Vincent A. Zizak, MD

Medicare activity in 2024

Official CMS public-use data for Vincent A. Zizak, 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. Removal of impacted ear wax (69210)797 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)660 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)395 services
4. Diagnostic exam of voice box using a flexible endoscope (31575)200 services
5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)162 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 cholesterol70%
• High blood pressure69%
• Arthritis44%
• Diabetes24%
• Ischemic heart disease21%
• Atrial fibrillation20%

Hospitals where Vincent A. Zizak works

Medicare's Facility Affiliation Data lists Vincent A. Zizak 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.

• Jefferson HealthcarePort Townsend, WA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 501323
• Olympic Medical CenterPort Angeles, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500072
• St Michael Medical CenterSilverdale, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 500039

Practice locations

Addresses where Vincent A. Zizak is enrolled with Medicare (CMS data updated October 2, 2026).

• 9621 Ridgetop Blvd NWSilverdale, WA 98383 (360) 782‑3300

Group practices

Medicare enrollment lists Vincent A. Zizak as a member of this group (CMS data updated October 2, 2026).

• Franciscan Medical Group1,421 clinicians in the group

Specialties

• Otolaryngologyprimary

Find other Otolaryngology doctors in Washington →

Other ENT doctors in Washington

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

• Michael J. Olds, MD
• Yvette R. Hollett, MD
• Todd D. Jones, MD
• William A. Portuese, MD
• Andrew C. Verneuil, MD
• Gregory S. Stearns, MD
• Jonathan C. Kopelovich, MD
• Dick Hoistad, MD

All ENT doctors in Washington →

Other clinicians in Franciscan Medical Group

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

• Yuen-Jing A. Chen, MD
• William D. Demonte, CP
• Susan L. Knowlton, MD
• Jordan Takasugi, MD
• Soumya Donohoe, NP
• Eve S. Cunningham, 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