Marshall Corson
NPI 1548346349 · Interventional Cardiology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marshall Corson is a Interventional Cardiology Physician provider in Seattle, WA (NPI 1548346349).
Provider details
- NPI number
- 1548346349
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- MD00031838 (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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-27
- Last updated
- 2011-04-27
Frequently asked questions
- What is Marshall Corson's NPI number?
- Marshall Corson's National Provider Identifier (NPI) is 1548346349, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshall Corson's specialty?
- Marshall Corson is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Marshall Corson located?
- Marshall Corson's practice location on file with NPPES is Harborview Medical Center, Seattle, WA 98104-9747.
- What is Marshall Corson's phone number?
- The practice phone number listed in the NPPES registry for Marshall Corson is (206) 731-3475.
- Does Marshall Corson accept Medicare?
- Marshall Corson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marshall Corson's NPI active?
- Yes — Marshall Corson's NPI (1548346349) is active in the NPPES registry as of the last update on 2011-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.