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Diagnostic Radiology

Claire K. Sandstrom, MD

Works at hospitals in Seattle, WA · Elma, WA · Washington

Summary

Dr. Claire K. Sandstrom, MD is a radiologist at 24360 Van Ry Blvd, Suite 111, Mountlake Terrace, WA 98043. Phone: (206) 598-9091. Accepts Medicare assignment. In 2024, Claire K. Sandstrom had 616 Original Medicare patients and 1,246 services. NPI 1598965485. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Claire K. Sandstrom, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Claire K. Sandstrom accept Medicare assignment?
Yes. Medicare's clinician data says Claire K. Sandstrom accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Claire K. Sandstrom see?
In 2024, CMS data shows 616 Original Medicare patients and 1,246 services for Claire K. Sandstrom. This counts Original Medicare only and measures volume, not quality.
What is Claire K. Sandstrom's NPI number?
1598965485. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Claire K. Sandstrom, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients616
Services billed to Medicare1,246
Different services or procedures69
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. X-ray of chest, 1 view (71045)228 services
  2. Ct scan of abdomen and pelvis with contrast (74177)109 services
  3. Ct scan of upper spine without contrast (72125)77 services
  4. Ct scan of blood vessels of chest with contrast (71275)70 services
  5. X-ray of chest, 2 views (71046)58 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol66%
  • Arthritis50%
  • Anxiety35%
  • Ischemic heart disease34%
  • Diabetes33%

Hospitals where Claire K. Sandstrom works

Medicare's Facility Affiliation Data lists Claire K. Sandstrom at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Claire K. Sandstrom is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Claire K. Sandstrom as a member of this group (CMS data updated October 2, 2026).

  • The Association of University Physicians3,535 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Washington →

Other radiologists in Washington

Clinicians with the same Medicare primary specialty in Washington — not a recommendation.

All radiologists in Washington →

Other clinicians in The Association of University Physicians

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolDuke University School Of Medicine
Graduation year2006 (20 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598965485
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians