Jeffrey J. Tsai, MD

Medicare activity in 2024

Official CMS public-use data for Jeffrey J. Tsai, 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. Measurement of brain wave activity with video (veeg), 12-26 hours with review and report by health care professional (95720)68 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)41 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)34 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)28 services
5. Measurement of brain wave activity with video (veeg), 2-12 hours with review and report by health care professional (95718)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).

• High blood pressure54%
• High cholesterol49%
• Stroke or mini-stroke36%
• Depression33%
• Anxiety29%
• Ischemic heart disease27%

Hospitals where Jeffrey J. Tsai works

Medicare's Facility Affiliation Data lists Jeffrey J. Tsai 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.

• Harborview Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500064
• Olympic Medical CenterPort Angeles, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500072
• 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 Jeffrey J. Tsai is enrolled with Medicare (CMS data updated October 2, 2026).

• 1701 Columbia RdSeattle, WA 98195 (206) 598‑3100
• 1959 NE Pacific StSeattle, WA 98195 (206) 598‑4333
• 325 9th AveSeattle, WA 98104 (206) 731‑3000

Group practices

Medicare enrollment lists Jeffrey J. Tsai as a member of this group (CMS data updated October 2, 2026).

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

Specialties

• Epileptologistsprimary

Find other Epileptologists doctors in Washington →

Other epileptologists in Seattle

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

• Andrea L. Cheng Hakimian, MD
• Nausheen F. Mahmood, MD
• Nicholas P. Poolos, MD
• Shahin Hakimian, MD
• Daniel J. Zhou, MD
• George S. Plummer, MD
• Michaela A. Castello, MD
• Wolfgang G. Muhlhofer, MD

All epileptologists in Seattle →

Other clinicians in The Association of University Physicians

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

• Amy E. Morris, MD
• Kathryn W. Weaver, MD
• Elizabeth A. Paesch, MD
• Iris W. Liou, MD
• Sarah W. Prager, MD
• Kathleen J. Ramos, 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