Nang T. Nguyen, DO

Medicare activity in 2024

Official CMS public-use data for Nang 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. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)74 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)43 services
3. Insertion of central venous tube with port (5 years or older) (36561)15 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%
• Diabetes54%
• Arthritis29%
• Chronic kidney disease25%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)25%

Hospitals where Nang T. Nguyen works

Medicare's Facility Affiliation Data lists Nang 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.

• 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 Nang T. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

• 200 Jose Figueres Ave, Suite 225San Jose, CA 95116 (408) 929‑5610

Group practices

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

• Advanced Surgical Associates6 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in California →

Other general surgeons in San Jose

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

• Mary M. Wolfe, MD
• Tiffany E. Chao
• Jamie M. Tung, MD
• Hemant V. Keny, MD
• Christina Klecker, MD
• Mohammad B. Musa, MD
• Frederick Wright, MD
• Angela E. Chen, MD

All general surgeons in San Jose →

Other clinicians in Advanced Surgical Associates

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

• Mark Morishige, MD
• Ian J. Barrett, MD
• Huy T. Nguyen, DO
• Douglas M. Phan, 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