Penelope Thomas, M.D.
NPI 1851553986 · Diagnostic Radiology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Penelope Thomas, M.D. is a Diagnostic Radiology Physician provider in Seattle, WA (NPI 1851553986).
Provider details
- NPI number
- 1851553986
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD61200595 (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
17 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
600 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 153 | $43 |
| Mri Scan of Brain Before and After Contrast70553 | 83 | $117 |
| Ct Scan of Blood Vessels of Head With Contrast70496 | 44 | $87 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 40 | $83 |
| Mri Scan of Brain Without Contrast70551 | 32 | $75 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 26 | $29 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-30
- Last updated
- 2021-10-04
- Certified
- 2021-10-04
Frequently asked questions
- What is Penelope Thomas's NPI number?
- Penelope Thomas's National Provider Identifier (NPI) is 1851553986, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Penelope Thomas's specialty?
- Penelope Thomas is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Penelope Thomas located?
- Penelope Thomas's practice location on file with NPPES is 1959 Ne Pacific St, Seattle, WA 98195-2204.
- What is Penelope Thomas's phone number?
- The practice phone number listed in the NPPES registry for Penelope Thomas is (206) 520-5000.
- Does Penelope Thomas accept Medicare?
- Penelope Thomas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Penelope Thomas's NPI active?
- Yes — Penelope Thomas's NPI (1851553986) is active in the NPPES registry as of the last update on 2021-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.