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MARSHALL A CORSON
NPI 1548346349
Internal Medicine - Interventional Cardiology in Seattle, WA

Active since October 27, 2006PECOS EnrolledAccepts Medicare Assignment
71.76/100
CMS Quality Rating
HARBORVIEW MEDICAL CENTER, 325 9TH AVE, SEATTLE, WA 98104(206) 731-3475 Get Directions Write a Review

NPPES record last updated: April 27, 2011. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Marshall A Corson NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARSHALL A CORSON (NPI 1548346349) is an individual interventional cardiology provider in Seattle, Washington, licensed in Washington (MD00031838) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Baylor College Of Medicine (1981).

NPPES Registry Identity

NPI1548346349
Entity TypeIndividualMale
Primary Taxonomy207RI0011X
Provider Legal NameMARSHALL A CORSON
Location AddressHARBORVIEW MEDICAL CENTER, 325 9TH AVESeattle, WA 98104-9747
Mailing AddressPo Box 50095Seattle, WA 98145-5095
Phone(206) 731-3475
Sole ProprietorNo
Medical School CMSBaylor College Of MedicineGraduated 1981
Enumeration DateOctober 27, 2006
Last NPPES UpdateApril 27, 2011
✔ NPI 1548346349 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RI0011X
License✔ Licensed in WA · MD00031838
Definition
An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License MD00031838 (WA)
HARBORVIEW MEDICAL CENTER, Seattle, WA 98104
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Other Identifiers 4

Medicare UPINF83132
Other3403Internal Id-motor Vehicle Id
Medicare ID-Type Unspecified108083
Medicaid8157166WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marshall A Corson is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456488444
PECOS Enrollment IDI20100422001008
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$143.76 typical visit price
range $63.67 – $189.37
Typical copayment $35.94 (range $15.91 – $47.34)
Most-billed visit code 99204
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

71.76/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality76.6
Promoting Interoperability92
Improvement Activities40
Cost35.95

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROBERT PAUL DUNBAR JR.
Orthopaedic Surgery (Orthopaedic Trauma)
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3462
J RICHARD GOSS MD
Internal Medicine
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3000
MICHAEL WARREN SCHWARTZ
Internal Medicine (Endocrinology, Diabetes & Metabolism)
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3241
RICHARD A ZAGER M.D.
Internal Medicine
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3000
W T LONGSTRETH JR.
Psychiatry & Neurology (Neurology)
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3992
CAROL L METCALF
Nurse Practitioner
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3059
ROCHELLE L GARCIA
Pathology (Cytopathology)
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 731-3145
DAVID BRANCH ROWLETT III
Psychiatry & Neurology (Psychiatry)
HARBORVIEW MEDICAL CENTER, 325 9TH AVE
SEATTLE, WA 98104
King County (206) 744-5846

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marshall Corson's NPI number?

The NPI number for Marshall Corson is 1548346349. It was assigned to this individual provider in the NPPES registry on October 27, 2006.

Where is Marshall Corson located?

Marshall Corson practices at Harborview Medical Center 325 9th Ave, Seattle, WA 98104. The listed phone number is (206) 731-3475.

What is Marshall Corson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Marshall Corson enrolled in Medicare?

Yes. Marshall Corson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Marshall Corson accept?

Health plans from PacificSource Health Plans and Premera Blue Cross Blue Shield of Alaska list Marshall Corson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marshall Corson was last updated on April 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.