Chau T. Nguyen, MD

Medicare activity in 2024

Official CMS public-use data for Chau 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)83 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)60 services
3. Removal of impacted ear wax (69210)41 services
4. Diagnostic exam of voice box using a flexible endoscope (31575)36 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)31 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 pressure70%
• High cholesterol66%
• Diabetes46%
• Arthritis46%
• Anxiety27%
• Depression21%

Hospitals where Chau T. Nguyen works

Medicare's Facility Affiliation Data lists Chau 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.

• Community Memorial Hospital - VenturaVentura, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050394
• Ventura County Medical CenterVentura, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050159

Practice locations

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

• 168 N Brent St, Suite 302Ventura, CA 93003 (805) 652‑6373
• 300 Hillmont AveVentura, CA 93003 (805) 654‑3306

Group practices

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

• County of Ventura344 clinicians in the group
• Community Memorial Health System185 clinicians in the group

Specialties

• Otolaryngologyprimary

Find other Otolaryngology doctors in California →

Other ENT doctors in Ventura

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

• Armin Alavi, MD
• Elisabeth M. Barbosa, MD
• Abhay M. Vaidya, MD
• Mika Sumiyoshi, MD
• Edgar A. Lueg, MD
• Alexa M. Castellano, MD
• Brent J. Geffen, MD

All ENT doctors in Ventura →

Other clinicians in County of Ventura

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

• Richard R. Rutherford, MD
• Stephanie C. Greger, MD
• Michael Ramirez, MD
• Joseph S. Meshriky, MD
• Xin Guan, MD
• Carolyn A. Morris, 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