Timothy Larson, MD
NPI 1679500433 · Neuroradiology Physician · Lynnwood, WA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Larson, MD is a Neuroradiology Physician provider in Lynnwood, WA (NPI 1679500433).
Provider details
- NPI number
- 1679500433
- Entity type
- Individual
- Primary specialty
- Neuroradiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00024859 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
735 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 | 127 | $41 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 101 | $11 |
| X-Ray of Lower and Sacral Spine, Minimum of 4 Views72110 | 77 | $13 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 75 | $18 |
| X-Ray of Upper Spine, 2-3 Views72040 | 36 | $11 |
| X-Ray of Upper Spine, 4-5 Views72050 | 35 | $14 |
| X-Ray of Upper Spine, 2-3 Views72040 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-27
- Last updated
- 2019-03-29
Frequently asked questions
- What is Timothy Larson's NPI number?
- Timothy Larson's National Provider Identifier (NPI) is 1679500433, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Larson's specialty?
- Timothy Larson is listed in the NPPES registry with a primary specialty of Neuroradiology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Larson located?
- Timothy Larson's practice location on file with NPPES is 19020 33rd Ave W Ste 210, Lynnwood, WA 98036-4748.
- What is Timothy Larson's phone number?
- The practice phone number listed in the NPPES registry for Timothy Larson is (425) 563-1500.
- Does Timothy Larson accept Medicare?
- Timothy Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Larson's NPI active?
- Yes — Timothy Larson's NPI (1679500433) is active in the NPPES registry as of the last update on 2019-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.