Robert Dekkers, M.D.
NPI 1821083171 · Internal Medicine Physician · Santa Paula, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Dekkers, M.D. is a Internal Medicine Physician provider in Santa Paula, CA (NPI 1821083171).
Provider details
- NPI number
- 1821083171
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A40656 (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
825 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 375 | $143 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 135 | $197 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 73 | $147 |
| Hemoglobin A1c Level83036 | 72 | $10 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 55 | $16 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 |
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 |
|---|---|---|
| Atorvastatin Calcium | 549 | 135 |
| Levothyroxine Sodium | 459 | 101 |
| Gabapentin | 343 | 85 |
| Omeprazole | 300 | 113 |
| Metformin Hcl | 296 | 79 |
| Furosemide | 295 | 106 |
| Apixabanbrand: Eliquis |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$100 across 5 records (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
- 2005-09-13
- Last updated
- 2023-10-03
- Certified
- 2023-10-03
Frequently asked questions
- What is Robert Dekkers's NPI number?
- Robert Dekkers's National Provider Identifier (NPI) is 1821083171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Dekkers's specialty?
- Robert Dekkers is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Dekkers located?
- Robert Dekkers's practice location on file with NPPES is 243 March St, Santa Paula, CA 93060-2511.
- What is Robert Dekkers's phone number?
- The practice phone number listed in the NPPES registry for Robert Dekkers is (805) 525-7131.
- Does Robert Dekkers accept Medicare?
- Robert Dekkers is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Dekkers's NPI active?
- Yes — Robert Dekkers's NPI (1821083171) is active in the NPPES registry as of the last update on 2023-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.