Kieu L. Nguyen, MD

Medicare activity in 2024

Official CMS public-use data for Kieu L. 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)298 services
2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)205 services
3. Critical care, first 30-74 minutes (99291)97 services
4. Emergency department visit with moderate level of medical decision making (99284)81 services
5. X-ray of chest, 1 view (71045)49 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%
• Diabetes42%
• Arthritis42%
• Ischemic heart disease39%
• Chronic kidney disease36%

Hospitals where Kieu L. Nguyen works

Medicare's Facility Affiliation Data lists Kieu L. 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.

• El Camino HealthMountain View, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050308
• Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050380
• Santa Clara Valley Medical CenterSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050038

Practice locations

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

• 2105 Forest AveSan Jose, CA 95128 (408) 947‑2500
• 2500 Grant RdMountain View, CA 94040 (650) 940‑7000

Group practices

Medicare enrollment lists Kieu L. Nguyen as a member of these groups (CMS data updated October 2, 2026).

• Cep America - California1,292 clinicians in the group
• Emergency Physicians Associates San Jose PC132 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in San Jose

Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.

• Tien Lu, MD
• Yvonne E. Ramberger, MD
• Duc M. Tran, DO
• Benjamin R. Supat, MD
• Jeffrey M. Lin, DO
• Tracy Nguyen, MD
• Sriram Cherukupalli, DO
• Peter Angelov, DO

All emergency medicine doctors in San Jose →

Other clinicians in Cep America - California

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

• Albert H. Zhou, MD
• Natasha P. Labelle, MD
• Ronald P. Goubert, MD
• Arjun C. Bakshi, DO
• Marcella Watson, PA
• Leann Mainis, 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