Marshall A. Corson
Interventional Cardiology Physician · Seattle, WA
Marshall A. Corson is an interventional cardiology physician with a practice address in Seattle, Washington, and NPI 1548346349, issued on Oct 27, 2006. Check the license (Washington MD00031838, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Marshall A. Corson
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- MD00031838 WA
Self-reported in NPPES; status is on the state search - Practice location
- Harborview Medical Center, Seattle, WA 98104
- Phone
- (206) 731-3475
- Enumerated
- Oct 27, 2006
- Record last updated
- Apr 27, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 8157166 WA
- Medicare enrollment
- Enrolled (PECOS I20100422001008); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 131 in Washington → Look up another NPI →
Also registered at Harborview Medical Center
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily AlbrechtPhysician Assistant1871679688
- Jordan Allen, RRTCritical Care Registered Respiratory Therapist1750270922
- David AveryPsychiatry Physician1548349293
- David BareiOrthopaedic Trauma Physician1316023112
- Scott Barnhart, MDPulmonary Disease Physician1134205933
- Kyra BeckerNeurology Physician1902985666
Verify Marshall A. Corson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00031838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 71.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Whidbey Island Public Hospital DistrictCoupeville, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marshall A. Corson among 131 interventional cardiology physician records in Washington
Marshall A. Corson is one of 131 interventional cardiology physician records with a practice address in Washington. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 54% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated1981 · median 2004 among the 109 with a school on file
- Record last updated2011 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in Washington
There are 131 interventional cardiology physician records in Washington.
All 131 in Washington → Every provider in Seattle → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Kenichi Fujise, M.D.Seattle, WA 981041861426009
- Ravi Hira, M.D.Seattle, WA 981041447414164
- Lucas Fayez Bazi, M.D.Seattle, WA 981011316379803
- Wayne Hwang, MDSeattle, WA 981011205808896
- Gordon Kritzer, MDSeattle, WA 981011518939420
- Timothy Dewhurst, M.D.Seattle, WA 981121790752624
- Christopher Brown, MDSeattle, WA 981221922418789
- Sameer Gafoor, MDSeattle, WA 981221003933987
Common questions
What is Marshall A. Corson's NPI number?
Marshall A. Corson's National Provider Identifier (NPI) is 1548346349, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marshall A. Corson located?
The NPPES record lists a practice address at Harborview Medical Center, Seattle, WA, 98104. Phone: (206) 731-3475. Providers update this record themselves, so call before visiting.
How can I verify Marshall A. Corson's license?
NPPES lists Washington license number MD00031838, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Marshall A. Corson's MIPS final score?
The 2023 MIPS final score is 71.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.