Tomasz M. Ziedalski, MD

Medicare activity in 2024

Official CMS public-use data for Tomasz M. Ziedalski, 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. Critical care, first 30-74 minutes (99291)224 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)175 services
3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)112 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)111 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)109 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 cholesterol75%
• Arthritis46%
• Ischemic heart disease39%
• Heart failure39%
• COPD37%

Hospitals where Tomasz M. Ziedalski works

Medicare's Facility Affiliation Data lists Tomasz M. Ziedalski 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.

• Island HospitalAnacortes, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500007
• Providence Regional Medical Center EverettEverett, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500014
• Skagit Valley HospitalMount Vernon, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500003
• Swedish Edmonds HospitalEdmonds, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500026
• Swedish Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500027

Practice locations

Addresses where Tomasz M. Ziedalski is enrolled with Medicare (CMS data updated October 2, 2026).

• 1211 24th StAnacortes, WA 98221
• 1321 Colby AveEverett, WA 98201 (425) 252‑8375

Group practices

Medicare enrollment lists Tomasz M. Ziedalski as a member of these groups (CMS data updated October 2, 2026).

• Western Washington Medical Group Inc PS112 clinicians in the group
• Public Hospital District No 2 Skagit County Washington76 clinicians in the group

Specialties

• Pulmonary Diseaseprimary
• Critical Care (Intensivists)also
• Sleep Medicinealso

Find other Pulmonary Disease doctors in Washington →

Other pulmonologists in Washington

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

• Niket Nathani, MD
• Philip Yang, MD
• Alexander W. Steinberg, MD
• George P. Pappas, MD
• Laura L. Willoughby, MD
• Pawan Chawla, MD
• Tisha Wang, MD
• Teal S. Hallstrand, MD

All pulmonologists in Washington →

Other clinicians in Western Washington Medical Group Inc PS

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

• Maiyen T. Hawkins, DO
• Maya I. Koehler, MD
• Phillip A. Shaw, DPM
• Ya Lan Huang, MD
• Susana J. Escobar, MD
• Steven J. Pilarski, DO

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