Nicolaas W. De Wette, MD

Medicare activity in 2024

Official CMS public-use data for Nicolaas W. De Wette, 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)60 services
2. Radiation treatment management, 5 treatment sessions (77427)24 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 pressure67%
• High cholesterol60%
• Arthritis42%
• COPD31%
• Diabetes29%

Hospitals where Nicolaas W. De Wette works

Medicare's Facility Affiliation Data lists Nicolaas W. De Wette 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.

• Asante Rogue Regional Medical CenterMedford, OR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 380018
• Sky Lakes Medical CenterKlamath Falls, OR · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 380050

Practice locations

Addresses where Nicolaas W. De Wette is enrolled with Medicare (CMS data updated October 2, 2026).

• 2610 Uhrmann RdKlamath Falls, OR 97601 (541) 274‑6262
• 2825 E Barnett RdMedford, OR 97504 (541) 789‑7000
• 840 E Hill AveMoses Lake, WA 98837 (509) 663‑8711

Group practices

Medicare enrollment lists Nicolaas W. De Wette as a member of these groups (CMS data updated October 2, 2026).

• Central Washington Health Services Association721 clinicians in the group
• Sky Lakes Medical Center Inc215 clinicians in the group
• Asante149 clinicians in the group

Specialties

• Radiation Oncologyprimary

Find other Radiation Oncology doctors in Oregon →

Other radiation oncologists in Oregon

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

• Kenneth D. Haugen, MD
• Hans H. Kim, MD
• Jenna Kahn, MD
• Michael T. Wahl, MD
• Aaron M. Hicks, MD
• Aaron N. Sabolch, MD
• Pehr Hartvigson, MD
• Kiri A. Cook, MD

All radiation oncologists in Oregon →

Other clinicians in Central Washington Health Services Association

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

• Joshua R. Frank, MD
• Jonathan A. Bolles, MD
• William H. Thorpe, PA
• Richard C. English, PA
• Geoffrey Glidewell, MD
• Gerald J. Hepnar, 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