Chenara Johnson, MD, PHD
NPI 1891107223 · Diagnostic Radiology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chenara Johnson, MD, PHD is a Diagnostic Radiology Physician provider in Seattle, WA (NPI 1891107223).
Provider details
- NPI number
- 1891107223
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Female
- Sole proprietor
- No
- License
- MD61593145 (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
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
134 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 | 43 | $9 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 29 | $85 |
| X-Ray of Chest, 2 Views71046 | 25 | $10 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 19 | $86 |
| Ct Scan Head Or Brain Without Contrast70450 | 18 | $41 |
Typical Medicare-allowed amounts for these services range $9–$86 (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.
Practice location
Mailing address
Additional practice locations (1)
- 1959 Ne Pacific St.Seattle, WA 98195-0001Phone: (206) 520-5000
Registry dates
- Enumerated
- 2014-05-20
- Last updated
- 2025-01-24
- Certified
- 2025-01-24
Frequently asked questions
- What is Chenara Johnson's NPI number?
- Chenara Johnson's National Provider Identifier (NPI) is 1891107223, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chenara Johnson's specialty?
- Chenara Johnson is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Chenara Johnson located?
- Chenara Johnson's practice location on file with NPPES is 325 9th Ave, Seattle, WA 98104-2420.
- What is Chenara Johnson's phone number?
- The practice phone number listed in the NPPES registry for Chenara Johnson is (206) 520-5000.
- Does Chenara Johnson accept Medicare?
- Chenara Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chenara Johnson's NPI active?
- Yes — Chenara Johnson's NPI (1891107223) is active in the NPPES registry as of the last update on 2025-01-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.