Alexander H. Nguyen, MD

Medicare activity in 2024

Official CMS public-use data for Alexander H. 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)226 services
2. Ultrasound study of arm or leg veins with compression and maneuvers (93970)85 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)62 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)61 services
5. Ultrasound study of one arm or leg veins with compression and maneuvers (93971)54 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%
• Diabetes65%
• Arthritis53%
• Chronic kidney disease49%
• Ischemic heart disease46%

Hospitals where Alexander H. Nguyen works

Medicare's Facility Affiliation Data lists Alexander H. 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.

• Adventist Health HanfordHanford, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050121
• Saint Agnes Medical CenterFresno, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050093

Practice locations

Addresses where Alexander H. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 1510 E Herndon Ave, Suite 210Fresno, CA 93720 (559) 450‑7200
• 365 Lennon LnWalnut Creek, CA 94598
• 384 Pearson DrPorterville, CA 93257 (559) 625‑4118
• 7015 N Maple Ave, Suite 101Fresno, CA 93720 (559) 450‑3456
• 820 S Akers StVisalia, CA 93277 (559) 625‑4118

Group practices

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

• Bass Medical Group291 clinicians in the group
• Saint Agnes Medical Foundation161 clinicians in the group
• South Valley Vascular Associates Inc.5 clinicians in the group

Specialties

• Vascular Surgeryprimary

Find other Vascular Surgery doctors in California →

Other vascular surgeons in Fresno

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

• James H. Lee, MD
• Anne M. Prentice, MD
• Yan Cho, MD
• Kate E. Kiely, MD
• Sammy S. Siada, DO
• Philip J. Hinton, MD
• Leigh Ann Obanion, MD
• Viraj Pandit, MD

All vascular surgeons in Fresno →

Other clinicians in Bass Medical Group

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

• Robert C. Algar, MD
• Richard T. Nguyen, DO
• Daniel H. Morgan, MD
• Arminda S. Tolentino, MD
• Kaling Cheung, MD
• Julie A. Long, 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