Zachary L. Steinberg, MD

Medicare activity in 2024

Official CMS public-use data for Zachary L. Steinberg, 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. Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)44 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)27 services
3. Insertion of tube in right heart chambers for measurement (93451)26 services
4. Insertion of tube in coronary artery for diagnosis with review by radiologist (93454)13 services
5. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)13 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 pressure65%
• High cholesterol60%
• Heart failure54%
• Atrial fibrillation46%
• Ischemic heart disease42%
• Anxiety35%

Hospitals where Zachary L. Steinberg works

Medicare's Facility Affiliation Data lists Zachary L. Steinberg 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.

• University of Washington Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 500008

Practice locations

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

• 1959 NE Pacific StSeattle, WA 98195 (206) 598‑4333

Group practices

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

• The Association of University Physicians3,535 clinicians in the group

Specialties

• Adult Congenital Heart Disease (ACHD)primary
• Cardiovascular Disease (Cardiology)also
• Interventional Cardiologyalso

Find other Adult Congenital Heart Disease (ACHD) doctors in Washington →

Other adult congenital heart disease cardiologists in Seattle

Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.

• Brian H. Morray, MD
• Jason Deen, MD
• Yonatan Buber, MD
• Jill M. Steiner, MD
• Andrew R. Pistner, MD

All adult congenital heart disease cardiologists in Seattle →

Other clinicians in The Association of University Physicians

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

• Jacqueline F. Birnbaum, MD
• Randall M. Chesnut, MD
• Katherine M. Jackson, MD
• Jacob B. Gross, MD
• Mark T. Ellestad, MD
• Andrew M. McCoy, 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