Mitsutomi Ishiyama, MD

Medicare activity in 2024

Official CMS public-use data for Mitsutomi Ishiyama, 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.

Most frequent services

1. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)6,891 services
2. Injection, gadobutrol, 0.1 ml (A9585)3,075 services
3. Dxa bone density measurement of hip, pelvis, spine (77080)979 services
4. Ct scan head or brain without contrast (70450)221 services
5. Nuclear medicine study from skull base to mid-thigh with ct scan (78815)215 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 cholesterol67%
• High blood pressure63%
• Arthritis47%
• Osteoporosis25%
• Ischemic heart disease22%
• Depression22%

Hospitals where Mitsutomi Ishiyama works

Medicare's Facility Affiliation Data lists Mitsutomi Ishiyama 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.

• Forks Community HospitalForks, WA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 501325
• Highline Medical CenterBurien, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500011
• Kittitas Valley Community HospitalEllensburg, WA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 501333
• Virginia Mason Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 500005

Practice locations

Addresses where Mitsutomi Ishiyama is enrolled with Medicare (CMS data updated October 2, 2026).

• 1100 9th AveSeattle, WA 98101 (206) 223‑6600

Group practices

Medicare enrollment lists Mitsutomi Ishiyama as a member of this group (CMS data updated October 2, 2026).

• Virginia Mason Medical Center867 clinicians in the group

Specialties

• Diagnostic Radiologyprimary
• Nuclear Medicinealso

Find other Diagnostic Radiology doctors in Washington →

Other radiologists in Seattle

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

• Adam J. Benson, MD
• Alireza Abadi, MD
• Johanne Leblanc, MD
• C Mark Alder, MD
• Jonathan R. Medverd, MD
• Steven Y. Sohn, MD
• Sung E. Logerfo, MD
• Alan Itkin, MD

All radiologists in Seattle →

Other clinicians in Virginia Mason Medical Center

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

• Christopher C. Danenhower, MD
• Jennifer J. Wishinski
• Ifeoma Oriaku, MD
• Connie J. Chen, MD
• Yunhee Im, MD
• Andrew W. Trindle, CSW

Clinician information

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