Zachary Oaks, MD

Medicare activity in 2024

Official CMS public-use data for Zachary Oaks, 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)585 services
2. Calculation of radiation therapy dose (77300)363 services
3. Radiation treatment management, 5 treatment sessions (77427)242 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)218 services
5. Design and construction of complex radiation treatment device (77334)198 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 cholesterol73%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)71%
• Arthritis46%
• Ischemic heart disease42%
• COPD34%

Hospitals where Zachary Oaks works

Medicare's Facility Affiliation Data lists Zachary Oaks 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.

• Paris Community HospitalParis, IL · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 141320
• Sullivan County Community HospitalSullivan, IN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 151327
• Union Hospital ClintonClinton, IN · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 151326
• Union Hospital IncTerre Haute, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150023

Practice locations

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

• 2940 S Meridian, Suite 100Puyallup, WA 98373 (253) 200‑3166

Group practices

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

• Sound Cancer Care PLLC3 clinicians in the group

Specialties

• Radiation Oncologyprimary

Find other Radiation Oncology doctors in Washington →

Other radiation oncologists in Washington

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

• Kenneth S. Bergman, MD
• Kevin E. Sanders, MD
• Mohammad Hissourou Iii, MD
• Jon L. Griffith, MD
• Daniela L. Buscariollo, MD
• Shushan Rana, MD
• Jamie S. Takayesu, MD
• Michal A. Whiton, MD

All radiation oncologists in Washington →

Other clinicians in Sound Cancer Care PLLC

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

• Kenneth S. Bergman, MD
• Kevin E. Sanders, 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