Peter J. Schlegel, MD

Medicare activity in 2024

Official CMS public-use data for Peter J. Schlegel, 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.

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 pressure73%

Hospitals where Peter J. Schlegel works

Medicare's Facility Affiliation Data lists Peter J. Schlegel 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.

• Kadlec Regional Medical CenterRichland, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500058
• Prov Sacred HRT Medical Center & Childs HospitalSpokane, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500054
• Providence St Mary Medical CenterWalla Walla, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500002

Practice locations

Addresses where Peter J. Schlegel is enrolled with Medicare (CMS data updated October 2, 2026).

• 401 W Poplar StWalla Walla, WA 99362 (509) 897‑2500
• 601 S Sherman StSpokane, WA 99202 (509) 228‑1000
• 605 E Holland Ave, Suite 100Spokane, WA 99218 (509) 228‑1000

Group practices

Medicare enrollment lists Peter J. Schlegel as a member of these groups (CMS data updated October 2, 2026).

• Providence Health and Services - Washington270 clinicians in the group
• Cancer Care Northwest Centers P S42 clinicians in the group

Specialties

• Medical Oncologyprimary

Find other Medical Oncology doctors in Washington →

Other oncologists in Washington

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

• David D. Shin, MD
• Helen Goldberg, MD
• Rangaswamy Chintapatla, MD
• Edus H. Warren Iii, MD
• Manuel A. Macapinlac, MD
• Derek L. Stirewalt, MD
• Mijung Lee, MD
• Mark E. Sienko, MD

All oncologists in Washington →

Other clinicians in Providence Health and Services - Washington

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

• Caroline A. Arnold, MD
• Jon Gardner, MD
• Oliver A. Batson, MD
• Amy B. Johnson, NP
• Moises E. Cordova, PA
• Javid Kamali, 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