwayne Vanderberg's practice location on file with NPPES is 4941 Olivehurst Ave, Olivehurst, CA 95961-4225.
- What is Dwayne Vanderberg's phone number?
- The practice phone number listed in the NPPES registry for Dwayne Vanderberg is (530) 743-4611.
- Does Dwayne Vanderberg accept Medicare?
- Dwayne Vanderberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dwayne Vanderberg's NPI active?
- Yes — Dwayne Vanderberg's NPI (1225012008) is active in the NPPES registry as of the last update on 2026-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.