Sean T. Nguyen, MD

Medicare activity in 2024

Official CMS public-use data for Sean T. Nguyen, 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. Emergency department visit with high level of medical decision making (99285)252 services
2. Emergency department visit with moderate level of medical decision making (99284)115 services
3. Critical care, first 30-74 minutes (99291)39 services
4. Emergency department visit with low level of medical decision making (99283)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 pressure75%
• High cholesterol71%
• Arthritis44%
• Diabetes39%
• Chronic kidney disease38%
• Depression33%

Hospitals where Sean T. Nguyen works

Medicare's Facility Affiliation Data lists Sean T. Nguyen 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.

• Valley Medical CenterRenton, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500088

Practice locations

Addresses where Sean T. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

• 400 S 43rd StRenton, WA 98055 (425) 228‑3440

Group practices

Medicare enrollment lists Sean T. Nguyen as a member of this group (CMS data updated October 2, 2026).

• Associated Emergency Room Physicians Inc PS27 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Washington →

Other emergency medicine doctors in Renton

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

• Andrew Needleman, MD
• Cameron R. Buck, MD
• Jessica M. Doan, DO
• Karin Gunther, MD
• David C. Sternfeld, MD
• Brian D. Johnson, MD
• Thomas Haffner, MD
• Diane Truong, MD

All emergency medicine doctors in Renton →

Other clinicians in Associated Emergency Room Physicians Inc PS

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

• Andrew Needleman, MD
• Cameron R. Buck, MD
• Jessica M. Doan, DO
• David C. Sternfeld, MD
• Jordan Rudman, MD
• Thomas Haffner, 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