Ken Linnau, MD, MS
NPI 1740395904 · Diagnostic Radiology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ken Linnau, MD, MS is a Diagnostic Radiology Physician provider in Seattle, WA (NPI 1740395904).
Provider details
- NPI number
- 1740395904
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MS
- Sex
- Male
- Sole proprietor
- No
- License
- MD60124814 (WA)
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
1,232 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 230 | $9 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 109 | $93 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 101 | $91 |
| X-Ray of Chest, 2 Views71046 | 84 | $11 |
| Ct Scan of Upper Spine Without Contrast72125 | 67 | $49 |
| Ct Scan Head Or Brain Without Contrast70450 | 51 | $42 |
| Ct Scan of Lower Spine Without Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-20
- Last updated
- 2013-12-10
Frequently asked questions
- What is Ken Linnau's NPI number?
- Ken Linnau's National Provider Identifier (NPI) is 1740395904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ken Linnau's specialty?
- Ken Linnau is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ken Linnau located?
- Ken Linnau's practice location on file with NPPES is 325 9th Ave, Seattle, WA 98104-2420.
- What is Ken Linnau's phone number?
- The practice phone number listed in the NPPES registry for Ken Linnau is (206) 744-3561.
- Does Ken Linnau accept Medicare?
- Ken Linnau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ken Linnau's NPI active?
- Yes — Ken Linnau's NPI (1740395904) is active in the NPPES registry as of the last update on 2013-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.