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Emergency Medicine

Granger J. Marsden, MD

Works at hospitals in Sedro Woolley, WA · Everett, WA · Washington

Summary

Granger J. Marsden, MD (Emergency Medicine) is listed by Medicare at 2 hospitals in Sedro Woolley, WA and Everett, WA. NPI 1659866903. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Granger J. Marsden, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
8Years since medical school (graduated 2018)
MaleGender (as listed)
Providence Health and Services- WashingtonGroup practice (+2 more)

Quick answers

Which hospitals does Granger J. Marsden work at?
Medicare's official clinician data lists Granger J. Marsden at 2 hospitals: PeaceHealth United General Medical Center and Providence Regional Medical Center Everett. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Granger J. Marsden see patients?
Medicare's clinician data lists 3 practice locations, including Everett, WA and Sedro Woolley, WA. Call before your visit to confirm the address.
What is Granger J. Marsden's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Granger J. Marsden accept Medicare assignment?
Yes. Medicare's clinician data says Granger J. Marsden accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Granger J. Marsden?
(425) 261-2000, as listed in official Medicare / NPI Registry data.
What is Granger J. Marsden's NPI number?
1659866903. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Granger J. Marsden works

Medicare's Facility Affiliation Data lists Granger J. Marsden at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Granger J. Marsden is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Granger J. Marsden as a member of these groups (CMS data updated 2026-10-02).

  • Providence Health and Services- Washington529 clinicians in the group
  • North Sound Emergency Medicine PC41 clinicians in the group
  • Sound Physicians Emergency Medicine of Washington PLLC21 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Washington →

Other emergency medicine doctors in Everett

Clinicians with the same Medicare primary specialty in Everett, WA — not a recommendation.

All emergency medicine doctors in Everett →

Clinician information

CredentialMD
Graduation year2018
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659866903
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians