James F. Spiegel, MD

Medicare activity in 2024

Official CMS public-use data for James F. Spiegel, 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. Ct guidance for insertion of radiation therapy fields (77014)605 services
2. Radiation treatment management, 5 treatment sessions (77427)186 services
3. Calculation of radiation therapy dose (77300)127 services
4. Design and construction of complex radiation treatment device (77334)118 services
5. Complex radiation therapy planning (77263)48 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).

• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
• High blood pressure65%
• High cholesterol64%
• Arthritis38%
• Anxiety18%
• Diabetes17%

Hospitals where James F. Spiegel works

Medicare's Facility Affiliation Data lists James F. Spiegel 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.

• Swedish IssaquahIssaquah, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500152
• Swedish Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500027
• Swedish Medical Center / Cherry HillSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500025

Practice locations

Addresses where James F. Spiegel is enrolled with Medicare (CMS data updated October 2, 2026).

• 1221 Madison St, Suite 1Seattle, WA 98104 (209) 386‑2323

Group practices

Medicare enrollment lists James F. Spiegel as a member of this group (CMS data updated October 2, 2026).

• Tumor Institute Radiation Oncology Group LLP16 clinicians in the group

Specialties

• Radiation Oncologyprimary

Find other Radiation Oncology doctors in Washington →

Other radiation oncologists in Seattle

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

• Paul J. Riviere, MD
• Alvin R. Cabrera, MD
• James H. Brashears, MD
• Smith Apisarnthanarax, MD
• Ramesh Rengan, MD
• Ralph P. Ermoian, MD
• Janice N. Kim, MD
• Ting Martin Ma

All radiation oncologists in Seattle →

Other clinicians in Tumor Institute Radiation Oncology Group LLP

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

• James H. Brashears, MD
• Li Ming C. Fang, MD
• Vivek K. Mehta, MD
• Daniela L. Buscariollo, MD
• Stephen M. Eulau, MD
• Robert M. Meier, MD

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