Donald Decker, M.D.
NPI 1134345622 · Diagnostic Radiology Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Decker, M.D. is a Diagnostic Radiology Physician provider in Thousand Oaks, CA (NPI 1134345622).
Provider details
- NPI number
- 1134345622
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 101962 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,801 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Screening Mammography77067 | 1,677 | $147 |
| Screening 3d Breast Mammography77063 | 1,675 | $58 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 418 | $44 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 258 | $52 |
| Diagnostic Mammography of Both Breasts77066 | 182 | $180 |
| Complete Ultrasound Scan of 1 Breast76641 | 172 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-17
- Last updated
- 2014-02-24
Frequently asked questions
- What is Donald Decker's NPI number?
- Donald Decker's National Provider Identifier (NPI) is 1134345622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Decker's specialty?
- Donald Decker is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Decker located?
- Donald Decker's practice location on file with NPPES is 415 Rolling Oaks Dr, Thousand Oaks, CA 91361-1029.
- What is Donald Decker's phone number?
- The practice phone number listed in the NPPES registry for Donald Decker is (805) 778-1513.
- Does Donald Decker accept Medicare?
- Donald Decker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Decker's NPI active?
- Yes — Donald Decker's NPI (1134345622) is active in the NPPES registry as of the last update on 2014-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.